Power Allocation in Decode-and-Forward Cooperative OFDM Systems Using Perfect and Limited Feedback

被引：0
|
作者：
Zhang Guangchi [1 ]
Zhan Weixu [2 ]
Qin Jiayin [3 ]
机构：
[1] Guangdong Univ Technol, Fac Informat Engn, Guangzhou 510006, Guangdong, Peoples R China
[2] Informat Ctr Guangdong Power Grid, Guangzhou 510600, Guangdong, Peoples R China
[3] Sun Yat Sen Univ, Sch Informat Sci & Technol, Guangzhou 510275, Guangdong, Peoples R China
来源：
CHINESE JOURNAL OF ELECTRONICS | 2010年 / 19卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Cooperative communication; Orthogonal frequency division multiplexing (OFDM); Power allocation; Channel state information (CSI); Limited feedback; NETWORKS;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
To maximize the spectral efficiency of a Decode-and-forward (DF) cooperative Orthogonal frequency division multiplexing (OFDM) system, we first propose the optimal power allocation algorithm when perfect Channel state information (CSI) feedback is available. Since perfect CSI feedback is unrealistic, we further propose a power allocation scheme using limited feedback, where the power allocation vectors for the source and relay are limited in two finite power allocation tables respectively. In this scheme, the destination chooses the power allocation vectors for the source and relay, and feeds the indices of the vectors back. The power allocation tables are designed by using the Lloyd algorithm. Simulation results show that the perfect CSI feedback power allocation scheme achieves the best performance, and that the performance of the limited feedback scheme lies between the perfect CSI scheme and the scheme with no CSI.
引用
收藏
页码：291 / 295
页数：5
相关论文
共 50 条
  • [31] An efficient algorithm for optimum power allocation in a decode-and-forward cooperative system with orthogonal transmissions
    Anghel, Paul A.
    Kaveh, Mostafa
    Luo, Zhi-Quan
    2006 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, VOLS 1-13, 2006, : 4355 - 4358
  • [32] QoS-Driven Jointly Optimal Subcarrier Pairing and Power Allocation for Decode-and-Forward OFDM Relay Systems
    Gaofei Huang
    Liping Luo
    Guangchi Zhang
    Ping Yang
    Dong Tang
    Jiayin Qin
    Wireless Personal Communications, 2013, 71 : 1597 - 1618
  • [33] Power Allocation for Decode-and-Forward Relay in Gateway Channels
    Im, Yeohee
    Lee, Jung Hoon
    Choi, Wan
    IEEE TRANSACTIONS ON COMMUNICATIONS, 2015, 63 (09) : 3170 - 3182
  • [34] Optimal Power Allocation Algorithm for OFDM-Based Decode-and-Forward Dual-Hop Cognitive Systems
    Shaat, Musbah
    Bader, F.
    2011 IEEE 73RD VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING), 2011,
  • [35] QoS-Driven Jointly Optimal Subcarrier Pairing and Power Allocation for Decode-and-Forward OFDM Relay Systems
    Huang, Gaofei
    Luo, Liping
    Zhang, Guangchi
    Yang, Ping
    Tang, Dong
    Qin, Jiayin
    WIRELESS PERSONAL COMMUNICATIONS, 2013, 71 (03) : 1597 - 1618
  • [36] On the power allocation for decode-and-forward cooperative transmission over Rayleigh-fading channels
    Zhao, Lian
    Liao, Zaiyi
    2007 IEEE 66TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, 2007, : 1669 - 1673
  • [37] Joint power allocation and relay selection for decode-and-forward cooperative relay in secure communication
    YANG Yunchuan
    ZHAO Hui
    SUN Cong
    WANG Wenbo
    TheJournalofChinaUniversitiesofPostsandTelecommunications, 2013, 20 (02) : 79 - 85
  • [38] Outage performance and power allocation for decode-and-forward relaying and cooperative jamming for the wiretap channel
    School of Electrical Engineering, ACCESS Linnaeus Center, Royal Institute of Technology , SE-100 44 Stockholm, Sweden
    IEEE Int Conf Commun, 2011,
  • [39] Optimal Power Allocation for Decode-and-Forward Cooperative Diversity Under an Outage Performance Constraint
    Tsai, Yuh-Ren
    Lin, Li-Cheng
    IEEE COMMUNICATIONS LETTERS, 2010, 14 (10) : 945 - 947
  • [40] Joint power allocation and relay selection for decode-and-forward cooperative relay in secure communication
    YANG Yun-chuan
    ZHAO Hui
    SUN Cong
    WANG Wen-bo
    The Journal of China Universities of Posts and Telecommunications, 2013, (02) : 79 - 85
12345