Optimal solution to adaptive subcarrier-and-bit allocation in multiclass multiuser OFDM system

被引：0
|
作者：
Zhou, Kainan [1 ]
Chew, Yong Huat [1 ]
Wu, Yan [1 ]
机构：
[1] Inst Infocomm Res, 21 Heng Mui Keng Terrace, Singapore 119613, Singapore
来源：
MULTI-CARRIER SPREAD-SPECTRUM | 2006年
关键词：
D O I：
10.1007/1-4020-4437-2_37
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：
Subcarrier-and-bit allocation (SBA) has been extensively investigated in the literature to improve spectral efficiency of multiuser orthogonal frequency division multiplex (OFDM) systems. However, in previous studies, only suboptimal solutions were given and only single-class case was considered. In this paper, a unified analysis of adaptive SBA for multiclass multiuser OFDM system is presented. The constrained power optimization is formulated as a mixed integer nonlinear programming (MINLP) problem. The optimal solution to this problem is derived, i.e., the instantaneous total transmit power is minimized with the quality-of-service (QoS) (data rate and bit error rate) of each class guaranteed. The optimized system performance is compared with both the fixed subcarrier and bit allocation scheme and the rate-adaptive scheme without multiuser diversity. The framework presented in this paper, based on the optimal solution, can be used as a benchmark for future developed heuristic algorithm.
引用
收藏
页码：345 / +
页数：2
相关论文
共 50 条
  • [31] A Computationally Efficient Method for Large Subcarrier Assignment and Bit Allocation Problem of Multiuser OFDM System
    Lin, Shin-Yeu
    Huang, Jung-Shou
    IEICE TRANSACTIONS ON COMMUNICATIONS, 2008, E91B (12) : 3966 - 3973
  • [32] Performance Analysis of Adaptive Subcarrier Allocation Scheme to Support QoS in Multiuser OFDM System
    Yang, Jun Seok
    Park, Sang Kyu
    Kwon, Jae Wook
    2009 18TH ANNUAL WIRELESS AND OPTICAL COMMUNICATIONS CONFERENCE (WOCC 2009), 2009, : 25 - 28
  • [33] Adaptive Subcarrier Allocation in Multiuser OFDM System using Forced Cost Based Decisions
    Munasinghe, Gayan
    Jayalath, Dhammika
    Ziri-Castro, Karla
    2012 IEEE 23RD INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC), 2012, : 1336 - 1341
  • [34] Subcarrier and bit allocation for real-time services in multiuser OFDM systems
    Zhang, GD
    2004 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-7, 2004, : 2985 - 2989
  • [35] A New Joint subcarrier, bit and power, allocation scheme for multiuser ofdm systems
    Afrasiabi, M.
    Nader-Esfahani, S.
    2006 10TH INTERNATIONAL CONFERENCE ON COMMUNICATION TECHNOLOGY, VOLS 1 AND 2, PROCEEDINGS, 2006, : 961 - +
  • [36] Bit and subcarrier allocation for OFDM transmission using adaptive modulation
    Chu, HS
    An, CK
    KORUS 2003: 7TH KOREA-RUSSIA INTERNATIONAL SYMPOSIUM ON SCIENCE AND TECHNOLOGY, VOL 2, PROCEEDINGS: ELECTRICAL ENGINEERING AND INFORMATION TECHNOLOGY, 2003, : 82 - 85
  • [37] Adaptive subcarrier and power allocation for multiuser MIMO-OFDM systems
    Pan, CK
    Cai, YM
    Xu, YY
    ICC 2005: IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5, 2005, : 2631 - 2635
  • [38] Adaptive subcarrier and antenna allocation for multiuser MIMO-OFDM systems
    Ma, Yuehuai
    Cai, Yueming
    Xu, Youyun
    2006 IEEE INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-4, 2006, : 146 - 149
  • [39] DYNAMIC SUBCARRIER AND BIT ALLOCATION FOR THROUGHPUT MAXIMIZATION IN MULTIUSER OFDM SYSTEMS USING ANT COLONY OPTIMAL ALGORITHM
    Song, Jungsup
    Kim, Dong Hoi
    INTERNATIONAL JOURNAL OF INNOVATIVE COMPUTING INFORMATION AND CONTROL, 2010, 6 (10): : 4705 - 4718
  • [40] Resource allocation based on subcarrier exchange in multiuser OFDM system
    Ye Wang
    QinYu Zhang
    NaiTong Zhang
    Science China Information Sciences, 2013, 56 : 1 - 14
12345