In this paper, we study the impact of using partial versus full topology in the OLSR routing protocol for MANETs. The core of OLSR is the notion of MultiPoint Relays (MPRs), serving the purpose of reducing the amount of link-state information, flooded t o nodes in the network, as well as reducing the redundancy in the flooding process. The OLSR protocol specification contains a tunable parameter, MPR coverage, which adjusts the degree of redundancy in both the advertised link-state information, and the links over which the link-state information is advertised. We investigate the impact from assigning various values to this parameter. We further investigate two options for advertising additional link-state information: the "MPR full link-state" option implies that whenever a node is selected to declare any link-state information, it declares all its local link state information. The "full link-state" option states, that all nodes must declare all their local link-state information. Through simulations, we investigate the performance characteristics of OLSR with and without these options. A mobile ad-hoc network (MANET) is a collection of nodes, connected by wireless links, forming an arbitrary, dynamic graph. The wireless medium typically implies a bandwidthconstrained network. This due to the lower bandwidth provided by the network adaptors and to the fact that communication over any link will interfere with communication on any other link within radio range. Mobility implies that links between nodes may change and that the number of nodes in a network is not constant. The physical size of a MANET is expected to be larger than the radio range of the wireless interfaces, thus for any two nodes in the network to be able to communicate, routing is necessary.
REF investigates the impact of extending topology knowledge on the OLSR protocol performance.
Investigating the impact of partial topology in proactive MANET routing protocols
The 5th International Symposium on Wireless Personal Multimedia Communications
The 5th International Symposium on Wireless Personal Multimedia Communications
Computer Science