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CMIMO is an effective approach to increase throughput and energy efficiency through the collaboration of individual antennas working together as a virtual multi-antenna system. Several CMIMO strategies have been propounded as major candidates for achieving green communications in wireless sensor networks. Compared to conventional MIMO, CMIMO provides significant gains in terms of flexibility. Recently,...
In this paper, we analyze the impact of burst size in OBS networks with ALR to reduce energy consumption. The simulation is performed in terms of rate reduction, channel occupancy, transition overhead and average queueing delay by using OPNET.
This paper proposes an improved Ad-hoc On-Demand Distance Vector (AODV) routing protocol based on node-grade to reduce the energy consumption of nodes in wireless sensor networks. The improved AODV called Grade-AODV (G-AODV) assigns a grade to each node according to the hop distance of the node to the sink node. The lower grade a node has, the closer it is to the sink. Each node is restricted to receive...
Recently, Green IT has attracted much attention to solve economical and environmental problems. To save energy in communication systems, Energy Efficient Ethernet (EEE) has recently begun to explore rate adaptation for energy savings. We study the performance impact of traffic patterns on energy consumption via simulation. To evaluate the energy saving performance according to the traffic patterns,...
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