一种QoS保证的WMSNs实时路由协议

摘要

In order to satisfy the real-time transmission of data for wireless multimedia sensor networks( WMSNs) ,a real-time routing protocol of the wireless multimedia sensor networks based on QoS (WMSNRR) is proposed. In the process of routing, WMSNRR fully consider the relaying rate and the surplus energy of two-hop node. At the same time, it also adopted differentiated service in congestion control, which is based on the queue length of cache and the data rate of receiving and sending. The simulation results indicate that WMSNRR is better than SPEED in prolonging network life and reducing network average delay when the node was distributed in non-uniform area.%为了满足无线多媒体传感器网络(WMSNs)对数据的实时性要求,本文提出了一种QoS保证的WMSNs实时路由协议(WMSNRR).该协议在路由选择时,充分考虑两跳节点的转播速率及剩余能量等信息.同时,还采用了一种基于缓存队列长度和节点收发数据率的控制方法,区分业务进行拥塞控制.仿真结果表明,在节点非均匀分布的情况下,该协议在延长网络生存周期、降低网络平均延迟等方面,均有较好的表现.