Networking

Error Exponents for Multi-Source Multi-Relay Parallel Relay Networks With Limited Backhaul Capacity

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Executive Summary

In this paper, the authors assess the random coding Error Exponents (EEs) corresponding to Decode-and-Forward (DF), Compress-and-Forward (CF) and Quantize-and-Forward (QF) relaying strategies for a Parallel Relay Network (PRN), consisting of two sources, two Relay Stations (RSs) and single destination where the RSs access to the destination via orthogonal, error-free, limited-capacity backhaul links. Among these relaying strategies, the DF and QF studied in this paper differ from their well-known conventional versions in certain aspects. In the DF relaying, each RS applies Maximum-Likelihood (ML) detection and sends the message corresponding to the detected signal along with a reliability information to the destination which finalize the decision on the transmitted message.

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