Energy Efficient Optimization for CC-HARQ Over Block Rayleigh Fading Channels

被引:16
作者
Ge, Songhu [1 ]
Xi, Yong [1 ]
Zhao, Haitao [1 ]
Huang, Shengchun [1 ]
Wei, Jibo [1 ]
机构
[1] Natl Univ Def Technol, Sch Elect Sci & Engn, Changsha 410073, Hunan, Peoples R China
基金
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词
Cross-layer design; HARQ; energy efficiency; spectral efficiency; ARQ; THROUGHPUT; TRADEOFF;
D O I
10.1109/LCOMM.2015.2463278
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
In this letter, the energy efficiency (EE) of Chase combining based hybrid automatic repeat request (CC-HARQ) over block Rayleigh fading channels is analyzed and optimized from a cross-layer perspective. Specifically, we derive the EE of CC-HARQ in a tractable closed-form expression using a new log-domain linear threshold approximation method. Then the optimum payload length and average transmission energy per bit are identified to maximize the EE. In addition, to achieve a flexible tradeoff between EE and spectral efficiency (SE), the unified EE-SE tradeoff metric is introduced and optimized. The analytical and simulation results verify the effectiveness of our design.
引用
收藏
页码:1854 / 1857
页数:4
相关论文
共 9 条
[1]   Numerical evaluation of the Lambert W function and application to generation of generalized Gaussian noise with exponent 1/2 [J].
Chapeau-Blondeau, F ;
Monir, A .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2002, 50 (09) :2160-2165
[2]   A Unified Energy Efficiency and Spectral Efficiency Tradeoff Metric in Wireless Networks [J].
Deng, Lei ;
Rui, Yun ;
Cheng, Peng ;
Zhang, Jun ;
Zhang, Q. T. ;
Li, Mingqi .
IEEE COMMUNICATIONS LETTERS, 2013, 17 (01) :55-58
[3]  
Gang Wang, 2012, GLOBECOM 2012 - 2012 IEEE Global Communications Conference, P2351, DOI 10.1109/GLOCOM.2012.6503467
[4]   Throughput of HARQ Protocols on a Block Fading Channel [J].
Lagrange, Xavier .
IEEE COMMUNICATIONS LETTERS, 2010, 14 (03) :257-259
[5]   On the Throughput and Optimal Packet Length of an Uncoded ARQ System over Slow Rayleigh Fading Channels [J].
Liu, ShaoYang ;
Wu, XiaoHe ;
Xi, Yong ;
Wei, JiBo .
IEEE COMMUNICATIONS LETTERS, 2012, 16 (08) :1173-1175
[6]   Energy Efficiency of Non-Collaborative and Collaborative Hybrid-ARQ Protocols [J].
Stanojev, Igor ;
Simeone, Osvaldo ;
Bar-Ness, Y. ;
Kim, Dong Ho .
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2009, 8 (01) :326-335
[7]   Optimal Power Assignment for Minimizing the Average Total Transmission Power in Hybrid-ARQ Rayleigh Fading Links [J].
Su, Weifeng ;
Lee, Sangkook ;
Pados, Dimitris A. ;
Matyjas, John D. .
IEEE TRANSACTIONS ON COMMUNICATIONS, 2011, 59 (07) :1867-1877
[8]   Energy Efficiency and Spectral Efficiency Tradeoff in Type-I ARQ Systems [J].
Wu, Jingxian ;
Wang, Gang ;
Zheng, Yahong Rosa .
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2014, 32 (02) :356-366
[9]   A General Upper Bound to Evaluate Packet Error Rate over Quasi-Static Fading Channels [J].
Xi, Yong ;
Burr, Alister ;
Wei, JiBo ;
Grace, David .
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2011, 10 (05) :1373-1377