一种新的Ad hoc网络中的QoS体系结构

New QoS Architecture for Ad hoc Networks

由于MAC机制本身具有带宽分配的能力,Ad hoc网中的区分服务不能实现理想的业务区分。针对该问题提出了一种新的Ad hoc网络的QoS体系结构D iff-EDCF,它通过把区分服务体系结构和IEEE 802.11eMAC层的EDCF机制相结合的方法来解决上述问题,并且进行了仿真验证。仿真结果表明,把此体系结构应用于Adhoc网络后,业务在任何情况下均能被区分,在特定拓扑下通过调节MAC层参数可以达到理想的吞吐量的比值。

Due to the band allocation ability owned by MAC mechanics, DiffServ in the Ad hoc networks cannot differentiate the services perfectly. Aiming to resolve this problem, this paper presents a new architecture named Diff-EDCF that combines DittServ and IEEE 802. 11 e EDCF mechanism in the Ad hoe networks, and the simulation results indicate that services under any circumstances can be differentiated when Diff-EDCF is introduced to Ad hoc networks and ideal throughput can be obtained when the parameters are modulated.