北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2004, Vol. 27 ›› Issue (5): 15-20.

• 论文 • 上一篇    下一篇

一种基于ACK反馈的多用户分组调度方法

杨鸿文1, 胡曼丽2, 郭文彬1, 杨大成1   

  1. 1.北京邮电大学 电信工程学院, 北京 100876;
    2.中京邮电通信设计院, 北京 100035
  • 收稿日期:2004-05-28 出版日期:2004-05-28
  • 作者简介: 杨鸿文(1964—), 男, 教授. E-mail:yanghong@bupt.edu.cn
  • 基金资助:
    国家高技术研究发展计划项目(2001AA123054)

ACK Based Scheduling Algorithm for 1xEV-DV

YANG Hong-wen1, HU Man-li2, GUO Wen-bin1, YANG Da-cheng1   

  1. 1. Telecomm uni cati on Engineering School, Beijing Univ ersi t y of Pos ts and Telecommu ni cati on s, Beijing 100876, China;
    2. Bei jing Consul ting and Desig n Ins ti tu te of P& T, Bei jing 100035, China
  • Received:2004-05-28 Online:2004-05-28

摘要: 利用自动重传请求(ARQ)的应答(ACK/NAK)和前向信道质量高度相关这个特点,针对1xEV-DV的前向分组数据业务提出了一种新的调度方法。新方法无需反馈信道质量信息(CQI),只基于ACK反馈进行前向分组数据信道(F-PDCH)调度。比之于传统调度方法,新方法省略了信道质量报告信道(R-CQICH),改为要求用户在R-ACKCH上密集发送ACK/NAK信息,此信息除用于混合ARQ操作外,同时用于多用户分组调度。仿真表明,新方法有更好的吞吐量并能满足正比公平准则。

关键词: 1xEV-DV, 调度, 多用户分集, 正比公平

Abstract: Based o n the st ro ng co rrela tion between the ARQ ( automatic repea t request) acknow ledg ement s ( ACK /N AK) a nd the fo rw ard cha nnel quali ty , a nov elscheduling scheme i s propo sed fo r 1xEV-DV forw ard packet data t raf fic. The proposed scheme schedules the forw ard packet da ta channel ( F-PDCH) o nly w ith the ACK /N AK feedbacks, the implicit channel quali ty info rmatio n feedback i s no mo rerequired. Compared to the conv entional desig n, the propo sed scheme replace the cha nnel quali ty informa tion feedback channel ( R-CQ ICH) with dense feedbacks on ARQ acknow ledge channel ( R-ACKCH) . The feedback is used for both Hy brid ARQ o peratio n and the multi-user packet scheduling. Simula tion resul ts indica te that , under the propo rtio nal fairness co nst raint s, the sy stem throughput wi th new alg orithm o utperforms the conv entiona l algo ri thm.

Key words: 1xEV-DV, scheduler, multi-user diversity, proportional fairness

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