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Cooperative Beam Routing for Multi-IRS Aided Communication [article]

Weidong Mei, Rui Zhang
2020 pre-print
This letter studies a new IRS-aided communication system, where multiple IRSs assist in the communication between a multi-antenna base station (BS) and a remote single-antenna user by multi-hop signal  ...  To tackle this new problem, we first present the closed-form solutions for the optimal active and cooperative passive beamforming at the BS and selected IRSs, respectively, for a given beam route.  ...  Fig. 1 . 1 A multi-IRS aided communication system with cooperative beam routing.  ... 
doi:10.1109/lwc.2020.3034370 arXiv:2010.13589v1 fatcat:rdfbndd47zgdflopq32x5nw2zm

Cooperative Multi-Beam Routing for Multi-IRS Aided Massive MIMO [article]

Weidong Mei, Rui Zhang
2021 arXiv   pre-print
In this paper, we study the multi-IRS aided downlink communication in a massive multiple-input multiple-output (MIMO) system, where a multi-antenna BS simultaneously serves multiple remote single-antenna  ...  maximized, subject to a new multi-beam routing path separation constraint for avoiding the inter-user/route interference.  ...  Fig. 1 . 1 A multi-IRS aided massive MIMO system with multi-beam routing.  ... 
arXiv:2011.02354v2 fatcat:4pagqlpaibekllrsv7pzhtpcn4

Distributed Beam Training for Intelligent Reflecting Surface Enabled Multi-Hop Routing [article]

Weidong Mei, Rui Zhang
2021 arXiv   pre-print
However, a more challenging joint active/passive beamforming and multi-hop beam routing problem also arises for maximizing the end-to-end channel gain.  ...  Instead of exhaustively or sequentially searching over all combinations of active and passive beam patterns for each beam route, a distributed beam training scheme is proposed to reduce the complexity,  ...  Fig. 1 . 1 (a) A multi-IRS aided wireless network with multi-hop beam routing; (b) the corresponding LoS link graph. reflection path Ω.  ... 
arXiv:2106.11896v2 fatcat:fawzksfqtvhihkm446owk32c5q

Intelligent Reflecting Surface for Multi-Path Beam Routing with Active/Passive Beam Splitting and Combining [article]

Weidong Mei, Rui Zhang
2022 arXiv   pre-print
For this scheme, we formulate a new multi-path beam routing design problem to jointly optimize the number of IRS reflection paths, the selected IRSs for each of the reflection paths, the active/passive  ...  Unlike existing works where only one single multi-IRS reflection path from the BS to user is selected, we propose a new and more general multi-path beam routing scheme.  ...  CONCLUSIONS In this letter, we propose a new multi-path beam routing scheme for multi-IRS aided wireless systems by exploiting the active beam splitting and passive beam combining techniques at the BS  ... 
arXiv:2110.11104v2 fatcat:hmacqmctljfulnbi5us2pyz2eu

Table of Contents

2022 IEEE Transactions on Cognitive Communications and Networking  
Jialiang Gong, Xiaowei Qin, and Xiaodong Xu 121 Deep Learning-Aided Signal Detection for Two-Stage Index Modulated Universal Filtered Multi-Carrier Systems . . . . . . . . . . . .Rongkun Jiang, Zesong  ...  Sharda Tripathi, Corrado Puligheddu, Carla Fabiana Chiasserini, and Federico Mungari 321 Cooperative Multi-Agent Deep Reinforcement Learning for Resource Management in Full Flexible VHTS Systems . . .  ... 
doi:10.1109/tccn.2022.3151485 fatcat:x5olbc4ycjgd7gktuicbmacc3e

Table of contents

2021 IEEE Wireless Communications Letters  
Jahangir Hossain 2484 Distributed Beam Training for Intelligent Reflecting Surface Enabled Multi-Hop Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ...  Fernando Darío Almeida García, Francisco Raimundo Albuquerque Parente, Gustavo Fraidenraich, and José Cândido Silveira Santos Filho 2445 Resource Allocation for IRS-Assisted Wireless Powered Communication  ... 
doi:10.1109/lwc.2021.3120830 fatcat:3yd7m6g3z5fefew6d6mby53ayu

How to Deploy Intelligent Reflecting Surfaces in Wireless Network: BS-side, User-side, or Both Sides? [article]

Changsheng You, Beixiong Zheng, Weidong Mei, Rui Zhang
2022 arXiv   pre-print
Despite the substantial research on IRS-aided communications, this article addresses the important issue of how to deploy IRSs in a wireless network to achieve its optimum performance.  ...  A case study is also presented to compare the performance of different IRS deployment strategies and draw useful insights for practical design.  ...  Figure 5 : 5 Multi-beam multi-hop routing in the multi-IRS aided multi-user communication system via joint active/passive beamforming. Table I : I Comparison of three IRS deployment strategies.  ... 
arXiv:2012.03403v3 fatcat:waltcaymonb5vazzehnjzopysa

Multi-Beam Multi-Hop Routing for Intelligent Reflecting Surfaces Aided Massive MIMO [article]

