Study of the performance of the UPMA protocol applied in multi-hop wireless ad hoc networks
Wen Zhang · Jounal of Xidian University · 2002
Based on the idea of contention reservation access and polling transmission, a modified User dependent Perfect scheduling Multiple Access (UPMA) protocol is presented, which supports both node mobility and multi hop network architecture. It improves channel utilization greatly and guarantees that a node accesses the channel rapidly. By adopting the protocol in multi hop wireless ad hoc network, the network performance of Poisson data traffic is simulated and the related results are given, which show that the modified UPMA protocol has a high throughput, low packet transmission delay and small packet dropping probability.