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针对移动自组织网络QoS路由开销大的问题,研究了一个基于位置信息的路由消息转发方法,该方法可降低路由开销并提高路由成功率.在此基础上提出了一种路径优化的基于位置信息的QoS路由算法ODLAQR.不同于利用位置信息的路由算法,ODLAQR算法将路由消息转发域进一步分为Green区和Yellow区两个不同的区域,处在不同区域的节点采用不同的路由消息转发策略,最终根据费用选择最优路径传输数据分组.ns2仿真结果表明,和一些QoS路由算法相比,ODLAQR算法能够以较小的路由开销取得较高的路由成功率.
Aiming at the problem of large QoS routing cost in mobile ad hoc networks, a routing information forwarding method based on location information is studied, which can reduce the routing overhead and increase the routing success rate.On the basis of this, a path optimization based location information ODLAQR algorithm is different from the routing algorithm using location information. ODLAQR algorithm further divides the routing message forwarding domain into two different areas, Green and Yellow. Different nodes in different areas adopt different routing message forwarding strategies, Finally, the data packets are selected according to the cost and the optimal path is selected.ns2 simulation results show that, compared with some QoS routing algorithms, ODLAQR algorithm can achieve higher routing success rate with less routing overhead.