| Publisher | Harvard University | ||
|---|---|---|---|
| Format | 188.7KB PDF | Date added | 17 Sep 2000 |
| Topics | Software Engineering, Mobile - Wireless Communications, Wireless | ||
| Downloads | 332 | ||
This paper presents Greedy Perimeter Stateless Routing (GPSR), a novel routing protocol for wireless datagram networks that uses the positions of routers and a packet's destination to make packet forwarding decisions. GPSR makes greedy forwarding decisions using only information about a router's immediate neighbors in the network topology. When a packet reaches a region where greedy forwarding is impossible, the algorithm recovers by routing around the perimeter of the region. By keeping state only about the local topology, GPSR scales better in per-router state than shortest-path and ad-hoc routing protocols as the number of network destinations increases. Under mobility's frequent topology changes, GPSR can use local topology information to find correct new routes quickly.
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