CAJ | 학술논문

针对移动自组网因单向链路以及盲目转播网关发现分组而造成的与Internet互联性能下降,提出了一种增强型互联方案.同时结合了先应和后应网关发现策略优点的混合网关发现策略被用来获取良好的Internet连接并保持低开销.而通过交换携带有额外增加的对称邻居节点列表和非对称邻居节点列表字段的AODV hello分组,单向链路得以从路由计算中予以清除而广播风暴也同时得到抑制.基于ns-2的仿真结果表明此改进型Internet连接方案在单向链路数量及节点移动速度均变化的应用环境下能取得较其他方案为优的互联性能.
침대이동자조망인단향련로이급맹목전파망관발현분조이조성적여Internet호련성능하강,제출료일충증강형호련방안.동시결합료선응화후응망관발현책략우점적혼합망관발현책략피용래획취량호적Internet련접병보지저개소.이통과교환휴대유액외증가적대칭린거절점렬표화비대칭린거절점렬표자단적AODV hello분조,단향련로득이종로유계산중여이청제이엄파풍폭야동시득도억제.기우ns-2적방진결과표명차개진형Internet련접방안재단향련로수량급절점이동속도균변화적응용배경하능취득교기타방안위우적호련성능.
An improved internetworking approach is proposed to enhance the Internet connectivity which is deteriorated due to unidirectional links and blind rebroadcasting of gateway discovery packets for mobile ad hoc networks.The hybrid gateway discovery scheme that combined the advantages of a proactive and reactive gateway discovery approach is used to achieve high connectivity while keeping overhead costs low.By exchanging ad hoc on-demand distance vector (AODV) hello packet which includes additional fields named symmetric neighbor list and asymmetric neighbor list,unidirectional links are removed from route computation and broadcast storm can also be relieved simultaneously.Performance results using ns-2 simulations,under varying numbers of unidirectional links and node speeds,show that this improved Internet connectivity approach can provide better performance than others.