Residual energy-based OLSR in mobile ad hoc networks

Abstract

OLSR is a proactive routing protocol for mobile ad hoc networks (MANETs). OLSR uses a concept of MPR selection mechanism to reduce broadcast packets during a flooding process. MPR nodes use more energy than nonMPR nodes. Thus they easily run out their energy since mobile nodes in MANETs are powered by battery with limited energy. This paper proposes a residual energy-based OLSR protocol named REOLSR2. The REOLSR2 selects MPR nodes based on not only reachability and degree but also residual energy of 1-hop neighbors. The aim is to avoid selecting MPR nodes which has small residual energy and concentrating energy consumption in specific nodes. Simulation results show that the proposed scheme reduces energy consumption and enhances network throughput efficiently.

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