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随着多媒体应用的不断发展,在Ad Hoc网络中提供QoS保证具有重要的意义。在研究节点拥塞、节点碰撞等本地信息对QoS路由影响的基础上,提出了一种在Ad Hoc网络中提供QoS保证的路由协议——基于本地信息的QoS-aware多径路由协议QAMR。该协议把带宽作为QoS参数,通过引入节点利用因子和路径利用因子来考虑可行路径处理能力问题和对业务的QoS保证。该协议的路由发现和路由维护算法是DSR协议的扩展。通过仿真和对比分析验证了QAMR协议无论在静态网络和动态网络,都具有很好的性能。
With the continuous development of multimedia applications, providing QoS guarantee in Ad Hoc networks is of great significance. Based on the study of the impact of local information such as node congestion and node collision on QoS routing, this paper proposes a QoS-aware routing protocol based on local information, QoS-aware multi-path routing protocol QAMR in Ad Hoc networks. This protocol considers the bandwidth as the QoS parameter and considers the problem of feasible path processing capability and QoS guarantee for the service by introducing the factor of utilization of nodes and path utilization factor. The protocol routing discovery and routing maintenance algorithm is an extension of DSR protocol. Through simulation and comparative analysis, it is verified that the QAMR protocol has good performance in both static network and dynamic network.