Ring Based Routing Schemes for Load Distribution and Throughput Improvement in Multihop Cellular, Ad hoc, and Mesh Networks
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We propose novel schemes for distributing the load and improving the bandwidth utilization in Wireless networks. In a multihop wireless network with uniform node density and uniform traffic density, the shortest path routing seems to be an attractive alternative to any nonlinear path. However, in the shortest path routing schemes mobile nodes closer to the Center of the network lie on more shortest paths than nodes farther away and hence become points of contention, thus relaying more traffic and exhausting their limited battery power. This also leads to reduction in throughput in the region of increased contention. In this paper, we propose Ring Based Routing Schemes to distribute the load, close to the Center of the network, over the entire network. We also present theoretical analysis for load distribution and hop count of various schemes. In our simulations using GloMoSim we obtained a better load distribution over the network and an increased throughput of up to 25% to 30% as compared to shortest path routing at the cost of 4% to 8% increase in average hop length.
KeywordsShort Path Mobile Node Medium Access Control Mesh Network Load Distribution
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