Centralized scheduling contention resolution for wireless metropolitan area networks

LU Wen-yan1; JIA Wei-jia1; WANG Guo-jun1; DU Wen-feng1

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Centralized scheduling contention resolution for wireless metropolitan area networks

更新时间：2024-10-14

- Centralized scheduling contention resolution for wireless metropolitan area networks
- Issue 12, Pages: 83-91(2006)
- 作者机构：
  
  1. 中南大学信息科学与工程学院
  2. 中南大学信息科学与工程学院湖南长沙410083 香港城市大学计算机科学系
  3. 香港九龙
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN925.93
- Published：2006
- 稿件说明：
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LU Wen-yan1, JIA Wei-jia1, WANG Guo-jun1, et al. Centralized scheduling contention resolution for wireless metropolitan area networks[J]. 2006, (12): 83-91.
DOI：

LU Wen-yan1, JIA Wei-jia1, WANG Guo-jun1, et al. Centralized scheduling contention resolution for wireless metropolitan area networks[J]. 2006, (12): 83-91. DOI：

摘要

针对无线城域网PMP模式下的竞争问题

提出了一种中心调度的竞争解决方案CSCR(centralizedschedulingcontentionresolution)。通过对每一时间帧内活动用户站(subscriberstations)数目的预测

基站(basestation)给所有用户站提供了一个优化的竞争窗口

所有用户站都采用该窗口独立地参与竞争。理论分析和模拟结果表明

与IEEE802.16推荐的基于二进制指数回退BEB(binaryexponentialbackoff)算法的方案相比

CSCR方案不但易于实现

而且能更加有效地利用无线资源

同时减少请求接入延时。

Abstract

A novel centralized scheduling contention resolution （CSCR） was presented for the contention problem in PMP model of wireless metropolitan area networks. In each time frame

by estimating the number of active subscriber stations （SSs）

the base station （BS） provides an optimal window to all SSs. Each SS then individually participates with this win-dow in transmission. In comparison with the contention resolution based on truncated binary exponential backoff （BEB） algorithm given by IEEE 802.16

the CSCR resolution is not only easy to be implemented and more efficient in utilizing the transmission opportunities

but also can reduce the delay of admission. This was proved by our theoretical analysis and simulations.

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Related Institution

State Key Laboratory on Microwave and Digital Communications,Tsinghua National Laboratory for Information Science and Technology

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