Satellite communication is moving toward multi-band, large bandwidth communication and high data rate space networking, which requires more processing, switching, and high-speed transmission capability of satellite communication payload. The electronic bottleneck of traditional microwave systems in processing speed and transmission bandwidth makes it difficult to adapt to the future demands of satellite communications. Aiming at the limitations of satellite communication based on traditional microwave technology, this article discusses the potential benefits of satellite communication payload based on microwave photonic (SCP-MP) to space information communication networks (SICN). Then it proposes the architecture of SCP-MP, along with its main components and functional structure. We also review the key technologies, such as low spurious frequency conversion, channelization, optical switching, chip, and integration, and discuss challenges. An outlook on the prospects of SCP-MP is also included.
{"title":"Satellite Communication Payload Based on Microwave Photonics: Benefits, Architecture, and Technologies","authors":"Yuanzhi He, Qinggui Tan, Wen Aijun, Lingyang Song, Liu Yun, Shan Dongjuan","doi":"10.1109/MWC.011.2200306","DOIUrl":"https://doi.org/10.1109/MWC.011.2200306","url":null,"abstract":"Satellite communication is moving toward multi-band, large bandwidth communication and high data rate space networking, which requires more processing, switching, and high-speed transmission capability of satellite communication payload. The electronic bottleneck of traditional microwave systems in processing speed and transmission bandwidth makes it difficult to adapt to the future demands of satellite communications. Aiming at the limitations of satellite communication based on traditional microwave technology, this article discusses the potential benefits of satellite communication payload based on microwave photonic (SCP-MP) to space information communication networks (SICN). Then it proposes the architecture of SCP-MP, along with its main components and functional structure. We also review the key technologies, such as low spurious frequency conversion, channelization, optical switching, chip, and integration, and discuss challenges. An outlook on the prospects of SCP-MP is also included.","PeriodicalId":506510,"journal":{"name":"IEEE Wireless Communications","volume":"37 8","pages":"164-171"},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139890260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vitaly Petrov, H. Guerboukha, Daniel M. Mittleman, Arjun Singh
One of the principal differences between 5G-grade mobile millimeter wave (mmWave) and 6G (and beyond) terahertz (THz) band communications is the fact that the latter will often operate in the near field. This is because next-generation THz wireless solutions will have to keep the current physical size of the antenna systems or even increase them at the infrastructure side to combat spreading losses and maintain the desired performance and coverage for lower available transmit power and wider bands. A combination of a large antenna aperture and higher frequency increases the near-field zone around the transmitter. In the THz near field, the dexterity of wave propagation, characterized by the signal wave-front - the time-variant set of all points having the same phase - becomes important. The unique features and properties of these wavefronts provide an additional degree of freedom in system design. In this article, we present a novel concept of wavefront hopping to enable efficient, reliable, and secure THz band communications in the near field. Inspired by an existing “frequency hopping” concept, we show how a dynamic intelligent update of the utilized THz wavefront can work. We further illustrate how the use of this concept improves the characteristics of the THz link in various practical setups, and addresses some of the principal challenges of THz communications, thus making near-field THz communications more technologically and commercially attractive for 6G and beyond wireless networks.
