A multipath source self repair routing (MSSRR) algorithm for mobile ad hoc networks is proposed. By using multiple paths which can be repaired by themselves to transmit packets alternately, the network's load is b...A multipath source self repair routing (MSSRR) algorithm for mobile ad hoc networks is proposed. By using multiple paths which can be repaired by themselves to transmit packets alternately, the network's load is balanced, the link state in the network can be checked in time, the number of the times the route discovery mechanism starts is decreased. If only one route which will be broken can be used to transmit the packets, the route discovery mechanism is restarted.The algorithm is implemented on the basis of dynamic source routing (DSR). The effect of MSSRR on lifetime of the access from the source to the destination and the overhead is discussed. Compared with the performance of DSR,it can be seen that the algorithm can improve the performance of the network obviously and the overhead almost does not increase if the average hop count is larger.展开更多
Ad hoc网络的自组织、动态拓扑和无线接入等特点使得路由的安全问题日益突出。提出了一种在保证安全前提下允许中间节点返回路由应答报文的安全DSR路由协议。该协议对原有的信任机制进行了改进。仿真结果表明该协议可以有效防止路由信...Ad hoc网络的自组织、动态拓扑和无线接入等特点使得路由的安全问题日益突出。提出了一种在保证安全前提下允许中间节点返回路由应答报文的安全DSR路由协议。该协议对原有的信任机制进行了改进。仿真结果表明该协议可以有效防止路由信息伪装、篡改、路由重放以及黑洞攻击,可以缓解因恶意节点和自私节点拒绝网络服务或者网络环境变化造成的路由再发现问题。展开更多
文摘A multipath source self repair routing (MSSRR) algorithm for mobile ad hoc networks is proposed. By using multiple paths which can be repaired by themselves to transmit packets alternately, the network's load is balanced, the link state in the network can be checked in time, the number of the times the route discovery mechanism starts is decreased. If only one route which will be broken can be used to transmit the packets, the route discovery mechanism is restarted.The algorithm is implemented on the basis of dynamic source routing (DSR). The effect of MSSRR on lifetime of the access from the source to the destination and the overhead is discussed. Compared with the performance of DSR,it can be seen that the algorithm can improve the performance of the network obviously and the overhead almost does not increase if the average hop count is larger.
