基于预测和优先级的时隙调度策略

J4 ›› 2009, Vol. 27 ›› Issue (01): 12-0016.

基于预测和优先级的时隙调度策略

刘仙灵,张勇,戴超,毛安峰,宋梅

北京邮电大学电子工程学院,北京 100876

出版日期:2009-01-20 发布日期:2009-07-02
通讯作者: 刘仙灵(1985—〓),男,湖北嘉鱼人,北京邮电大学硕士研究生,主要从事微电子学与固体电子学研究 E-mail:liuxianling99999@gmail.com
基金资助:
国家863高科技计划基金资助项目(2007AA01Z226);中瑞国家国际科技合作计划基金资助项目（2008DFA12090）

Slot-Scheduling Mechanism Based on Prediction and Priority

LIU Xian-ling, ZHANG Yong, DAI Chao, MAO An-feng, SONG Mei

College of Electronic Engineering, Beijing University of Post and Telecommunication, Beijing 100876,China

Online:2009-01-20 Published:2009-07-02

摘要/Abstract

摘要：

为了提高数据传输的有效性和可靠性,针对不同业务的不同QoS(Quality of Service)要求,提出了一种基于预测和优先级的IEEE 802.16时隙调度策略。根据不同业务的不同优先级,预留出时隙,优先将时隙分配给优先权高的业务使用,以满足不同业务的不同QoS需求;同时对SS发出请求和BS响应请求时间段到达的数据进行预测,进一步优化时隙调度策略,改善时延特性。仿真结果验证了其有效性。

关键词: WiMAX 预测, 优先级, 时隙调度, NS2软件

Abstract:

In order to improve the efficiency and reliability of the data transmission and satisfy the different QoS(Quality of Service) requirements. A kind of slot-scheduling mechanism is introduced which is based on prediction and priority in IEEE 80216 Mesh mode: According to different priority of different service, slots are reserved for high priority service to meet different QoS; at the same time it predict the data quantity coming between the time SS sending messages and the time BS granting messages, so that it can improve the scheduling mechanism, and improve the characteristic of delay.

Key words: WiMAX forecast, priority, slot-scheduling, network simulator NS2

中图分类号:

TN912

刘仙灵,张勇,戴超,毛安峰,宋梅. 基于预测和优先级的时隙调度策略[J]. J4, 2009, 27(01): 12-0016.

LIU Xian-ling, ZHANG Yong, DAI Chao, MAO An-feng, SONG Mei. Slot-Scheduling Mechanism Based on Prediction and Priority[J]. J4, 2009, 27(01): 12-0016.

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