CAJ | 학술논문

移动Ad hoc网络中，节点随机移动会引起通信链路频繁断开，从而导致路由失效，带来大量的路由重建与路由发现，耗费了有限的网络资源。传统按需路由中，采用简单的洪泛进行路由发现，路由请求包的盲目转发会带来大量不必要的冗余转发，造成广播风暴问题。此外，大量的数据包同时发送也会对彼此的传输造成干扰，增加数据包冲突概率。针对这种情况，本文提出一种基于干扰和连通度的路由协议，该协议结合节点的连通度和潜在干扰设计转发概率，不仅减少了路由请求包的传播范围，还减少了路由请求包的冲突概率，提高了传输成功率。仿真结果表明，本文设计的方案在减少路由开销的同时，有效提高了数据包投递率，从而提高了路由性能。
이동Ad hoc망락중，절점수궤이동회인기통신련로빈번단개，종이도치로유실효，대래대량적로유중건여로유발현，모비료유한적망락자원。전통안수로유중，채용간단적홍범진행로유발현，로유청구포적맹목전발회대래대량불필요적용여전발，조성엄파풍폭문제。차외，대량적수거포동시발송야회대피차적전수조성간우，증가수거포충돌개솔。침대저충정황，본문제출일충기우간우화련통도적로유협의，해협의결합절점적련통도화잠재간우설계전발개솔，불부감소료로유청구포적전파범위，환감소료로유청구포적충돌개솔，제고료전수성공솔。방진결과표명，본문설계적방안재감소로유개소적동시，유효제고료수거포투체솔，종이제고료로유성능。
In mobile ad hoc networks, random mobility of nodes causes frequent breakages of communication links, leading to route failures and a lot of route reconstructions, thus wasting limited resources. Conventional on-demand routing protocols simply use flooding in the route discovery. The blindly broadcast of route request (RREQ) packets brings a lot of unnecessary forwarding and causes the broadcast storm problem. Moreover, the simultaneous forwarding of packets will interfere the transmission among each other, thus increasing the packet collision probability. Aiming at these problems, we propose a routing protocol based on connectivity and interference, which reduces the forwarding area of RREQ, packet collision probability and increase the successful transmission probability by combining the connectivity of nodes and the underlying interference from other transmitting nodes to design a forwarding probability. Simulation results show that the proposed protocol not only reduces the routing overhead, but also increases the delivery ratio, thus improves the routing performance.