Distortion exponents of two-way relaying networks with Multiple-Access Broadcast protocol
WCNC（2011）
摘要
In this paper, we study the end-to-end distortions when transmitting two Gaussian signals in a three-node, half-duplex, and two-way relaying network, where two users communicate in both directions with the help of one relay, and can transmit at different rates. We focus on the two-phase Multiple-Access Broadcast (MABC) cooperation protocol with decode-and-forward (DF), amplify-and-forward (AF), or compress-and-forward (CF) strategy at the relay. In each case, we analyze the achievable distortion exponents of the two sources at high signal-to-noise ratio (SNR) regime. The results illustrate the effects of the bandwidth ratio and cooperation strategies on the optimized distortion exponents. We also derive the achievable diversity-multiplexing gain tradeoffs of these two-way relaying protocols.
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关键词
bandwidth ratio,distortion exponents,protocols,diversity-multiplexing gain tradeoffs,diversity reception,two-way relaying networks,decode and forward communication,decode-and-forward strategy,cooperative communication,two-phase multiple-access broadcast cooperation protocol,gaussian signals,multi-access systems,radio networks,three-node network,signal-to-noise ratio regime,amplify-and-forward strategy,compress-and-forward strategy,half-duplex network,amplify and forward communication,signal to noise ratio,encoding,bandwidth,decoding,distortion
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