Channel Emulators
Channel Emulators Market Segments - by Type (Hardware Channel Emulators, Software Channel Emulators, FPGA Channel Emulators, Waveform Channel Emulators, MIMO Channel Emulators), Application (Wireless Communication, Automotive, Aerospace & Defense, Research & Development, Others), End-User (Telecommunication Companies, Electronics Manufacturers, Research Institutes, Others), Frequency Range (Up to 6 GHz, 6-30 GHz, Above 30 GHz), and Region (North America, Europe, Asia Pacific, Latin America, Middle East & Africa) - Global Industry Analysis, Growth, Share, Size, Trends, and Forecast 2025-2035
- Report Preview
- Table Of Content
- Segments
- Methodology
Channel Emulators Market Outlook
The global Channel Emulators market is projected to reach approximately USD 1.2 billion by 2035, with a compound annual growth rate (CAGR) of around 10% from 2025 to 2035. This growth is primarily driven by the increasing demand for advanced communication technologies, particularly in wireless communication systems, where the need for testing and validation of complex signal environments is critical. The surge in wireless devices and the expansion of 5G networks necessitate the use of channel emulators for accurate simulations, thereby propelling market growth. Furthermore, the automotive sector's advancements in connected vehicles and the aerospace industry's requirements for robust communication systems are also significant factors contributing to the market's expansion. The growing trend of research and development in next-generation communication technologies further adds to the market's momentum, increasing the adoption of channel emulators across various sectors.
Growth Factor of the Market
The channel emulators market is experiencing remarkable growth due to several key factors. First, the rapid expansion of 5G technology and the Internet of Things (IoT) are creating a substantial need for effective testing tools that can assess the performance of communication systems under various conditions. As wireless communication becomes increasingly complex, channel emulators serve as essential tools for engineers and developers, enabling them to simulate real-world scenarios. Second, the rise in investments by telecommunications companies to upgrade their infrastructure and enhance network reliability has pushed the demand for advanced emulators that can accurately replicate channel conditions. Additionally, the growing trend towards automation in various industries enhances the necessity for precise testing systems, further boosting the channel emulators market. Moreover, government initiatives promoting research and development in communication technologies are expected to provide additional growth opportunities for the market. Lastly, the surge in demand for high-frequency components, especially in automotive and aerospace applications, is anticipated to drive the market forward significantly.
Key Highlights of the Market
- Projected growth of the global channel emulators market to USD 1.2 billion by 2035.
- Compound annual growth rate (CAGR) of approximately 10% from 2025 to 2035.
- Increasing adoption of 5G technology and IoT applications driving market expansion.
- Significant demand from telecommunications and automotive sectors for advanced testing tools.
- Rise in government initiatives and funding for research in communication technologies.
By Type
Hardware Channel Emulators:
Hardware channel emulators are essential for replicating various channel conditions in wireless communication systems. These devices are designed to simulate real-world radio frequency environments, allowing engineers to conduct thorough testing of wireless devices. The demand for hardware emulators is largely driven by their ability to provide high fidelity and accuracy during simulations, which is crucial for validating the performance of 5G networks and other advanced communication technologies. Hardware channel emulators often come equipped with multiple channels and can mimic fading, delay, and Doppler effects, making them indispensable for research institutions and telecommunications companies. The growth in this segment is expected to continue as wireless communication standards evolve and the need for rigorous testing becomes more pronounced.
Software Channel Emulators:
Software channel emulators play a critical role in the simulation and analysis of communication channels through software-based solutions. These tools enable users to create customizable channel conditions without the need for hardware, making them cost-effective and versatile. They are particularly popular in research and development environments, where engineers require flexibility to modify parameters and test various scenarios. The growth of software channel emulators can be attributed to the increasing adoption of virtual testing environments, which allow for rapid prototyping and iterative design processes. With advancements in computing power and software development, the capabilities of these emulators are expanding, leading to a heightened interest from telecommunications and electronics manufacturers in utilizing software solutions for their testing needs.
