Joint power allocation and subcarrier pairing in OFDM-based cooperative relaying system

被引：0
|
作者：
DAI Cui-qin
机构：
来源：
The Journal of China Universities of Posts and Telecommunications | 2012年 / 01期
基金：
中国国家自然科学基金; 国科技部“十一五”科技计划项目;
关键词：
OFDM; DF relaying; power allocation; SP; MR-SP&PA;
D O I：
暂无
中图分类号：
TN919.3 [数据传输技术]; TN925 [无线电中继通信、微波通信];
学科分类号：
080402 ; 080904 ; 0810 ; 081001 ;
摘要：
This paper proposes rate-maximized (MR) joint subcarrier pairing (SP) and power allocation (PA) (MR-SP&PA),a novel scheme for maximizing the weighted sum rate of the orthogonal-frequency-division multiplexing (OFDM) relaying system with a decode-and-forward (DF) relay.MR-SP&PA is based on the joint optimization of both SP and power allocation with total power constraint,and formulated as a mixed integer programming problem in the paper.The programming problem is then transformed to a convex optimization problem by using continuous relaxation,and solved in the Lagrangian dual domain.Simulation results show that MR-SP&PA can maximize the weighted sum rate under total power constraint and outperform equal power allocation (EPA) and proportion power allocation (PCG).
引用
收藏
页码：24 / 30
页数：7
相关论文
共 50 条
  • [1] Joint power allocation and subcarrier pairing in OFDM-based cooperative relaying system
    Dai, Cui-Qin
    Zhao, Xiao-Yu
    Zhang, Zu-Fan
    [J]. Journal of China Universities of Posts and Telecommunications, 2012, 19 (01): : 24 - 30
  • [2] Joint power allocation and subcarrier pairing in OFDM-based cooperative relaying system
    DAI CuiqinZHAO XiaoyuZHANG Zufan Chongqing Key Lab of Mobile Communication TechnologyChongqing University of Posts and TelecommunicationsChongqing China
    [J]. The Journal of China Universities of Posts and Telecommunications, 2012, 19 (01) : 24 - 30
  • [3] Power allocation and subcarrier pairing in OFDM-based relaying networks
    Li, Yong
    Wang, Wenbo
    Kong, Jia
    Hong, Wei
    Zhang, Xing
    Peng, Mugen
    [J]. 2008 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, PROCEEDINGS, VOLS 1-13, 2008, : 2602 - 2606
  • [4] Joint Relay Selection, Subcarrier Pairing and Power Allocation for OFDM-Based Cooperative Networks
    Yang, Wendong
    Cai, Yueming
    Kang, Guoqin
    [J]. 2013 INTERNATIONAL CONFERENCE ON INFORMATION SCIENCE AND TECHNOLOGY (ICIST), 2013, : 1272 - 1276
  • [5] Power Allocation and Subcarrier Pairing for OFDM-Based AF Cooperative Diversity Systems
    Shen Zhenhui
    Wang Xiaoxiang
    Zhang Hongtao
    [J]. 2009 IEEE VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, 2009, : 2968 - 2972
  • [6] Optimally Joint Subcarrier Pairing and Power Allocation for OFDM System with Multihop Symbol Level DF Relaying
    Wang, Ning
    Miao, Tingting
    Yang, Hongwen
    [J]. IEICE TRANSACTIONS ON COMMUNICATIONS, 2014, E97B (12) : 2800 - 2808
  • [7] Joint Subcarrier Pairing and Power Allocation for OFDM Transmission With Decode-and-Forward Relaying
    Hsu, Chih-Ning
    Su, Hsuan-Jung
    Lin, Pin-Hsun
    [J]. IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2011, 59 (01) : 399 - 414
  • [8] Joint Optimization Scheme for Power Allocation and Subcarrier Pairing in OFDM-Based Multi-Relay Networks
    Zhou, Zhikang
    Zhu, Qi
    [J]. IEEE COMMUNICATIONS LETTERS, 2014, 18 (06) : 1039 - 1042
  • [9] Subcarrier Power Allocation in OFDM-Based Dual-Hop Systems with AF Relaying
    Huang, Wei-Chieh
    Lee, Kuan-Chou
    Li, Chih-Peng
    Li, Hsueh-Jyh
    [J]. IEICE TRANSACTIONS ON COMMUNICATIONS, 2010, E93B (11) : 3184 - 3188
  • [10] Cooperative Subcarrier Allocation and Power Allocation in the Downlink of an Amplify-and-Forward OFDM Relaying System
    Rasouli, H.
    Kong, H. Y.
    Anpalagan, A.
    [J]. WIRELESS PERSONAL COMMUNICATIONS, 2014, 79 (03) : 2271 - 2290
12345