Full-Duplex Versus Half-Duplex Amplify-and-Forward Relaying: Which is More Energy Efficient in 60-GHz Dual-Hop Indoor Wireless Systems?

PROJECT TITLE :

Full-Duplex Versus Half-Duplex Amplify-and-Forward Relaying: Which is More Energy Efficient in 60-GHz Dual-Hop Indoor Wireless Systems?

ABSTRACT:

We have a tendency to give a comprehensive energy potency (EE) analysis of the total-duplex (FD) and 0.5-duplex (HD) amplify-and-forward (AF) relay-assisted sixty-GHz dual-hop indoor wireless systems, progressing to answer the question of which relaying mode is greener (additional energy efficient) and to address the difficulty of EE optimization. We develop an opportunistic relaying mode choice scheme, where FD relaying with one-stage self-interference cancellation (passive suppression) or 2-stage self-interference cancellation (passive suppression + analog cancellation) or HD relaying is opportunistically selected, along with transmission power adaptation, to maximise the EE with given channel gains. A coffee-complexity joint mode selection and EE optimization algorithm are proposed. We have a tendency to show a counter-intuitive finding that with a relatively loose most transmission power constraint, FD relaying with two-stage self-interference cancellation is preferable to both FD relaying with one-stage self-interference cancellation and HD relaying, resulting in a higher optimized EE. A full range of power consumption sources is considered to rationalize our analysis. The consequences of imperfect self-interference cancellation at relay, drain efficiency, and static circuit power on EE are investigated. Simulation results verify our theoretical analysis.

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