FPGA Channel Emulators:
Field Programmable Gate Array (FPGA) channel emulators offer a unique advantage in providing highly configurable and programmable testing environments for communication systems. These emulators enable designers to implement complex algorithms and protocols by programming the FPGA, allowing for real-time modifications during testing. The use of FPGA technology in channel emulation is gaining traction due to its ability to handle high-speed signals and provide parallel processing capabilities. As the demand for high-performance testing solutions grows, especially in the aerospace and defense sectors, FPGA channel emulators are becoming increasingly important. Their flexibility and capacity to simulate a wide range of channel conditions make them indispensable for companies engaged in high-frequency and advanced wireless communication research.
Waveform Channel Emulators:
Waveform channel emulators are specifically designed to replicate the characteristics of various waveform types used in modern communication systems. These emulators allow for the simulation of real-world channel conditions while analyzing the performance of different modulation schemes. The rise in diverse communication standards, including 5G and beyond, has driven the demand for waveform channel emulators significantly. Researchers and engineers utilize these tools to evaluate the efficacy of their designs under varying conditions, which is crucial for optimizing performance. The growing emphasis on spectral efficiency and the need for accurate performance assessments in wireless communication are expected to contribute to the sustained growth of this segment in the coming years.
MIMO Channel Emulators:
Multiple Input Multiple Output (MIMO) channel emulators are tailored to simulate advanced multiple antenna techniques, which are integral to achieving higher data rates and improved performance in wireless systems. As MIMO technology becomes increasingly prevalent in 5G networks and beyond, the demand for MIMO channel emulators is on the rise. These emulators can replicate complex spatial channel environments, enabling engineers to test and validate MIMO systems effectively. The growth of the MIMO segment is closely linked to the increasing need for enhanced data throughput and reliability in wireless communications, prompting manufacturers to invest in MIMO channel emulation solutions. With the continual evolution of communication technologies, this segment is expected to witness significant advancements and adoption in the years to come.
By Application
Wireless Communication:
The wireless communication application segment is the largest and fastest-growing segment of the channel emulators market. With the rapid adoption of 5G technology and the increasing reliance on wireless connectivity across various sectors, the demand for advanced channel emulation solutions in this area is surging. Channel emulators are essential for testing and validating the performance of wireless devices under diverse conditions, ensuring that they meet the rigorous standards set by regulatory bodies. This segment is characterized by the need for high fidelity and accuracy in simulations, which can be achieved through a combination of hardware and software solutions tailored to the specific requirements of wireless communications. As wireless communication technologies continue to evolve, the demand for reliable channel emulation is expected to remain robust.
Automotive:
The automotive application segment is gaining traction as vehicles become increasingly connected and automated. The rise of smart vehicles, which rely on robust communication systems for functionalities such as vehicle-to-everything (V2X) communication, has made channel emulators vital for testing these systems. Emulators allow automotive engineers to simulate real-world driving environments and assess the performance of communication systems under varying conditions, ensuring safety and reliability. The growth of this segment is driven by the increasing focus on enhancing vehicle safety and performance through advanced communication technologies, leading automotive manufacturers to invest in channel emulation tools for rigorous testing and validation purposes.
Aerospace & Defense:
The aerospace and defense application segment is notable for its stringent requirements for communication systems, necessitating precise testing and validation processes. Channel emulators are essential tools in this sector, allowing engineers to simulate various scenarios that communication systems may encounter during operation. With the growing emphasis on secure and reliable communication in defense applications, the demand for advanced channel emulators is expected to rise. Aerospace projects also benefit from these emulators, as they enable the testing of communication systems in extreme conditions and ensure compliance with strict regulatory standards. The growth of this segment is anticipated to continue as innovations in aerospace technology and defense systems evolve.
Research & Development:
The research and development application segment is critical for advancing communication technologies and innovations. Channel emulators play a pivotal role in R&D environments, providing engineers and researchers with the ability to simulate various channel conditions and assess the performance of new technologies. The increasing investments in R&D across various industries, including telecommunications, automotive, and aerospace, are driving the demand for channel emulators. As organizations strive to accelerate innovation and bring new products to market, the need for effective testing tools becomes more pronounced. The research and development segment is expected to witness significant growth as the pace of technological advancement continues to accelerate.
Others:
Other applications of channel emulators include various industries that require reliable communication systems but may not fit into the primary segments mentioned. This includes sectors such as industrial automation, healthcare, and educational institutions that require testing and validation of communication technologies. The demand for channel emulators in these areas is driven by the increasing reliance on wireless communication systems and the need for effective testing solutions. As more industries recognize the importance of communication technology in their operations, the market for channel emulators in these additional applications is anticipated to grow steadily, contributing to the overall expansion of the market.
