Mobility

Optimal Relay Placement for Coverage Extension in LTE-A Cellular Systems

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Executive Summary

Third Generation Partnership Project (3GPP) Long Term Evolution-Advanced (LTE-A) has considered the deployment of Relay Nodes (RNs) for cost-effective throughput enhancement and coverage extension. The coverage extension (increase in cell radius) depends on the radial position of RNs in the cell. This is because the location of a RN affects the Signal-to-Interference-plus-Noise Ratio (SINR) of the received signal on the evolved-NodeB (eNB)-RN and RN-User Equipment (UE) links. In this paper, the authors investigate the problem of optimal relay placement for coverage extension in relay assisted LTE-A networks.

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