Location-aided routing (LAR) in mobile ad hoc networks
MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
A performance comparison of multi-hop wireless ad hoc network routing protocols
MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
GPS Query Optimization in Mobile and Wireless Networks
ISCC '01 Proceedings of the Sixth IEEE Symposium on Computers and Communications
A mobility sensitive approach for efficient routing in ad hoc mobile networks
Proceedings of the 9th ACM international symposium on Modeling analysis and simulation of wireless and mobile systems
A mobility aware protocol synthesis for efficient routing in ad hoc mobile networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
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In this paper, we focus upon the distance source routing (DSR) protocol. First, we describe an optimization scheme, which we refer to as GDSR, a reactive protocol that makes use of DSR scheme and the Global positioning system (GPS). As opposed to the DSR protocol GDSR consists of propagating the route request messages only to the nodes that are further away from the query source. Next, we consider a randomized version of both DSR and GDSR algorithms, which we refer to as RDSR and GDSR respectively. We discuss the algorithms, their implementation and present the experimental results we have obtained to study their performance. Our results clearly indicate that the GDSR protocol outperforms the DSR protocol by significantly decreasing the number of route query packets thereby increasing the efficiency of the network load. Our simulations experiments show that GPS screening and randomization paradigm are very effective in improving the performance of DSR under various performance conditions. Our results also indicate that a probabilistic congestion control scheme based on local tuning of protocol parameters is feasible, and that such a mechanism can be effective in reducing the amount of traffic routed through a node which is temporarily congested.