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http://tools.ietf.org/id/draft-ietf-manet-olsr.
Abstract:
This document describes the Optimized Link State Routing (OLSR) protocol
for mobile ad hoc networks. The protocol is an optimization of the classical link state algorithm
tailored to the requirements of a mobile wireless LAN. The key concept used in the protocol
is that of multipoint relays (MPRs). MPRs are selected nodes which forward broadcast messages during the
flooding process. This technique substantially reduces the message overhead as compared to a classical flooding mechanism,
where every node retransmits each message when it receives the first copy of the message. In
OLSR, link state information is generated only by nodes elected as MPRs. Thus, a second optimization
is achieved by minimizing the number of control messages flooded in the network. As a third
optimization, an MPR node may chose to report only links between itself and its MPR selectors.
Hence, as contrary to the classic link state algorithm, partial link state
information is distributed in the network. This information is then used for route
calculation. OLSR provides optimal routes (in terms of number of hops). The protocol is
particularly suitable for large and dense networks as the technique of MPRs works
well in this context.
Authors:
Philippe Jacquet <Philippe.Jacquet@inria.fr>
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid)
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