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In this study, the authors first analyse system performance of beamforming amplify-and-forward two-way relay networks with physical-layer network coding under the impact of co-channel interference from multiple surrounding terminals and then propose the associated power allocation strategies. The performance of the two-way communications in terms of outage probability, symbol error rate (SER), and...
Two-way relaying systems efficiently accomplish transmissions in both directions within dual-hop, hence, two time slots can be saved compared with one-way relaying. However, the conventional two-way relaying protocol requires the assumption of symmetric traffic demands, that is, each transmitter node has to act as a receiver in latter slot. This assumption restricts applying two-way relay to general...
In this paper, we investigate energy efficiency (EE) of the co-located and the distributed multiple-input multiple output (MIMO) system. First, we obtain an approximate EE expression for different power consumption models. Then two EE properties are revealed for the distributed MIMO system. The analytical results are verified by computer simulations.
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