{"title":"Wavefront Hopping: An Enabler for Reliable and Secure Near Field Terahertz Communications in 6G and Beyond","authors":"Vitaly Petrov, H. Guerboukha, Daniel M. Mittleman, Arjun Singh","doi":"10.1109/MWC.003.2300310","DOIUrl":"https://doi.org/10.1109/MWC.003.2300310","url":null,"abstract":"One of the principal differences between 5G-grade mobile millimeter wave (mmWave) and 6G (and beyond) terahertz (THz) band communications is the fact that the latter will often operate in the near field. This is because next-generation THz wireless solutions will have to keep the current physical size of the antenna systems or even increase them at the infrastructure side to combat spreading losses and maintain the desired performance and coverage for lower available transmit power and wider bands. A combination of a large antenna aperture and higher frequency increases the near-field zone around the transmitter. In the THz near field, the dexterity of wave propagation, characterized by the signal wave-front - the time-variant set of all points having the same phase - becomes important. The unique features and properties of these wavefronts provide an additional degree of freedom in system design. In this article, we present a novel concept of wavefront hopping to enable efficient, reliable, and secure THz band communications in the near field. Inspired by an existing “frequency hopping” concept, we show how a dynamic intelligent update of the utilized THz wavefront can work. We further illustrate how the use of this concept improves the characteristics of the THz link in various practical setups, and addresses some of the principal challenges of THz communications, thus making near-field THz communications more technologically and commercially attractive for 6G and beyond wireless networks.","PeriodicalId":506510,"journal":{"name":"IEEE Wireless Communications","volume":"52 2","pages":"48-55"},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139890591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Molisch, Jorge Gómez-Ponce, Naveed A. Abbasi, Wonsuk Choi, Gary Xu, Charlie Zhang
Sub-THz communication systems are anticipated to play a major part in 6G. To develop those systems further, it is important to both analyze the possible coverage, and investigate the propagation channel properties that impact the design of equalizers, guard intervals, and other measures for combatting dispersion. This article describes the key effects based on extensive measurements with both a channel sounder and a real-time testbed. Transmission over more than 120m with data rates in excess of 2.3 Gb/s is demonstrated with the testbed. Then the requirements for equalization are discussed, and explanations provided for the seeming difference of recent results by different groups; it is shown that equalization requirements strongly depend on the modulation and coding scheme used in the system.
{"title":"Properties of Sub-THz Propagation Channels and Their Impact on System Behavior: Channel Measurements and Transmission Experiments","authors":"A. Molisch, Jorge Gómez-Ponce, Naveed A. Abbasi, Wonsuk Choi, Gary Xu, Charlie Zhang","doi":"10.1109/MWC.001.2300329","DOIUrl":"https://doi.org/10.1109/MWC.001.2300329","url":null,"abstract":"Sub-THz communication systems are anticipated to play a major part in 6G. To develop those systems further, it is important to both analyze the possible coverage, and investigate the propagation channel properties that impact the design of equalizers, guard intervals, and other measures for combatting dispersion. This article describes the key effects based on extensive measurements with both a channel sounder and a real-time testbed. Transmission over more than 120m with data rates in excess of 2.3 Gb/s is demonstrated with the testbed. Then the requirements for equalization are discussed, and explanations provided for the seeming difference of recent results by different groups; it is shown that equalization requirements strongly depend on the modulation and coding scheme used in the system.","PeriodicalId":506510,"journal":{"name":"IEEE Wireless Communications","volume":"41 11","pages":"18-24"},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139828308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vitaly Petrov, H. Guerboukha, Daniel M. Mittleman, Arjun Singh
One of the principal differences between 5G-grade mobile millimeter wave (mmWave) and 6G (and beyond) terahertz (THz) band communications is the fact that the latter will often operate in the near field. This is because next-generation THz wireless solutions will have to keep the current physical size of the antenna systems or even increase them at the infrastructure side to combat spreading losses and maintain the desired performance and coverage for lower available transmit power and wider bands. A combination of a large antenna aperture and higher frequency increases the near-field zone around the transmitter. In the THz near field, the dexterity of wave propagation, characterized by the signal wave-front - the time-variant set of all points having the same phase - becomes important. The unique features and properties of these wavefronts provide an additional degree of freedom in system design. In this article, we present a novel concept of wavefront hopping to enable efficient, reliable, and secure THz band communications in the near field. Inspired by an existing “frequency hopping” concept, we show how a dynamic intelligent update of the utilized THz wavefront can work. We further illustrate how the use of this concept improves the characteristics of the THz link in various practical setups, and addresses some of the principal challenges of THz communications, thus making near-field THz communications more technologically and commercially attractive for 6G and beyond wireless networks.
