Route Maintenance in IEEE 802.11 wireless mesh networks
| Autor: | Guy Juanole, Slim Abdellatif, Usman Ashraf |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Routing protocol
Dynamic Source Routing Wireless mesh network Computer Networks and Communications Network packet Computer science business.industry Distributed computing ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Mesh networking Order One Network Protocol Shared mesh Network layer Hop (networking) Route poisoning IEEE 802.11 Ad hoc On-Demand Distance Vector Routing Hazy Sighted Link State Routing Protocol Link layer Switched mesh business IEEE 802.11s Computer network |
| Zdroj: | Computer Communications. 34:1604-1621 |
| ISSN: | 0140-3664 |
| Popis: | In this paper, we propose a novel Route Maintenance scheme for IEEE 802.11 wireless mesh networks. Despite lack of mobility and energy constraints, reactive routing protocols such as AODV and DSR suffer from frequent route breakages in 802.11 based infrastructure wireless mesh networks. In these networks, if any intermediate node fails to successfully transmit a packet to the next hop node after a certain number of retransmissions, the link layer reports a transmission problem to the network layer. Reactive routing protocols systematically consider this as a link breakage (and therefore a route breakage). Transmission failures can be caused by a number of factors e.g. interference or noise and can be transient in nature. Frequent route breakages result in significant performance degradation. The proposed mechanism considers multiple factors to differentiate between links with transient transmission problems from those links which have permanent transmission problems and takes a coherent decision on link breakage. The proposed mechanism is implemented in AODV for single-radio single-channel mesh network and an extension is incorporated in multi-radio multi-channel scenarios. Simulation results show substantial performance improvement compared to classical AODV and local route repair schemes. |
| Databáze: | OpenAIRE |
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