Reliability-Aware Iterative Detection Scheme (RAID) for Distributed IDM Space-Time Codes in Relay Systems

Authors: F. Lenkeit, D. Wübben, A. Dekorsy
In this article, distributed interleave-division multiplexing space-time codes (dIDM-STCs) are applied for multi-user two-hop decode-and-forward (DF) relay networks. In case of decoding errors at the relays which propagate to the destination, severe performance degradations can occur as the original detection scheme for common IDM-STCs does not take any reliability information about the first hop into account. Here, a novel reliability-aware iterativedetection scheme (RAID) for dIDM-STCs is proposed. This new detection scheme takes the decoding reliability of the relays for each user into account for the detection at the destination. Performance evaluations show that the proposed RAID scheme clearly outperforms the original detection scheme and that in certain scenarios even a betterperformance than for adaptive relaying schemes can be achieved.
Document type: Journal Paper
Publication: April 2013
Journal: EURASIP Journal on Advances in Signal Processing: Special Issue on Advanced Distributed Wireless Communication Techniques - Theory and Practise
Eurasip_JASP_2013_Lenkeit.pdf1.7 MB
Last change on 30.07.2021 by D. Wübben
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