中文

Journal of Applied Sciences ›› 2011, Vol. 29 ›› Issue (4): 340-346.doi: 10.3969/j.issn.0255-8297.2011.04.002

• Communication Engineering • Previous Articles     Next Articles

Opportunistic Scheduling with Relay Selection in Wireless Multi-channel Relay Network

ZHAO Chuan-xin1;3, WANG Ru-chuan2;3, HUANG Hai-ping2, SUN Li-juan2   

  1. 1. College of Mathematics and Computer Sciences, Anhui Normal University, Wuhu 241000,
    Anhui Province, China
    2. College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
    3. Institude of Computer Science and Technology, Soochow University, Suzhou 215006, Jiangsu Province, China
  • Received:2010-11-03 Revised:2011-04-24 Online:2011-07-30 Published:2011-07-30
  • About author:赵传信，博士生，研究方向：无线多跳网络，E-mail: zcxonline@126.com；王汝传，教授，博导，研究方向：计算机软件、计算机网络和网格、对等计算、信息安全、无线传感器网络、移动代理等，E-mail: wangrc@njupt.edu.cn
  • Supported by:

    国家自然科学基金(No.60973139, No.61003039, No.61003236)； 江苏省科技支撑计划项目基金(No.BE2010197,
    No.BE2010198)； 国家和江苏省博士后基金(No.20100480048, No.20100471353, No.20100480701, No.1001006B)； 江苏
    高校科技创新计划项目基金(No.CX10B_197Z, No.CX10B-198Z, No.CX10B-199Z, No.CX10B-200Z )；安徽省高校自然科学
    研究基金(No.KJ2011Z137)资助

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Abstract:

Abstract: In this paper we study scheduling for selecting multiple relay nodes in orthogonal frequency division
multiple access (OFDMA) relay network to enhance the system throughput. We propose an opportunistic
scheduling model with relay nodes selection. The aim is to compromise between system throughput and
user fairness with the constraint of channel assignment without interference. We propose two opportunistic
scheduling algorithms in view of route diversity and link diversity, which combine relay selection and channel
assignment to establish user route and optimally select user. Simulations show that the two algorithms can
improve network throughput significantly and ensure user fairness.

Key words: cooperative relaying, orthogonal frequency division multiple access (OFDMA), diversity schedule, relay node selection

CLC Number: