CACHE ENHANCEMENT IN DYNAMIC SOURCE ROUTING?

On-demand routing protocols use route caches to make routing decisions. Due to mobility, cached routes easily become stale. The main problem in DSR is the bandwidth consumption due to which stale of cache occur and rerouting take place. To address the cache staleness issue, prior work in DSR used heuristics with ad hoc parameters to predict the lifetime of a link or a route. The main purpose of this paper is to provide enhanced routing protocol. In this paper, we enhance the current cache-storage mechanism by attaching some redundant information to the cached paths. This information helps to make a quicker response to some reply request and thus can reduce the average end-to-end latency further. The simulation results have proven the validity of redundant cache in reducing the average end-to-end delay and overall overhead.