Optimal Decoding for Wireless Relay Networks With Decode-and-Forward Cooperation Protocol

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Provided by: International Association of Engineering and Management Education (IAEME)
Topic: Hardware
Format: PDF
In this paper, the authors derive an exact Upper Bound (UB) on Bit Error Rate (BER) of the Decode-and-Forward (DF) cooperation protocol. The destination uses the Maximum A Posterior (MAP) decoder to estimate the data sent from the source. The MAP decoder is optimal in the sense that it minimizes the end-to-end error probability. The complexity of derivation comes from the fact that however the source generates data with equal probability, the data received at the destination does not have the same a priori probability.
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