{"title":"Wavefront Hopping: An Enabler for Reliable and Secure Near Field Terahertz Communications in 6G and Beyond","authors":"Vitaly Petrov, H. Guerboukha, Daniel M. Mittleman, Arjun Singh","doi":"10.1109/MWC.003.2300310","DOIUrl":"https://doi.org/10.1109/MWC.003.2300310","url":null,"abstract":"One of the principal differences between 5G-grade mobile millimeter wave (mmWave) and 6G (and beyond) terahertz (THz) band communications is the fact that the latter will often operate in the near field. This is because next-generation THz wireless solutions will have to keep the current physical size of the antenna systems or even increase them at the infrastructure side to combat spreading losses and maintain the desired performance and coverage for lower available transmit power and wider bands. A combination of a large antenna aperture and higher frequency increases the near-field zone around the transmitter. In the THz near field, the dexterity of wave propagation, characterized by the signal wave-front - the time-variant set of all points having the same phase - becomes important. The unique features and properties of these wavefronts provide an additional degree of freedom in system design. In this article, we present a novel concept of wavefront hopping to enable efficient, reliable, and secure THz band communications in the near field. Inspired by an existing “frequency hopping” concept, we show how a dynamic intelligent update of the utilized THz wavefront can work. We further illustrate how the use of this concept improves the characteristics of the THz link in various practical setups, and addresses some of the principal challenges of THz communications, thus making near-field THz communications more technologically and commercially attractive for 6G and beyond wireless networks.","PeriodicalId":506510,"journal":{"name":"IEEE Wireless Communications","volume":"389 ","pages":"48-55"},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139830815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lingxiang Li, Wenrong Chen, Zhi Chen, Tianyu Hu, Weidong Mei, B. Ning
Terahertz (THz) band has attracted increasingly attention from the academic and industry for communications, as it enables gigabit-level data rates for 6G. However, as compared to sub-6GHz signals, THz signals suffer from more severe coverage issue due to more significant propagation loss and vulnerability to line-of-sight (LoS) blockage, which hinders the applications of THz communications. In this article, we propose an integrated sensing and communications (ISAC) assisted beam management technology to tackle this issue. First, we review the evolution of beamforming technologies from microwave frequencies to millimeter-wave (mmWave) and THz frequencies. Then, several promising enabling technologies for ISAC-assisted beamforming are discussed, including radio-frequency (RF) environment mapping and beam management based on environment perception, as well as resource allocation for sensing and communications. Numerical results show that, the proposed ISAC-assisted beam management scheme can significantly reduce the beam misalignment probability by approximately 70 percent and achieve coverage enhancement by 36.4 percent on average, as compared to the traditional one without sensing.
{"title":"Enhancing Terahertz Communications Coverage with ISAC-Assisted Beam Management","authors":"Lingxiang Li, Wenrong Chen, Zhi Chen, Tianyu Hu, Weidong Mei, B. Ning","doi":"10.1109/MWC.002.2300291","DOIUrl":"https://doi.org/10.1109/MWC.002.2300291","url":null,"abstract":"Terahertz (THz) band has attracted increasingly attention from the academic and industry for communications, as it enables gigabit-level data rates for 6G. However, as compared to sub-6GHz signals, THz signals suffer from more severe coverage issue due to more significant propagation loss and vulnerability to line-of-sight (LoS) blockage, which hinders the applications of THz communications. In this article, we propose an integrated sensing and communications (ISAC) assisted beam management technology to tackle this issue. First, we review the evolution of beamforming technologies from microwave frequencies to millimeter-wave (mmWave) and THz frequencies. Then, several promising enabling technologies for ISAC-assisted beamforming are discussed, including radio-frequency (RF) environment mapping and beam management based on environment perception, as well as resource allocation for sensing and communications. Numerical results show that, the proposed ISAC-assisted beam management scheme can significantly reduce the beam misalignment probability by approximately 70 percent and achieve coverage enhancement by 36.4 percent on average, as compared to the traditional one without sensing.","PeriodicalId":506510,"journal":{"name":"IEEE Wireless Communications","volume":"20 5","pages":"34-40"},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139886611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Given the wide coverage of communication networks and tremendous number of mobile devices, it has been proposed to integrate wireless sensing capabilities into mobile communication networks so that the growing demands for ubiquitous sensing can be satisfied without extensively deploying dedicated sensing devices. In this article, we study integrated sensing and communication (ISAC) functionalities from a network level perspective. Specifically, we thoroughly investigate how to efficiently manage the available communication, sensing, computing, and storage resources in the network so that sensing requirements can be satisfied without compromising communication performance. First, we discuss the benefits of embedding ISAC into wireless networks as well as the interactions between communication, sensing, computing, and storage on the network level. Then, we present a feasible solution to efficiently allocate sensing tasks among base stations such that the impact of introducing extra sensing workloads on communication services is minimized. Finally, we identify potential research directions and discuss the associated challenges. This article offers a new viewing angle on ISAC-related research and can motivate more research interests to explore ISAC operations from the networking perspective.
