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We compare the performance of half-duplex relays in downlink cellular system against a baseline system without relays. We simulate the performance of (i) a collaborative power addition scheme, where the relay boosts the received power (P-CPA) at the mobile locations, and (ii) a CPA scheme with power control (PC-CPA) at the base station and relays. Evaluations are done in the context of a 19-cell,...
The advances in radio design and wireless networking, along with the growth of multimedia home entertainment technologies, is creating the concept of a cognitive digital home requiring spectrum coexistence of various devices and networks of networks. In this paper, we introduce a framework for resource allocation in a cognitive digital home with a multiplicity of radio access technologies such as...
We investigate bandwidth allocation in LTE Advanced systems employing Type-I relays. We optimize the bandwidth and power usage under constraints on required rate, bandwidth and transmit power. We study a scenario in which the relay acts as a dedicated forwarder in the downlink for a User Equipment (UE). Our results indicate that upto 50% reduction in total power consumption can be achieved by this...
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