On the Achievable Rates of the Diamond Relay Channel with Conferencing Links
作者： Chuan Huang , Jinhua Jiang , Shuguang Cui
DOI: 10.1109/TCOMM.2012.051012.110022A
关键词: Diamond 、 Electronic engineering 、 Computer science 、 Upper and lower bounds 、 Gaussian 、 Relay channel 、 Computer network 、 Relay 、 Decoding methods
摘要: We consider the half-duplex diamond relay channel, which consists of one source-destination pair and two nodes connected with two-way rate-limited out-of-band conferencing links. Three basic coding schemes are studied: For decode-and-forward (DF) scheme, we obtain an achievable rate by letting source send a common message private messages; for compress-and-forward (CF) exploit links to help compression received signals, or exchange messages intended second hop introduce different levels cooperations; amplify-and-forward (AF) study optimal combining strategy between signals from link. Moreover, show that these could achieve capacity upper bound under certain conditions. Finally, evaluate various rates Gaussian case numerical results.
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