Improved System Components for Secure Data Communication in MANETs using Secured DSR

Abstract

Efficient and improved methods of secured route discovery and secured data transmission in Mobile Ad-hoc Networks (MANET) are most recent research issues for ensuring full applicability of deploying MANETs in wide range of applications, including strategic as well as non-strategic. Secured route discovery has been addressed by SRP/SMT, as a generic protocol independent technique for secured route discovery. In DSR the issue of secured route discovery is left to be addressed by other protocols. One such concept has been discussed in the proposal of S-DSR, by integrating SRP features in DSR, to achieve secured and multiple route discovery. S-DSR also proposes steps to achieve high throughput, cache management and sustained bandwidth. In this paper impact of proactive route discovery and periodic route validation (as suggested in S-DSR) on SMT/SSP has been analyzed. Authors of SMT/SSP have proposed algorithms for assigning route rating and survival probability. Our proposal in this paper suggests new techniques for assigning route rating and improving path survival probability. These proposed modifications simplify and enhance the functioning of SMT/SSP in terms of better and efficient cache management and improved path survivability.