{"title":"Integrated Sensing and Communication: A Network Level Perspective","authors":"Yue Cui, Haichuan Ding, Lian Zhao, Jianping An","doi":"10.1109/MWC.015.2200275","DOIUrl":"https://doi.org/10.1109/MWC.015.2200275","url":null,"abstract":"Given the wide coverage of communication networks and tremendous number of mobile devices, it has been proposed to integrate wireless sensing capabilities into mobile communication networks so that the growing demands for ubiquitous sensing can be satisfied without extensively deploying dedicated sensing devices. In this article, we study integrated sensing and communication (ISAC) functionalities from a network level perspective. Specifically, we thoroughly investigate how to efficiently manage the available communication, sensing, computing, and storage resources in the network so that sensing requirements can be satisfied without compromising communication performance. First, we discuss the benefits of embedding ISAC into wireless networks as well as the interactions between communication, sensing, computing, and storage on the network level. Then, we present a feasible solution to efficiently allocate sensing tasks among base stations such that the impact of introducing extra sensing workloads on communication services is minimized. Finally, we identify potential research directions and discuss the associated challenges. This article offers a new viewing angle on ISAC-related research and can motivate more research interests to explore ISAC operations from the networking perspective.","PeriodicalId":506510,"journal":{"name":"IEEE Wireless Communications","volume":"26 4","pages":"103-109"},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139876452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fengchun Zhang, Mikkel Bengtson, P. Kyösti, Jukka Kyröläinen, Wei Fan
Sub-terahertz (Sub-THz) technology, as one of the key candidates for the six generation (6G) systems, has attracted increasing attention from academia and industry, due to its promise to unleash vast amounts of new frequency spectrum. Sub-THz system designs pose unique and more challenging circumstances compared to traditional communication systems. These challenges arise from the demanding propagation conditions, limited availability of commercial radio frequency (RF) components, the need for high-gain and beam-steerable antennas that are highly integrated at both ends of the communication link, short-range communication scenarios, and the requirement for extreme data rates. Therefore, it is crucial to assess the performance of radio devices in realistic propagation channels in sub-THz communication systems. In this work, we present the concept, challenges, and enabling solutions for achieving sub-THz radio channel emulation. Moreover, we experimentally demonstrated the reconstruction of the measured propagation channels at 140 GHz with a commercial radio channel emulator in the laboratory. The developed dynamic fading channel replay concept and experimental validation procedure allows initial tests of future sub-THz communication devices.
