Computer Science – Networking and Internet Architecture
Scientific paper
2009-02-27
4th OLSR Interop/Work Shop, Ottawa : Canada (2008)
Computer Science
Networking and Internet Architecture
Scientific paper
In this paper we discussed the application and the implementation of multipath routing and multiple description coding (MDC) extension of OLSR, called MP-OLSR. It is based on the link state algorithm and employs periodic exchange of messages to maintain topology information of the networks. In the mean time, it updates the routing table in an on-demand scheme and forwards the packets in multiple paths which have been determined at the source. If a link failure is detected, the algorithm recovers the route automatically. Concerning the instability of the wireless networks, the multiple description coding is used to improve reliability of the network transmission, and several methods are proposed to allocate the redundancy in different paths. The simulation in NS2 shows that the new protocol can effectively improve the performance of the networks. The implementation of MP-OLSR is also proposed in the end.
Cizeron Eddy
Hamma Salima
Lesage Pascal
Parrein Benoît
Yi Jiazi
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