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This work proposes a new transmission scheme for multirelay two-way relaying systems, where two end- sources communicate with each other via a set of relays. In the proposed scheme, we consider signal space diversity and time division broadcast protocol jointly to increase spectral efficiency without sacrificing the system reliability. The idea behind this consideration is that original data symbols...
This work studies the impact of a multi-relay scheme and co-channel interference (CCI) on the performance of a dual-hop underlay cognitive radio (CR) network. An amplify-and-forward (AF) relay protocol is considered at the relay nodes. Besides the effect of CCI on the secondary network, the interference from the primary transmit node is also considered. Based on opportunistic selection, the best relay...
This paper considers a two-way relay system with time division broadcast (TDBC) protocol. In such protocol two end-sources exchange information with each other through help of a half-duplex decode- and-forward relay. To enhance the spectral efficiency in this system, we propose a novel scheme which incorporates signal space diversity with TDBC protocol. In the proposed scheme, original data symbols...
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