Weidong Mei, Rui Zhang
2021 arXiv   pre-print
Useful insights into the optimal multi-beam multi-hop routing design are also drawn under different setups of the multi-IRS aided massive MIMO network.  ...  Then we show that the resultant multi-beam multi-hop routing problem can be recast as an equivalent graph-optimization problem, which is however NP-complete.  ...  To solve the proposed MBMH routing problem in a multi-IRS aided massive MIMO network, we first derive the optimal BS/IRS active/passive beamforming solution in their respective codebooks for given beam-routing  ... 
arXiv:2101.00217v2 fatcat:zuppkh4xxbeazb3soxm5enqgfi

A Survey on Millimeter-Wave Beamforming Enabled UAV Communications and Networking [article]

Zhenyu Xiao, Lipeng Zhu, Yanming Liu, Pengfei Yi, Rui Zhang, Xiang-Gen Xia, Robert Schober
2021 arXiv   pre-print
Wireless communication has always been one of the core technologies for UAV. However, the communication capacity is becoming a bottleneck for UAV to support more challenging application scenarios.  ...  Finally, we present open issues and promising directions for future research in mmWave beamforming enabled UAV communications and networking.  ...  links use geographic routing to select alternative routing options Medium Medium Medium High Network coverage and multi-task cooperation for small-scale to large-scale UAV networks Bio-inspired Through  ... 
arXiv:2104.09204v2 fatcat:rbywt5p7uzhhzg3hbc7tnln45q

Table of contents

2021 IEEE Transactions on Wireless Communications  
Dileep Kumar, Jarkko Kaleva, and Antti Tölli Resource Allocation for Multi-Cell IRS-Aided NOMA Networks ............................................................. ...................................  ...  Connectivity .................................... ..4238 4282 4296 4313 4328 4347 4364 4379 4392 4406 4420 Double-IRS Assisted Multi-User MIMO: Cooperative Passive Beamforming  ... 
doi:10.1109/twc.2021.3087933 fatcat:3h6tt6tz3ncn3o2m3yg4ohoom4

2021 Index IEEE Transactions on Wireless Communications Vol. 20

2021 IEEE Transactions on Wireless Communications  
The Author Index contains the primary entry for each item, listed under the first author's name.  ...  ., +, TWC Dec. 2021 8381-8392 Wideband Channel Estimation for IRS-Aided Systems in the Face of Beam Squint.  ...  ., +, TWC Aug. 2021 5389-5407 Resource Allocation for Multi-Cell IRS-Aided NOMA Networks.  ... 
doi:10.1109/twc.2021.3135649 fatcat:bgd3vzb7pbee7jp75dnbucihmq

Table of Contents

2022 IEEE Wireless Communications Letters  
Mohammad Reza Ghavidel Aghdam, Behzad Mozaffari Tazehkand, and Reza Abdolee 938 Placement Optimization for Multi-IRS-Aided Wireless Communications: An Adaptive Differential Evolution Algorithm . . . .  ...  Shun Wang, Lei Zhou, Weichao Xu, and Jisheng Dai 987 Throughput Maximization for Active Intelligent Reflecting Surface-Aided Wireless Powered Communications . . . . .  ... 
doi:10.1109/lwc.2022.3168415 fatcat:ko3oycfhxrct3pj327rkfi5qye

Table of Contents

2019 IEEE Transactions on Vehicular Technology  
Chen 525 Outage Effective Capacity of Buffer-Aided Diamond Relay Systems Using HARQ-IR . . . . . . . . . . . . . . . . . . . . . . . D.  ...  Jha 405 Energy Efficiency of Proactive Cooperative Eavesdropping Over Multiple Suspicious Communication Links . . . . . . . . . .  ... 
doi:10.1109/tvt.2018.2886945 fatcat:2ld6o7rwfnbe5ag27vlbtem4pq

Table of Contents

2022 IEEE Wireless Communications Letters  
Iman Valiulahi, Christos Masouros, Abdelhamid Salem, and Fan Liu 741 Robust Beamforming Design for IRS-Aided Secure SWIPT Terahertz Systems With Non-Linear EH Model . . . . . . . . . . . . . . . . . .  ...  Tao Zhou, Kui Xu, Zhexian Shen, Wei Xie, Dongmei Zhang, and Jianhui Xu 761 Asynchronous Transmission for Cooperative Free-Space Optical Communication System . . . . . . . . . . . . . . . . . . . . . .  ... 
doi:10.1109/lwc.2022.3162004 fatcat:lshdu3nzt5fcpnpgrxsmv4olue

A review on intelligent reflecting surface-based terahertz communication

Arpita Patel, Aasheesh Shukla
2022 Indonesian Journal of Electrical Engineering and Computer Science  
In this paper, the role of IRS in conjunction with the THz communication has been discussed. Further, challenges and research directions of IRS for terahertz communication are also discussed.</span>  ...  <span>Terahertz (THz)-band communications can be considered as the new frontline for future-generation wireless communication systems as it has a wider bandwidth in comparison to microwave and mmwave communications  ...  We can say that upcoming years will have more study for the IRS aided THz communication to shape next generation communications.  ... 
doi:10.11591/ijeecs.v25.i3.pp1580-1588 fatcat:pk2dodhvxveofouyieejlswemq
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