Energy Issues in Mobile Ad Hoc Networks - A Research Perspective

A routing technique is proposed which incorporate device residual battery power status into routing path selection decision with the objective to maximize the energy efficiency in the selected routing path. A new path selection metric is also taken into account based on probabilistic approach. The issue of congestion is addressed as congestion is also one of the main reasons for packet drops in mobile adhoc network at high load. To achieve optimal network performance with energy efficiency, the congestion issue must be addressed together with energy issue. The proposed protocol is further enhanced with addition of congestion adaptability, which further enhances the energy efficiency of the network and at the same time give better network performance. Sleep mode is also added in the proposed protocol to save the node energy if the node is already in low power state.The cross layer design approach is further incorporated in the proposed protocol to address the issue of node mobility using link monitoring and adding the functionality of dynamically controlled variable transmission power to save node energy.