CAJ | 학술논문

提出了一种避免路径丢失的按需多径路由协议(CP_AOMDV)。CP_AOMDV通过建立链路相关的反向辅助路径机制,避免了AOMDV中RREP消息在向源节点转发时的丢失,从而解决了链路不相关正向路径丢失的问题。同时,为了解决反向路径丢失的问题,CP_AOMDV使源节点收到丢失的RREP消息后,向目的节点回复一个新添加的ACK消息,通知中间节点把链路相关的反向辅助路径修正为链路无关的反向路径,目的节点收到ACK消息后也会把丢失的反向路径补上。仿真结果表明,CP_AOMDV相比AOMDV和OAOMDV在分组投递率、平均时延和路由开销等性能参数的方面均有所改善。
제출료일충피면로경주실적안수다경로유협의(CP_AOMDV)。CP_AOMDV통과건립련로상관적반향보조로경궤제,피면료AOMDV중RREP소식재향원절점전발시적주실,종이해결료련로불상관정향로경주실적문제。동시,위료해결반향로경주실적문제,CP_AOMDV사원절점수도주실적RREP소식후,향목적절점회복일개신첨가적ACK소식,통지중간절점파련로상관적반향보조로경수정위련로무관적반향로경,목적절점수도ACK소식후야회파주실적반향로경보상。방진결과표명,CP_AOMDV상비AOMDV화OAOMDV재분조투체솔、평균시연화로유개소등성능삼수적방면균유소개선。
A Cutoff Prevented Ad-hoc On-demand Multipath Distance Vector ( CP_AOMDV) routing protocol was proposed. To avoid the loss of RREP messages for forwarding to the source node in AOMDV,the CP_AOMDV solves the problem of forward path cutoff by establishing the reverse auxiliary path of link_joint. Meanwhile,the CP_AOMDV makes the source node reply to the destination node with a new ACK message which changes the reverse auxiliary path of link_joint to a link_disjoint reverse path. The results show that it is obviously better than AOMDV and OAOMDV in packet delivery ratio,average delay and routing cost.