A Distributed Algorithm for Building Energy-Efficient Group-Shared Multicast Tree in Ad Hoc Networks

The group-based multicast is widely applied in wireless ad hoc networks because it has lower storage status messages in the nodes and lesser overhead cost in the shared tree. Reducing energy consumption and extending network lifetime in multicasting are two important issues. In this paper, a distributed algorithm called B-REMiT is proposed for building an energy efficient shared tree in ad hoc network. The algorithm BREMiT focuses on the metric TEC (Total Energy Consumption) while its refining is guided by the metric SL (System Lifetime) of shared tree. Such a nice integration seems to well balance the two metrics by improving SL of multicast trees efficiently with little sacrifice on TEC.