Coping with communication gray zones in IEEE 802.11 b based ad hoc networks
H Lundgren, E Nordströ, C Tschudin - Proceedings of the 5th ACM …, 2002 - dl.acm.org
H Lundgren, E Nordströ, C Tschudin
Proceedings of the 5th ACM international workshop on Wireless mobile multimedia, 2002•dl.acm.orgOur experiments with IEEE 802.11 b based wireless ad hoc networks show that neighbor
sensing with broadcast messages introduces" communication gray zones": in such zones
data messages cannot be exchanged although the HELLO messages indicate neighbor
reachability. This leads to a systematic mismatch between the route state and the real world
connectivity, resulting in disruptive behavior for multi-media data transfer over ad hoc routing
protocols. Concentrating on AODV we explore this issue and evaluate three different …
sensing with broadcast messages introduces" communication gray zones": in such zones
data messages cannot be exchanged although the HELLO messages indicate neighbor
reachability. This leads to a systematic mismatch between the route state and the real world
connectivity, resulting in disruptive behavior for multi-media data transfer over ad hoc routing
protocols. Concentrating on AODV we explore this issue and evaluate three different …
Our experiments with IEEE 802.11b based wireless ad hoc networks show that neighbor sensing with broadcast messages introduces "communication gray zones": in such zones data messages cannot be exchanged although the HELLO messages indicate neighbor reachability. This leads to a systematic mismatch between the route state and the real world connectivity, resulting in disruptive behavior for multi-media data transfer over ad hoc routing protocols. Concentrating on AODV we explore this issue and evaluate three different techniques to overcome the gray zone problem. We present quantitative measurements of these improvements and discuss the consequences for ad hoc routing protocols and their implementations.