Adaptive Mechanisms to Enhance Internet Connectivity for Mobile Ad Hoc Networks
There is being an on-going effort in the research community to efficiently interconnect Mobile Ad hoc Networks to fixed IP networks. Each of existing interconnectivity approaches is suited only for a limited range of network conditions and its performance can be degraded by obvious unidirectional links and the broadcast storm during ad hoc nodes discovery available Internet gateways. In this paper, an internetworking algorithm with adaptive mechanisms has been proposed to enhance Internet connectivity. Firstly, through exchanging hello packets with additional symmetric neighbor list and asymmetric neighbor list, unidirectional links are removed from route computations and redundant rebroadcasts of broadcast packets are inhibited simultaneously. Secondly, based on the dynamic adjustment of the scope of flooding gateway advertisements as well as the frequency of broadcasting hello packets according to the network conditions change, a lot of unnecessary overheads are avoided. Results using ns-2 simulation show this adaptive Internet connectivity approach can provide better performance than others.
mobile ad hoc networks Internet connectivity unidirectional links broadcast storm adaptive mechanism
Shen Bin Ke Haiyan Hu zhonggong
School of Electrical and Information Engineering,Wuhan Institute of Technology,Wuhan,China,430073;De School of Electrical and Information Engineering,Wuhan Institute of Technology,Wuhan,China,430073
国际会议
武汉
英文
2006-09-01（万方平台首次上网日期，不代表论文的发表时间）