子连接有源可重构智能表面辅助的宽带无蜂窝网络能效优化

doi:10.11959/j.issn.1000-436x.2024031

Abstract

Abstract:

In the face of the high power consumption issue caused by the dense deployment of base stations in cell-free networks, a wideband cell-free network system with sub-connected active reconfigurable intelligent surface (RIS) was proposed.Firstly, based on the constraints of maximum power consumption at the active RIS, amplification factor, and maximum power consumption at the base station, a joint precoding design problem for the base station and RIS was formulated to maximize the energy efficiency.To solve the non-convex problem, advanced techniques including alternating optimization, block coordinate descent, Lagrange dual reconstruction, and multidimensional complex quadratic transformation were applied to transform the original problem into multiple sub-problems.By iteratively solving each sub-problem, the solutions of the original problem was ultimately obtained.The simulation results validate the effectiveness of the proposed scheme.

Key words: active reconfigurable intelligent surface, sub-connected architecture, cell-free network, wideband, energy ef-ficiency

CLC Number:

TN92

Gangcan SUN, Shuo WANG, Bing NING, Wanming HAO. Energy efficiency optimization for sub-connected active reconfigurable intelligent surface-assisted wideband cell-free networks[J]. Journal on Communications, 2024, 45(2): 127-136.

Figures/Tables 8

References 23

[1]	HAO W M , LI J J , SUN G C ,et al. Robust security energy efficiency optimization for RIS-aided cell-free networks with multiple eavesdroppers[J]. arXiv Preprint,arXiv:2211.05562, 2022.
[2]	NGUYEN T K , NGUYEN H H , TUAN H D . Max-min QoS power control in generalized cell-free massive MIMO-NOMA with optimal backhaul combining[J]. IEEE Transactions on Vehicular Technology, 2020,69(10): 10949-10964.
[3]	NAYEBI E , ASHIKHMIN A , MARZETTA T L ,et al. Precoding and power optimization in cell-free massive MIMO systems[J]. IEEE Transactions on Wireless Communications, 2017,16(7): 4445-4459.
[4]	RENZO M D , ZAPPONE A , DEBBAH M ,et al. Smart radio environments empowered by reconfigurable intelligent surfaces:how it works,state of research,and the road ahead[J]. IEEE Journal on Selected Areas in Communications, 2020,38(11): 2450-2525.
[5]	ZHENG B X , YOU C S , MEI W D ,et al. A survey on channel estimation and practical passive beamforming design for intelligent reflecting surface aided wireless communications[J]. IEEE Communications Surveys ＆ Tutorials, 2022,24(2): 1035-1071.
[6]	WU Q Q , ZHANG S W , ZHENG B X ,et al. Intelligent reflecting surface-aided wireless communications:a tutorial[J]. IEEE Transactions on Communications, 2021,69(5): 3313-3351.
[7]	SHAO X D , YOU C S , MA W Y ,et al. Target sensing with intelligent reflecting surface:architecture and performance[J]. IEEE Journal on Selected Areas in Communications, 2022,40(7): 2070-2084.
[8]	BASAR E , RENZO M D , ROSNY J D ,et al. Wireless communications through reconfigurable intelligent surfaces[J]. IEEE Access, 2019,7: 116753-116773.
[9]	ZHANG Z J , DAI L L . A joint precoding framework for wideband reconfigurable intelligent surface-aided cell-free network[J]. IEEE Transactions on Signal Processing, 2021,69: 4085-4101.
[10]	HAO W M , LI J J , SUN G C ,et al. Securing reconfigurable intelligent surface-aided cell-free networks[J]. IEEE Transactions on Information Forensics and Security, 2022,17: 3720-3733.
[11]	ZHANG Y T , DI B Y , ZHANG H L ,et al. Beyond cell-free MIMO:energy efficient reconfigurable intelligent surface aided cell-free MIMO communications[J]. IEEE Transactions on Cognitive Communications and Networking, 2021,7(2): 412-426.
[12]	SIDDIQI M Z , MACKENZIE R , HAO M ,et al. On energy efficiency of wideband RIS-aided cell-free network[J]. IEEE Access, 2022,10: 19742-19752.
[13]	ZHANG Z J , DAI L L , CHEN X B ,et al. Active RIS vs.passive RIS:which will prevail in 6G?[J]. IEEE Transactions on Communications, 2023,71(3): 1707-1725.
[14]	LONG R Z , LIANG Y C , PEI Y Y ,et al. Active reconfigurable intelligent surface-aided wireless communications[J]. IEEE Transactions on Wireless Communications, 2021,20(8): 4962-4975.
[15]	WANG Y H , PENG J Y . Energy efficiency fairness of active reconfigurable intelligent surfaces-aided cell-free network[J]. IEEE Access, 2023,11: 5884-5893.
[16]	LYU W T , XIU Y , YANG S J ,et al. Energy-efficient cell-free network assisted by hybrid RISs[J]. IEEE Wireless Communications Letters, 2023,12(4): 718-722.
[17]	ZHANG J D , LI Z Y , ZHANG Z J . Wideband active RISs:architecture,modeling,and beamforming design[J]. IEEE Communications Letters, 2023,27(7): 1899-1903.
[18]	LIU K Z , ZHANG Z J , DAI L L ,et al. Active reconfigurable intelligent surface:fully-connected or sub-connected?[J]. IEEE Communications Letters, 2022,26(1): 167-171.
[19]	ZHU Q , LI M , LIU R ,et al. Joint beamforming designs for active reconfigurable intelligent surface:a sub-connected array architecture[J]. IEEE Transactions on Communications, 2022,70(11): 7628-7643.
[20]	MA Y N , LI M , LIU Y ,et al. Active reconfigurable intelligent surface for energy efficiency in MU-MISO systems[J]. IEEE Transactions on Vehicular Technology, 2023,72(3): 4103-4107.
[21]	SHEN K M , YU W . Fractional programming for communication systems—part I:power control and beamforming[J]. IEEE Transactions on Signal Processing, 2018,66(10): 2616-2630.
[22]	GUIMARAES D A , FLORIANO G H F , CHAVES L S . A tutorial on the CVX system for modeling and solving convex optimization problems[J]. IEEE Latin America Transactions, 2015,13(5): 1228-1257.
[23]	YOU L , XIONG J Y , ZAPPONE A ,et al. Spectral efficiency and energy efficiency tradeoff in massive MIMO downlink transmission with statistical CSIT[J]. IEEE Transactions on Signal Processing, 2020,68: 2645-2659.

