摘要
为提高系统吞吐量对指数规则(EXP-rule)调度算法进行了改进。改进的指数规则(WEXP-rule)算法根据各移动用户收发信道质量和业务传输的QoS要求动态调整各用户的业务传输优先级,确定下行共享信道的调度方案。并给出该算法的简化形式SWEXP-rule。仿真结果表明,与传统调度算法相比,SWEXP-rule算法在数据包传输时延受限的条件下具有无线信道利用率高、实现复杂度低等特点。
The EXP-rule scheduling algorithm is proposed for system throughput enhancement.The WEXP-rule algorithm makes packet scheduling scheme in downlink shared channel based on the users＇ priorities,which are dynamically adjusted according to the quality of wireless channel and the QoS requirement of streaming services.Simplified SWEXP-rule is also derived.Simulation results show that the new scheduling algorithm has the benefits of lower complexity,higher wireless channel utilization efficiency under the constraint of transfer delay,compared to the traditional scheduling algorithms.
出处
《山西电子技术》
2008年第5期56-57,共2页
Shanxi Electronic Technology
作者简介
赵树有 男 26岁助理工程师
