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In this paper, we analyze the bit error rate (BER) performance of a single relay selection with network coding (S-RS-NC) scheme in two-way relay channels. In this scheme, two source nodes first broadcast their information to the relays sequentially. A single relay which optimizes the system performance is selected. The selected relay decodes the received signals from two sources, performs network...
Underwater communication is a challenging topic due to its singular channel characteristics. Most protocols used in terrestrial wireless communication can not be directly applied in the underwater world. In this paper, we focus on the issue of energy efficient transmission in underwater sensor networks (UWSNs) and analyze this problem in a rigorous and theoretical way. We formalize an optimization...
In this paper, we propose a low-complexity method to perform the incomplete decoding needed at relays for the incomplete decode-and-forward. The decoding problem is considered as a diophantine approximation search. We propose two modifications of Cassels' algorithm to approximate an element x ?? ???(i, ??) by a linear combination a + ??b of symbols taken in a Z-PAM. Simulation results show that the...
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