Resource allocation algorithm with cross-layer design for DiffServ-based OFDM systems
作者: Xiao-hui LIMing HANKe-chu YIBin TIAN
作者单位: 1Key Laboratory of Integrated Services Networks, Xidian University, Xi'an 710071, China
刊名: The Journal of China Universities of Posts and Telecommunications, 2007, Vol.14 (2), pp.45-50
来源数据库: Elsevier Journal
DOI: 10.1016/S1005-8885(07)60124-1
关键词: OFDMcross-layerQoSDiffServTN925.9
原始语种摘要: Abstract(#br)According to the quality of service (QoS) requirements of differentiated service (DiffServ), a cross-layer resource allocation algorithm for multi-user orthogonal frequency division multiplexing (OFDM) systems is presented. The constant rate is maintained by adjusting the power dynamically for the voice traffics with high priority, whereas the fairness amongst the data traffics is guaranteed by weighted fairness queued (WFQ) algorithm. The two above-mentioned strategies are used for video traffics to realize variable data rate with the constraint of the minimum rate. Combing all these methods, both the throughput and the fairness are ensured when there are multiple users in the OFDM system. Simulation results indicate the validity of the proposed algorithm, which can work...
全文获取路径: Elsevier  (合作)

  • allocation 分配
  • algorithm 算法
  • systems 系统科学与软件
  • design 设计
  • cross 十字
  • guaranteed 有保证的
  • variable 变量
  • multiplexing 多路传输
  • division 
  • proposed 建议的