By User
Telecommunication Companies:
Telecommunication companies are among the primary users of channel emulators, as they require efficient testing tools to validate the performance of their network infrastructure. These companies leverage channel emulators to assess the reliability and capacity of their communication systems, especially with the rapid deployment of 5G networks. The demand for channel emulators in this sector is driven by the need to ensure that new technologies can handle the increasing volume of data traffic while maintaining high levels of service quality. By utilizing channel emulators, telecommunication companies can conduct thorough testing and optimization, ultimately leading to improved network performance and customer satisfaction. The continued growth of the telecommunications industry will bolster the demand for channel emulators, as companies strive to stay competitive and meet evolving customer needs.
Electronics Manufacturers:
Electronics manufacturers are increasingly recognizing the importance of channel emulators for testing the performance of their products. As the complexity of electronic devices grows, so does the necessity for rigorous testing of wireless communication capabilities. Channel emulators enable manufacturers to simulate real-world environments and evaluate how their products perform under various conditions. This is crucial for ensuring compliance with international standards and regulations. The electronics manufacturing sector is experiencing significant growth, driven by advancements in communication technologies, consumer electronics, and IoT devices, which in turn is fueling the demand for reliable channel emulation solutions. As manufacturers seek to enhance product quality and performance, the importance of channel emulators in their development processes will only increase.
Research Institutes:
Research institutes play a vital role in the advancement of communication technologies, and channel emulators are essential tools in their laboratories. These organizations utilize channel emulators to conduct experiments, validate theories, and develop new technologies that can shape the future of wireless communication. The demand for channel emulators in research settings is driven by the need for flexibility and precision in testing, as researchers often work with innovative concepts that require thorough evaluation. The growth of this segment is supported by the increasing collaboration between research institutions and industry players, fostering an environment of innovation. As the demand for cutting-edge communication solutions continues to rise, research institutes will increasingly rely on channel emulators to facilitate their work.
Others:
The 'Others' category encompasses various users of channel emulators, including smaller companies, startups, and educational institutions that require testing solutions for their communication systems. These users may not fit into the primary categories but still demand reliable channel emulation tools for their development processes. The growth of this segment is driven by the increasing awareness of the importance of testing in achieving high-quality communication systems. As more organizations recognize the value of effective channel emulation, the demand for solutions that cater to a diverse range of users is expected to grow, contributing positively to the overall channel emulators market.
By Frequency Range
Up to 6 GHz:
The frequency range of up to 6 GHz represents a significant portion of the channel emulators market, primarily due to its relevance in various communication applications, including Wi-Fi and cellular technologies. Emulators operating within this frequency range are crucial for testing devices that operate on lower frequency bands, which are still widely utilized in consumer electronics and telecommunications. The demand for channel emulators in this range is driven by the continued deployment of broadband services and the need for reliable wireless communication systems. As organizations strive to enhance their network capabilities and meet consumer demand for high-speed internet, the growth of this segment will remain steady.
6-30 GHz:
The 6-30 GHz frequency range is becoming increasingly important as communication technologies evolve to support higher data rates and improved performance. This segment encompasses many emerging technologies, including advanced cellular networks like 5G and millimeter-wave communication systems. The demand for channel emulators in this frequency range is driven by the need for thorough testing of devices operating at these frequencies, which are critical for high-speed data transmission and low-latency communication. As the industry continues to invest in next-generation wireless technologies, the growth potential for channel emulators operating within this range is expected to be substantial.
Above 30 GHz:
Channel emulators operating above 30 GHz are at the forefront of the new wave of communication technologies, particularly in applications such as millimeter-wave communication and satellite communication. As the demand for higher bandwidth and faster data transmission continues to grow, the importance of channel emulators capable of simulating conditions at these frequencies becomes paramount. The aerospace, defense, and telecommunications sectors are particularly interested in this range due to its potential for supporting next-generation communication systems. The growth of this segment is expected to accelerate as industries increasingly adopt high-frequency technologies to meet evolving communication demands.
