Ripple effect : an improved geographic routing with local connectivity information
Li, Ming 2008, Ripple effect : an improved geographic routing with local connectivity information, in ATNAC 2008 : Proceedings of the 2008 Australasian Telecommunication Networks and Applications Conference, IEEE, Piscataway, N.J., pp. 252-257.
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ATNAC 2008 : Proceedings of the 2008 Australasian Telecommunication Networks and Applications Conference
Australasian Telecommunication Networks and Applications Conference
Place of publication
One of the key challenges in geographic routing is how to deal with dead-ends, where greedy routing fails to find a neighbor node which is closer to the destination. Most existing geographic routing algorithms just switch to the deterministic face routing or limits its face searching range. In this paper, we demonstrate that we can improve routing performance by considering local connectivity status at each node before making routing decision. We present a protocol, Density Ripple Exchange (DRE), that maintains local density information at each node, and a new geographic routing algorithm, Geographic Ripple Routing (GRR), that achieves better routing performance in both hop stretch and transmission stretch than existing geographic routing algorithms by exploiting available connectivity information. Our simulations demonstrate that we increased the performance for GRR over Greedy Perimeter Stateless Routing (GPSR) by about 15%. The cost of this improved performance is a small amount of additional local connectivity information required for our algorithm.
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