计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (23): 9-12.

• 博士论坛 • 上一篇    下一篇

MHWSN中保证混合业务QoS的跨层调度算法

申建芳1,2,程良伦1   

  1. 1.广东工业大学 自动化学院,广州 510006
    2.广东工业大学 计算机学院,广州 510006
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-08-11 发布日期:2011-08-11

Cross-layer scheduling algorithm with guaranteed diverse QoS in MHWSN

SHEN Jianfang1,2,CHENG Lianglun1   

  1. 1.Faculty of Automation,Guangdong University of Technology,Guangzhou 510006,China
    2.Faculty of Computer,Guangdong University of Technology,Guangzhou 510006,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-08-11 Published:2011-08-11

摘要: 针对中高速传感器网络中混合业务QoS(Quality of Service)要求,跨层考虑物理层和数据链路层参数,提出了一种保证混合业务服务质量的调度算法AM-LWDF。该算法同时考虑时延优先级和吞吐量优先级,在满足实时业务QoS约束的前提下,以最大化系统吞吐量为目标建立了相应的优化模型,对实时业务能够满足时延较小的要求,对非实时业务满足吞吐量较大的要求。仿真结果表明,该调度算法可以灵活地在时延和吞吐量之间取得满意的折衷,并保证不同类型业务用户间的公平性。

关键词: 中高速传感器网络, 混合业务, 跨层, 调度算法

Abstract: To efficiently support the diverse Quality of Service(QoS) of hybrid service in middle and high rate sensor networks(MHWSN).A scheduling algorithm named AM-LWDF based on cross-layer optimization is proposed with guaranteed divers QoS in this paper.A mathematical formulation is provided with the goal of maximizing throughput under real-time service QoS constraints considering both the delay priority and throughput priority.It guarantees smaller delay in real-time service and larger throughput in non real-time service.Simulations show that the scheme can achieve compromise between delay and throughput flexibly and guarantee fairness among different user.

Key words: middle and high rate sensor networks, hybrid services, cross-layer, scheduling algorithm