计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2015年
5期
92-96,115
,共6页
WiMAX Mesh%服务质量(QoS)%协同分布式调度%MAC帧%微时隙
WiMAX Mesh%服務質量(QoS)%協同分佈式調度%MAC幀%微時隙
WiMAX Mesh%복무질량(QoS)%협동분포식조도%MAC정%미시극
WiMAX Mesh%Quality of Service(QoS)%coordinate distributed scheduling%MAC frame%minislot
提出了一种基于资源预留的WiMAX Mesh网络支持QoS的微时隙动态分配算法。通过区分数据流优先级的方式将业务分为高优先级业务和低优先级业务两类，对高优先级的业务在每帧中预留一定的微时隙作为分配高优先级业务的时隙，预留时隙大小可以根据网络时隙使用状态动态地进行调整。仿真表明该算法在满足高优先级业务QoS的同时兼顾业务的请求失败率与时隙的利用率，降低了分组的平均时延。
提齣瞭一種基于資源預留的WiMAX Mesh網絡支持QoS的微時隙動態分配算法。通過區分數據流優先級的方式將業務分為高優先級業務和低優先級業務兩類，對高優先級的業務在每幀中預留一定的微時隙作為分配高優先級業務的時隙，預留時隙大小可以根據網絡時隙使用狀態動態地進行調整。倣真錶明該算法在滿足高優先級業務QoS的同時兼顧業務的請求失敗率與時隙的利用率，降低瞭分組的平均時延。
제출료일충기우자원예류적WiMAX Mesh망락지지QoS적미시극동태분배산법。통과구분수거류우선급적방식장업무분위고우선급업무화저우선급업무량류，대고우선급적업무재매정중예류일정적미시극작위분배고우선급업무적시극，예류시극대소가이근거망락시극사용상태동태지진행조정。방진표명해산법재만족고우선급업무QoS적동시겸고업무적청구실패솔여시극적이용솔，강저료분조적평균시연。
A minislot allocation algorithm based on resource reservation is proposed for distributed scheduling on WiMAX mode. The algorithm categorizes the service data into high-priority and low-priority groups. A proper number minislots are reserved in each frame for high-priority services. The size of the reserved minislot can be adjusted in real time according to the network congestion status. The advantages are that the QoS of high-priority service data is guaran-teed, the service failure rate and the minislot utilization rate can also be assured. The simulation results show that this algo-rithm has better performance in the minislot utilization rate and the delay compared with several known minislot reserva-tion algorithms.