{"title":"Dynamic Sub-THZ Radio Channel Emulation: Principle, Challenges, and Experimental Validation","authors":"Fengchun Zhang, Mikkel Bengtson, P. Kyösti, Jukka Kyröläinen, Wei Fan","doi":"10.1109/MWC.001.2300286","DOIUrl":"https://doi.org/10.1109/MWC.001.2300286","url":null,"abstract":"Sub-terahertz (Sub-THz) technology, as one of the key candidates for the six generation (6G) systems, has attracted increasing attention from academia and industry, due to its promise to unleash vast amounts of new frequency spectrum. Sub-THz system designs pose unique and more challenging circumstances compared to traditional communication systems. These challenges arise from the demanding propagation conditions, limited availability of commercial radio frequency (RF) components, the need for high-gain and beam-steerable antennas that are highly integrated at both ends of the communication link, short-range communication scenarios, and the requirement for extreme data rates. Therefore, it is crucial to assess the performance of radio devices in realistic propagation channels in sub-THz communication systems. In this work, we present the concept, challenges, and enabling solutions for achieving sub-THz radio channel emulation. Moreover, we experimentally demonstrated the reconstruction of the measured propagation channels at 140 GHz with a commercial radio channel emulator in the laboratory. The developed dynamic fading channel replay concept and experimental validation procedure allows initial tests of future sub-THz communication devices.","PeriodicalId":506510,"journal":{"name":"IEEE Wireless Communications","volume":"36 3","pages":"10-16"},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139881092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fengchun Zhang, Mikkel Bengtson, P. Kyösti, Jukka Kyröläinen, Wei Fan
Sub-terahertz (Sub-THz) technology, as one of the key candidates for the six generation (6G) systems, has attracted increasing attention from academia and industry, due to its promise to unleash vast amounts of new frequency spectrum. Sub-THz system designs pose unique and more challenging circumstances compared to traditional communication systems. These challenges arise from the demanding propagation conditions, limited availability of commercial radio frequency (RF) components, the need for high-gain and beam-steerable antennas that are highly integrated at both ends of the communication link, short-range communication scenarios, and the requirement for extreme data rates. Therefore, it is crucial to assess the performance of radio devices in realistic propagation channels in sub-THz communication systems. In this work, we present the concept, challenges, and enabling solutions for achieving sub-THz radio channel emulation. Moreover, we experimentally demonstrated the reconstruction of the measured propagation channels at 140 GHz with a commercial radio channel emulator in the laboratory. The developed dynamic fading channel replay concept and experimental validation procedure allows initial tests of future sub-THz communication devices.
{"title":"Dynamic Sub-THZ Radio Channel Emulation: Principle, Challenges, and Experimental Validation","authors":"Fengchun Zhang, Mikkel Bengtson, P. Kyösti, Jukka Kyröläinen, Wei Fan","doi":"10.1109/MWC.001.2300286","DOIUrl":"https://doi.org/10.1109/MWC.001.2300286","url":null,"abstract":"Sub-terahertz (Sub-THz) technology, as one of the key candidates for the six generation (6G) systems, has attracted increasing attention from academia and industry, due to its promise to unleash vast amounts of new frequency spectrum. Sub-THz system designs pose unique and more challenging circumstances compared to traditional communication systems. These challenges arise from the demanding propagation conditions, limited availability of commercial radio frequency (RF) components, the need for high-gain and beam-steerable antennas that are highly integrated at both ends of the communication link, short-range communication scenarios, and the requirement for extreme data rates. Therefore, it is crucial to assess the performance of radio devices in realistic propagation channels in sub-THz communication systems. In this work, we present the concept, challenges, and enabling solutions for achieving sub-THz radio channel emulation. Moreover, we experimentally demonstrated the reconstruction of the measured propagation channels at 140 GHz with a commercial radio channel emulator in the laboratory. The developed dynamic fading channel replay concept and experimental validation procedure allows initial tests of future sub-THz communication devices.","PeriodicalId":506510,"journal":{"name":"IEEE Wireless Communications","volume":"114 ","pages":"10-16"},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139821187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Given the wide coverage of communication networks and tremendous number of mobile devices, it has been proposed to integrate wireless sensing capabilities into mobile communication networks so that the growing demands for ubiquitous sensing can be satisfied without extensively deploying dedicated sensing devices. In this article, we study integrated sensing and communication (ISAC) functionalities from a network level perspective. Specifically, we thoroughly investigate how to efficiently manage the available communication, sensing, computing, and storage resources in the network so that sensing requirements can be satisfied without compromising communication performance. First, we discuss the benefits of embedding ISAC into wireless networks as well as the interactions between communication, sensing, computing, and storage on the network level. Then, we present a feasible solution to efficiently allocate sensing tasks among base stations such that the impact of introducing extra sensing workloads on communication services is minimized. Finally, we identify potential research directions and discuss the associated challenges. This article offers a new viewing angle on ISAC-related research and can motivate more research interests to explore ISAC operations from the networking perspective.
