IEEE 802.16d上行链路调度服务优化算法

An Improved Scheduling Algorithm for Uplink Services in IEEE 802.16d

调度算法是宽带无线接入系统为分类业务提供QoS保证的重要手段和工具。本文提出一种用于IEEE802.16d宽带无线接入系统TDD模式下的跨层调度服务的改进算法I_DFPQ。仿真结果表明该算法在各个类型业务流的吞吐量、时延、丢包率和公平性方面相比于同类的其他算法具有更优的性能。

Scheduling algorithm is an important tool to guarantee QoS for classification service in broadband wireless access （BWA）. An improved hierarchical scheduling services algorithm for IEEE 802.16d broadband wireless access systems in TDD mode is proposed. The simulation results show that the proposed algorithm has a better performance than other similar kind of algorithm in terms of throughput, average delay, drop probability and fairness to UGS, rtPS, nrtPS and BE traffic.