By Region
The North American region is projected to dominate the channel emulators market, accounting for a substantial share due to the presence of leading telecommunications companies and technological advancements in the region. The growing investment in 5G deployment and the increasing focus on IoT applications are expected to drive the demand for channel emulators significantly. The market in North America is anticipated to witness a CAGR of around 11% from 2025 to 2035, indicating robust growth prospects. Additionally, the region's emphasis on research and development, along with the collaboration between industry and academia, further enhances the growth potential of the channel emulators market in this region.
Europe is also a key player in the channel emulators market, driven by a strong focus on telecommunications infrastructure and advancements in wireless communication technologies. Countries such as Germany, the UK, and France are at the forefront of adopting advanced communication systems, necessitating reliable testing solutions like channel emulators. The increasing regulations surrounding communication quality and performance are fueling the demand for accurate testing tools in this region. Moreover, with the European Union's initiatives to promote digital transformation and connectivity, the channel emulators market in Europe is expected to grow steadily, contributing to the overall global growth trends.
Opportunities
The channel emulators market is poised for significant opportunities driven by technological advancements and increasing demand for reliable communication systems. As the global shift towards 5G technology accelerates, there is a pressing need for comprehensive testing solutions that can simulate complex wireless environments. This presents an opportunity for manufacturers of channel emulators to innovate and develop new products that cater to the specific requirements of 5G testing. Moreover, with the rise of IoT applications and smart devices, the market for channel emulators is expanding to meet the diverse needs of various industries, including automotive, aerospace, and healthcare. Companies that can adapt to these evolving trends by offering tailored solutions will be well-positioned to capitalize on the growth opportunities presented by the market.
Furthermore, the increasing emphasis on research and development in communication technologies offers another avenue for growth in the channel emulators market. As more organizations invest in R&D to innovate and enhance their wireless communication solutions, the demand for sophisticated testing tools will rise. This presents a prime opportunity for channel emulator manufacturers to collaborate with research institutions and technology developers, providing them with the necessary tools to conduct thorough testing and validation. Additionally, emerging markets in Asia Pacific and Latin America are witnessing an upward trend in wireless communication adoption, creating further opportunities for channel emulator providers to expand their reach and establish a strong presence in these regions.
Threats
Despite the promising growth prospects of the channel emulators market, there are several threats that could hinder its progress. One of the primary threats is the rapid technological advancements in communication systems, which may lead to the obsolescence of existing emulator technologies. As new standards and technologies emerge, channel emulator manufacturers must continuously innovate to keep pace with industry developments. Failure to do so could result in a loss of market share to competitors who can offer more advanced solutions. Additionally, the high costs associated with developing and maintaining sophisticated channel emulators can pose challenges for smaller companies looking to enter the market, limiting their ability to compete effectively against established players.
Another threat to the channel emulators market is the potential for economic downturns or fluctuations in market demand. Economic instability can lead to reduced investments in communication infrastructure and R&D, directly impacting the demand for channel emulators. Companies operating in this market must navigate these uncertainties effectively and adapt their strategies to mitigate the impact of economic challenges. Furthermore, the increasing focus on environmentally sustainable practices may create pressure on manufacturers to develop eco-friendly solutions, requiring significant investment in research and development to meet these expectations.
Competitor Outlook
- Keysight Technologies
- Rohde & Schwarz
- National Instruments
- Tektronix
- VIAVI Solutions
- Anritsu Corporation
- Spirent Communications
- Ametek, Inc.
- Qorvo, Inc.
- Vector Software
- Calnex Solutions
- NI (formerly National Instruments)
- Chroma ATE Inc.
- InTEST Corporation
- Teledyne LeCroy
The competitive landscape of the channel emulators market is characterized by the presence of several key players that are continually innovating to stay ahead. Major companies such as Keysight Technologies and Rohde & Schwarz lead the market with their comprehensive range of testing solutions tailored for wireless and communication technologies. Their strong focus on research and development enables them to offer advanced channel emulators that meet the evolving needs of telecommunications companies and manufacturers. Moreover, these companies possess significant market share due to their established reputations and long-standing relationships with major industry players.
National Instruments and Tektronix are also significant competitors in the channel emulators market, providing robust solutions that cater to a wide array of applications. Their commitment to delivering high-quality and accurate testing tools has earned them a loyal customer base in telecommunications, automotive, and aerospace sectors. As the demand for reliable communication systems continues to grow, these companies are well-positioned to seize opportunities in the market by enhancing their product offerings and expanding into emerging regions.
