Abstract
The Probability of Reachability (POR) is defined as fraction of possible reachable routes to all possible routes between all different sources to all different destinations. In network like Mobile Ad-hoc Network (MANET) adequate level of POR is desirable for its smooth functioning. Its value depends upon various factors such as Transmission Range (T), Number of Nodes (N), node mobility, channel fading, shape and size of the region where the ad-hoc network is to be deployed. To find the impact of N,T, size and shape on the value of POR, a shortest path routing algorithm was implemented in MATLAB and effect of the above said parameters was studied. We observe significant impact of varying not only N and T but also of varying size and shape of the region on the POR values.
Highlights
Routing is a process to establish a route from source to destination
In this paper we try to find the impact of varying number of nodes deployed in Mobile Ad-hoc Network (MANET), transmission range of nodes, size and shape of the region on the Probability of Reachability (POR) values
For circular shape the POR value is highest among all given shapes for a given transmission range and number of nodes
Summary
Routing is a process to establish a route from source to destination. The design of routing protocol for the ad-hoc network like MANET is a challenging task even today for researchers due to multiple constraints such as limited bandwidth, transmission range, residual battery power and computational capacity of the nodes. (GRAPH-HOC) Vol., No.3, September 2011 over deployment of resources which may not be a desirable feature in network like MANETs. In order to have adequate value of POR, various factors to be taken into consideration are: transmission range, mobility, multi-path fading, number of nodes deployed and size and shape of the region where the network is to be deployed. In this paper we try to find the impact of varying number of nodes deployed in MANET, transmission range of nodes, size and shape of the region on the POR values. For this purpose a simulator was designed in MATLAB.
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