Path Stability Mechanism in Mobility based AOMDV for MANETS

Abstract

Mobile Ad hoc Networks (MANETs) are used for providing Quality of Service (QoS) where nodes are having mobility and can travel in any random direction. There are several reactive protocols (DSDV, AODV, EBAODV, etc.) available in literatures which are suitable for MANETs based on single and multiple paths. Among these, AOMDV protocol is the most suitable for finding multiple paths to the destination. However, in its basic version does not consider mobility of intermediate nodes which causes packet loss in traveling. In this work to enhance the path stability, mobility of an intermediate node and exclude the selection of high mobility node is introduced. Mobility of nodes is calculated by using RREQ packet retransmission strategy. The intermediate results are stored in routing table and this information is forwarded to source node for path selection process. Finally, intermediate node having least mobility is selected by the source for data packet transmission towards destination. For this we used AOMDV protocol with three different mobility models (Random way point, Random Walk, and Gauss Markov). All the models are investigated using network simulator and their comparisons are presented and found satisfactory. General TermsMobile Ad hoc Networks, AOMDV, Routing.

Effective Maintenance of Path Stability Using ACO-PLF Mechanism in MANETs

“…End-to-end delay denotes to the time-taken for a packet to be communicated across a network from source-to-destination, given in Eq. (7).…”

“…The identification of mobility of mobile nodes can be tackled by retransmission strategy. The AOMDV protocol does not provide better results in case of throughput and control packet overhead [7]. The multipath choice is done by utilizing three unique schemes called short-multipath, stable-multipath and short-stable multipath.…”