Abstract: With the increasing use of real-time multimedia service in wireless communication networks，it is necessary to provide QoS guarantee for Ad Hoc networks.QoS routing is so important to do it and bandwidth guarantee is one of the most necessary requirements，so this paper presents a distributed QoS routing protocol based on TDMA and bandwidth requirement.This QoS routing protocol makes use of heuristic algorithm to calculate route bandwidth.The simulation results indicate the QoS routing protocol improves the network performance and satisfies the route requirement for Ad Hoc networks.

摘要： 随着多媒体应用的普及，服务质量（Quality of Service，QoS）保证已逐渐成为Ad Hoc网络必须支持的一项重要功能，QoS 路由对实现Qos保证起着非常重要的作用，而带宽又是QoS保证的最重要参数之一，因此提出了一种基于TDMA的带宽约束的Ad Hoc网络QoS按需路由协议。该协议采用了启发式的带宽计算算法。仿真结果验证了协议的有效性，表明该QoS路由协议具有较好的端到端性能，可以满足Ad Hoc网络的路由需求。