Metrics

Recommended 0

No Suggested Reading articles found!

Energy efficiency optimization for sub-connected active reconfigurable intelligent surface-assisted wideband cell-free networks

RichHTML

PDF

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 8

References 23

Related Articles 15

Metrics

Recommended 0

[1]	Zhirui HU, Meihua BI, Fangmin XU, Meilin HE, Changliang ZHENG. APG mergence and topological potential optimization based heuristic user association strategy [J]. Journal on Communications, 2022, 43(6): 98-107.
[2]	Yang ZHANG,Hua PENG,Ke-xian GONG. Multi scale power spectral density subband gradient-based spectrum sensing algorithm and performance analysis [J]. Journal on Communications, 2016, 37(2): 191-198.
[3]	Li LI,Tian-shuang QIU. Novel method for joint parameter estimation based on FPSD in wideband bistatic MIMO radar system [J]. Journal on Communications, 2014, 35(6): 192-199.
[4]	. Novel method for joint parameter estimation based on FPSD in wideband bistatic MIMO radar system [J]. Journal on Communications, 2014, 35(6): 25-199.
[5]	. Gerschgorin disk theorem based spectrum sensing for wideband cognitive radio [J]. Journal on Communications, 2014, 35(4): 1-10.
[6]	Bin SHEN,Shu WANG,Qiong HUANG,Qian-bin CHEN. Gerschgorin disk theorem based spectrum sensing for wideband cognitive radio [J]. Journal on Communications, 2014, 35(4): 1-10.
[7]	. Root-MUSIC-based joint TOA and DOA estimation in IR-UWB [J]. Journal on Communications, 2014, 35(2): 18-145.
[8]	Fang-qiu WANG,Xiao-fei ZHANG,Fei WANG. Root-MUSIC-based joint TOA and DOA estimation in IR-UWB [J]. Journal on Communications, 2014, 35(2): 137-145.
[9]	Xuan ZHOU,Chang-chun BAO,Bing-yin XIA. Combined wideband speech enhancement method based on statistical model and EMD [J]. Journal on Communications, 2013, 34(8): 95-101.
[10]	. Combined wideband speech enhancement method based on statistical model and EMD [J]. Journal on Communications, 2013, 34(8): 13-101.
[11]	Chao CHENG,Zhi-hong QIAN,Chun-lan LI,Xue WANG. Dynamic resource allocation scheme for multiuser OFDM–UWB systems based on user's rate [J]. Journal on Communications, 2012, 33(9): 160-167.
[12]	Ya-fei TIAN,Chen-yang YANG. Performance of multiple-source single-relay ultra-wideband networks based on space-time focusing transmission [J]. Journal on Communications, 2012, 33(3): 20-27.
[13]	Lin ZHENG,Jie-lin FU,Zheng-hong LIU,Hong-bing QIU,Ji-ming LIN. Low-complexity TOA estimation using sawtooth-waveform matching in non-coherent impulse radio systems [J]. Journal on Communications, 2011, 32(5): 33-39.
[14]	Zhan-biao JIA,Hong CHEN. Adaptive pulse waveforms design based on cognitive radio for UWB system [J]. Journal on Communications, 2011, 32(11A): 221-226.
[15]	Wen-jun LV,Hong-bo ZHU. Design and study of ultra-wideband folded loop antennas [J]. Journal on Communications, 2010, 31(2): 76-80.