{"title":"Integrated Sensing and Communication: A Network Level Perspective","authors":"Yue Cui, Haichuan Ding, Lian Zhao, Jianping An","doi":"10.1109/MWC.015.2200275","DOIUrl":"https://doi.org/10.1109/MWC.015.2200275","url":null,"abstract":"Given the wide coverage of communication networks and tremendous number of mobile devices, it has been proposed to integrate wireless sensing capabilities into mobile communication networks so that the growing demands for ubiquitous sensing can be satisfied without extensively deploying dedicated sensing devices. In this article, we study integrated sensing and communication (ISAC) functionalities from a network level perspective. Specifically, we thoroughly investigate how to efficiently manage the available communication, sensing, computing, and storage resources in the network so that sensing requirements can be satisfied without compromising communication performance. First, we discuss the benefits of embedding ISAC into wireless networks as well as the interactions between communication, sensing, computing, and storage on the network level. Then, we present a feasible solution to efficiently allocate sensing tasks among base stations such that the impact of introducing extra sensing workloads on communication services is minimized. Finally, we identify potential research directions and discuss the associated challenges. This article offers a new viewing angle on ISAC-related research and can motivate more research interests to explore ISAC operations from the networking perspective.","PeriodicalId":506510,"journal":{"name":"IEEE Wireless Communications","volume":"29 14","pages":"103-109"},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139816643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Satellite communication is moving toward multi-band, large bandwidth communication and high data rate space networking, which requires more processing, switching, and high-speed transmission capability of satellite communication payload. The electronic bottleneck of traditional microwave systems in processing speed and transmission bandwidth makes it difficult to adapt to the future demands of satellite communications. Aiming at the limitations of satellite communication based on traditional microwave technology, this article discusses the potential benefits of satellite communication payload based on microwave photonic (SCP-MP) to space information communication networks (SICN). Then it proposes the architecture of SCP-MP, along with its main components and functional structure. We also review the key technologies, such as low spurious frequency conversion, channelization, optical switching, chip, and integration, and discuss challenges. An outlook on the prospects of SCP-MP is also included.
{"title":"Satellite Communication Payload Based on Microwave Photonics: Benefits, Architecture, and Technologies","authors":"Yuanzhi He, Qinggui Tan, Wen Aijun, Lingyang Song, Liu Yun, Shan Dongjuan","doi":"10.1109/MWC.011.2200306","DOIUrl":"https://doi.org/10.1109/MWC.011.2200306","url":null,"abstract":"Satellite communication is moving toward multi-band, large bandwidth communication and high data rate space networking, which requires more processing, switching, and high-speed transmission capability of satellite communication payload. The electronic bottleneck of traditional microwave systems in processing speed and transmission bandwidth makes it difficult to adapt to the future demands of satellite communications. Aiming at the limitations of satellite communication based on traditional microwave technology, this article discusses the potential benefits of satellite communication payload based on microwave photonic (SCP-MP) to space information communication networks (SICN). Then it proposes the architecture of SCP-MP, along with its main components and functional structure. We also review the key technologies, such as low spurious frequency conversion, channelization, optical switching, chip, and integration, and discuss challenges. An outlook on the prospects of SCP-MP is also included.","PeriodicalId":506510,"journal":{"name":"IEEE Wireless Communications","volume":"335 ","pages":"164-171"},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139830163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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