Emerging players such as Calnex Solutions and Spirent Communications are making notable strides in the channel emulators market, focusing on niche applications and expanding their market presence. With their innovative technologies and agile business models, these companies are challenging established players and creating competitive pressure in the market. As the need for advanced testing solutions increases, these emerging companies have the potential to disrupt the market dynamics and capture a significant share of the growing demand for channel emulators.
1 Appendix
- 1.1 List of Tables
- 1.2 List of Figures
2 Introduction
- 2.1 Market Definition
- 2.2 Scope of the Report
- 2.3 Study Assumptions
- 2.4 Base Currency & Forecast Periods
3 Market Dynamics
- 3.1 Market Growth Factors
- 3.2 Economic & Global Events
- 3.3 Innovation Trends
- 3.4 Supply Chain Analysis
4 Consumer Behavior
- 4.1 Market Trends
- 4.2 Pricing Analysis
- 4.3 Buyer Insights
5 Key Player Profiles
- 5.1 Tektronix
- 5.1.1 Business Overview
- 5.1.2 Products & Services
- 5.1.3 Financials
- 5.1.4 Recent Developments
- 5.1.5 SWOT Analysis
- 5.2 Qorvo, Inc.
- 5.2.1 Business Overview
- 5.2.2 Products & Services
- 5.2.3 Financials
- 5.2.4 Recent Developments
- 5.2.5 SWOT Analysis
- 5.3 Ametek, Inc.
- 5.3.1 Business Overview
- 5.3.2 Products & Services
- 5.3.3 Financials
- 5.3.4 Recent Developments
- 5.3.5 SWOT Analysis
- 5.4 Chroma ATE Inc.
- 5.4.1 Business Overview
- 5.4.2 Products & Services
- 5.4.3 Financials
- 5.4.4 Recent Developments
- 5.4.5 SWOT Analysis
- 5.5 Rohde & Schwarz
- 5.5.1 Business Overview
- 5.5.2 Products & Services
- 5.5.3 Financials
- 5.5.4 Recent Developments
- 5.5.5 SWOT Analysis
- 5.6 Teledyne LeCroy
- 5.6.1 Business Overview
- 5.6.2 Products & Services
- 5.6.3 Financials
- 5.6.4 Recent Developments
- 5.6.5 SWOT Analysis
- 5.7 VIAVI Solutions
- 5.7.1 Business Overview
- 5.7.2 Products & Services
- 5.7.3 Financials
- 5.7.4 Recent Developments
- 5.7.5 SWOT Analysis
- 5.8 Vector Software
- 5.8.1 Business Overview
- 5.8.2 Products & Services
- 5.8.3 Financials
- 5.8.4 Recent Developments
- 5.8.5 SWOT Analysis
- 5.9 Calnex Solutions
- 5.9.1 Business Overview
- 5.9.2 Products & Services
- 5.9.3 Financials
- 5.9.4 Recent Developments
- 5.9.5 SWOT Analysis
- 5.10 InTEST Corporation
- 5.10.1 Business Overview
- 5.10.2 Products & Services
- 5.10.3 Financials
- 5.10.4 Recent Developments
- 5.10.5 SWOT Analysis
- 5.11 Anritsu Corporation
- 5.11.1 Business Overview
- 5.11.2 Products & Services
- 5.11.3 Financials
- 5.11.4 Recent Developments
- 5.11.5 SWOT Analysis
- 5.12 National Instruments
- 5.12.1 Business Overview
- 5.12.2 Products & Services
- 5.12.3 Financials
- 5.12.4 Recent Developments
- 5.12.5 SWOT Analysis
- 5.13 Keysight Technologies
- 5.13.1 Business Overview
- 5.13.2 Products & Services
- 5.13.3 Financials
- 5.13.4 Recent Developments
- 5.13.5 SWOT Analysis
- 5.14 Spirent Communications
- 5.14.1 Business Overview
- 5.14.2 Products & Services
- 5.14.3 Financials
- 5.14.4 Recent Developments
- 5.14.5 SWOT Analysis
- 5.15 NI (formerly National Instruments)
- 5.15.1 Business Overview
- 5.15.2 Products & Services
- 5.15.3 Financials
- 5.15.4 Recent Developments
