Computer Science ›› 2017, Vol. 44 ›› Issue (6): 108-113.doi: 10.11896/j.issn.1002-137X.2017.06.019

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Subcarrier Pairing Strategy for Energy Efficiency Optimization in Cognitive Radio

ZHAO Cheng, HAO Yin-yin, HUA Jing-yu, YAO Xin-wei and WANG Wan-liang   

  • Online:2018-11-13 Published:2018-11-13

Abstract: To improve the energy efficiency in cooperative cognitive radio system,a joint resource allocation algorithm was proposed.Firstly,a heuristic scheme with energy efficiency in priority is considered for subcarrier pairing,QoS and power constraint are satisfied.Then,the power allocation is optimized with the Lagrangian dual algorithm to maximize the system energy efficiency.Simulation results demonstrate a significant enhancement in the energy efficiency and the validity of the proposed algorithm.

Key words: Cognitive radio,Subcarrier pairing,Power allocation,Energy efficiency

[1] WILDEMEERSCH M,QUEK T Q S,SLUMP C H,et al.Cognitive Small Cell Networks:Energy Efficiency and Trade-Offs [J].IEEE Transactions on Communications,2013,1(9):4016-4029.
[2] JUNGNICKEL V,MANOLAKIS K,ZIRWAS W,et al.Therole of small cells,coordinated multipoint,and massive MIMO in 5G [J].IEEE Communications Magazine,2014,52(5):44-51.
[3] REN Z,CHEN S,HU B,et al.Energy-Efficient Resource Allocation in Downlink OFDM Wireless Systems With Proportional Rate Constraints[J].IEEE Transactions on Vehicular Techno-logy,2014,63(5):2139-2150.
[4] FENG L.Multi-hop relay OFDM system based on subcarrier selection pairing and optimal power allocation [J].Computer Science,2015,42(10):92-94.(in Chinese) 冯亮.基于子载波选择配对及功率优化分配的多跳中继系统研究[J].计算机科学,2015,42(10):92-94.
[5] BEDEER E,AMIN O,DOBRE O,et al.Energy-Efficient Power Loading for OFDM-based Cognitive Radio Systems with Channel Uncertainties[J].IEEE Transactions on Vehicular Techno-logy,2015,64:1-1.
[6] YANG F,ZHANG X S,MING Y.Research on Resource Allocation Based on Noncooperation Game for OFDMA-WLAN System [J].Computer Science,2016,3(s1):319-321,347.(in Chinese) 杨帆,张小松,明勇.基于非合作博弈的OFDMA-WLAN系统资源分配算法研究[J].计算机科学,2016,43(s1):319-321,347.
[7] TANG L M,CAO H Y,LI J,et al.Resource Allocation Algorithm for the Downlink of Multi-User OFDM System with Optimized Fairness [J].Telecommunications Science,2015,1(12):58-63.(in Chinese) 汤丽梅,曹海燕,李君,等.优化公平性的多用户OFDM系统下行链路资源分配算法[J].电信科学,2015,31(12):58-63.
[8] CHEN Y,FANG X M,HUANG B.Energy effeciency resource allocation scheme for AF relay downlink system[J].Journal of Communication,2014,35(9):122-132.(in Chinese) 陈煜,方旭明,黄博.AF中继下行链路系统的能效资源分配方案[J].通信学报,2014,35(9):122-132.
[9] XU D,LI Q.Energy efficient joint scheduling and resource allocation for downlink cognitive radio networks[C]∥International Conference on Wireless Communications & Signal Processing.Nanjing:IEEE Press,2015:1-5.
[10] LI Q,XU D.Energy efficient resource allocation for multipleprimary and secondary users in cognitive radio networks with limited primary users’ cooperation[C]∥International Con-ference on Wireless Communications & Signal Processing.Nanjing:IEEE Press,2015:1-5.
[11] ZHOU Z,ZHU Q.Joint energy-efficient power allocation and subcarrier pairing in orthogonal frequency division multiple-based multi-relay networks [J].Iet Communications,2015,9(5):649-657.
[12] TANG M,XIN Y.Energy efficient power allocation in cognitive radio network using coevolution chaotic particle swarm optimization [J].Computer Networks,2016,100:1-11.
[13] LIANG X,ZHU Q.Energy efficient joint power and subcarrier assignment scheme in OFDM relay system [J].Journal of China Universities of Posts & Telecommunications,2015,22(5):56-62.
[14] SHEN Z,ANDREWS J G,EVANS B L.Adaptive resource allocation in multiuser OFDM systems with proportional rate constraints[J].IEEE Transactions on Wireless Communications,2005,4(6):2726-2737.
[15] BOYD,VANDENBERGHE,FAYBUSOVICH.Convex Optimization [J].IEEE Transactions on Automatic Control,2006,1(11):1859-1859.
[16] ZHANG D M,XU Y Y,CAI Y M.Linear Water-Filling Power Allocation Algorithm in OFDMA System[J].Journal of Electro-nics & Information Techology,2007,29(6):1286-1289.(in Chinese) 张冬梅,徐友云,蔡跃明.OFDMA系统中线性注水功率分配算法[J].电子与信息学报,2007,29(6):1286-1289.

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