Energy is a limiting factor for mobile ad hoc networks. In many use cases, MANET (Mobile Ad hoc NETwork) nodes rely on battery power, because they are mobile or have limited access to an infrastructure. This leads to energy-constraints regarding how network devices should use their resources (CPU, radio, etc.) A straightforward way of dealing with this issue is to provide batteries with higher capacities: this increases node lifetime, hence, network lifetime. This solution is however expensive. Another way is to find efficient mechanisms for energy conservation. One may achieve significant power savings by incorporating energy aware strategies into network protocol designs.
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