- 5.15.5 SWOT Analysis
- 5.1 Tektronix
6 Market Segmentation
- 6.1 Channel Emulators Market, By Type
- 6.1.1 Hardware Channel Emulators
- 6.1.2 Software Channel Emulators
- 6.1.3 FPGA Channel Emulators
- 6.1.4 Waveform Channel Emulators
- 6.1.5 MIMO Channel Emulators
- 6.2 Channel Emulators Market, By User
- 6.2.1 Telecommunication Companies
- 6.2.2 Electronics Manufacturers
- 6.2.3 Research Institutes
- 6.2.4 Others
- 6.3 Channel Emulators Market, By Application
- 6.3.1 Wireless Communication
- 6.3.2 Automotive
- 6.3.3 Aerospace & Defense
- 6.3.4 Research & Development
- 6.3.5 Others
- 6.4 Channel Emulators Market, By Frequency Range
- 6.4.1 Up to 6 GHz
- 6.4.2 6-30 GHz
- 6.4.3 Above 30 GHz
- 6.1 Channel Emulators Market, By Type
7 Competitive Analysis
- 7.1 Key Player Comparison
- 7.2 Market Share Analysis
- 7.3 Investment Trends
- 7.4 SWOT Analysis
8 Research Methodology
- 8.1 Analysis Design
- 8.2 Research Phases
- 8.3 Study Timeline
9 Future Market Outlook
- 9.1 Growth Forecast
- 9.2 Market Evolution
10 Geographical Overview
- 10.1 Europe - Market Analysis
- 10.1.1 By Country
- 10.1.1.1 UK
- 10.1.1.2 France
- 10.1.1.3 Germany
- 10.1.1.4 Spain
- 10.1.1.5 Italy
- 10.1.1 By Country
- 10.2 Asia Pacific - Market Analysis
- 10.2.1 By Country
- 10.2.1.1 India
- 10.2.1.2 China
- 10.2.1.3 Japan
- 10.2.1.4 South Korea
- 10.2.1 By Country
- 10.3 Latin America - Market Analysis
- 10.3.1 By Country
- 10.3.1.1 Brazil
- 10.3.1.2 Argentina
- 10.3.1.3 Mexico
- 10.3.1 By Country
- 10.4 North America - Market Analysis
- 10.4.1 By Country
- 10.4.1.1 USA
- 10.4.1.2 Canada
- 10.4.1 By Country
- 10.5 Channel Emulators Market by Region
- 10.6 Middle East & Africa - Market Analysis
- 10.6.1 By Country
- 10.6.1.1 Middle East
- 10.6.1.2 Africa
- 10.6.1 By Country
- 10.1 Europe - Market Analysis
11 Global Economic Factors
- 11.1 Inflation Impact
- 11.2 Trade Policies
12 Technology & Innovation
- 12.1 Emerging Technologies
- 12.2 AI & Digital Trends
- 12.3 Patent Research
13 Investment & Market Growth
- 13.1 Funding Trends
- 13.2 Future Market Projections
14 Market Overview & Key Insights
- 14.1 Executive Summary
- 14.2 Key Trends
- 14.3 Market Challenges
- 14.4 Regulatory Landscape
Segments Analyzed in the Report
The global Channel Emulators market is categorized based on
By Type
- Hardware Channel Emulators
- Software Channel Emulators
- FPGA Channel Emulators
- Waveform Channel Emulators
- MIMO Channel Emulators
By Application
- Wireless Communication
- Automotive
- Aerospace & Defense
- Research & Development
- Others
By User
- Telecommunication Companies
- Electronics Manufacturers
- Research Institutes
- Others
By Frequency Range
- Up to 6 GHz
- 6-30 GHz
- Above 30 GHz
By Region
- North America
- Europe
- Asia Pacific
- Latin America
- Middle East & Africa
Key Players
- Keysight Technologies
- Rohde & Schwarz
- National Instruments
- Tektronix
- VIAVI Solutions
- Anritsu Corporation
- Spirent Communications
- Ametek, Inc.
- Qorvo, Inc.
- Vector Software
- Calnex Solutions
- NI (formerly National Instruments)
- Chroma ATE Inc.
- InTEST Corporation
- Teledyne LeCroy
- Publish Date : Jan 21 ,2025
- Report ID : IN-42856
- No. Of Pages : 100
- Format : |
- Ratings : 4.5 (110 Reviews)