Relay based green communication in mobile networks: 1-dimension case

Abstract

Green communication (energy efficient), with increasing capacity in mobile networks, mainly depends on energy used by relay nodes, placement of relay nodes and total number of relays. The range extension of the network with all the three considerations lead to an energy efficient communication with achievable data rates and less bit error rate (BER). Initial part of the paper explores efficient single node placement in/on a circle between source and sink. Later, it is extended to an optimal placement on a one dimensional plane to provide a better network connectivity. Mathematical analysis for optimal placement of the relay nodes and the number of relays required for energy efficient communication is shown. The same is simulated using GNU Octave and the results are presented for optimal number of hops and optimal placement. From our results obtained from single relay in/on a circle, the relay communication is energy efficient if the relay nodes makes an angle of π. In case of multi-hop relay, communication energy vs number of hops vs user mobility is presented.