计算机工程
計算機工程
계산궤공정
COMPUTER ENGINEERING
2010年
5期
86-88
,共3页
赵元韬%杨寿保%滕达%黄彦彬%赫卫卿
趙元韜%楊壽保%滕達%黃彥彬%赫衛卿
조원도%양수보%등체%황언빈%혁위경
WiMAX%Mesh网络%QoS保障%集中式调度%分布式调度
WiMAX%Mesh網絡%QoS保障%集中式調度%分佈式調度
WiMAX%Mesh망락%QoS보장%집중식조도%분포식조도
Worldwide Interoperability of Microwave Access(WiMAX)Mesh network%QoS guarantee%centralized schedule%distributed schedule
在WiMAX Mesh网络中,资源分配可由集中式和分布式2种调度机制完成,但多数QoS研究只针对一种调度机制.针对上述情况,提出结合2种调度机制的QoS保障机制CDCSQ,针对不同的服务采用不同的调度机制以改进QoS,其中,集中式调度用于保证实时服务,分布式调度确保Mesh内部节点的直接通信.模拟结果表明,该机制比IEEE 802.16标准中的服务延迟小.
在WiMAX Mesh網絡中,資源分配可由集中式和分佈式2種調度機製完成,但多數QoS研究隻針對一種調度機製.針對上述情況,提齣結閤2種調度機製的QoS保障機製CDCSQ,針對不同的服務採用不同的調度機製以改進QoS,其中,集中式調度用于保證實時服務,分佈式調度確保Mesh內部節點的直接通信.模擬結果錶明,該機製比IEEE 802.16標準中的服務延遲小.
재WiMAX Mesh망락중,자원분배가유집중식화분포식2충조도궤제완성,단다수QoS연구지침대일충조도궤제.침대상술정황,제출결합2충조도궤제적QoS보장궤제CDCSQ,침대불동적복무채용불동적조도궤제이개진QoS,기중,집중식조도용우보증실시복무,분포식조도학보Mesh내부절점적직접통신.모의결과표명,해궤제비IEEE 802.16표준중적복무연지소.
In Worldwide Interoperability of Microwave Access(WiMAX)Mesh network,resource allocation can be handled by centralized schedule scheme and distributed schedule scheme,but most QoS researches focus on one of the schemes.This paper proposes a QoS guarantee mechanism named CDCSQ(Combined Distributed and Centralized Schedule QoS),which combines the two schedule schemes.QoS iS improved by adopting different schedule schemes for different services.Centralized schedule is used to guarantee real-time services and distributed schedule is used to enable direct communication between two nodes in Mesh network.Simulation results show that the service delay of the mechanism is less than that of IEEE 802.16 standard.
