Title :
Non-Uniform 2-Slot Constellations for Bidirectional Relaying in Fading Channels
Author :
Uricar, Tomas ; Sykora, Jan
Author_Institution :
Dept. of Radioengineering, Czech Tech. Univ. in Prague, Prague, Czech Republic
fDate :
8/1/2011 12:00:00 AM
Abstract :
In this paper we introduce the constellation alphabets suitable for bidirectional relaying in parametric wireless channels. Based on the analysis of hierarchical minimum distance, we present a simple design algorithm for the non-uniform 2-slot constellation alphabets. These novel constellation alphabets outperform traditional linear modulation schemes in Hierarchical-Decode-and-Forward and Denoise-and-Forward relaying strategies in fading channels without sacrificing the overall system throughput.
Keywords :
decode and forward communication; fading channels; network coding; bidirectional relaying; denoise-and-forward relaying strategies; hierarchical minimum distance; hierarchical-decode-and-forward relaying strategies; network coding; nonuniform 2-slot constellation alphabets; parametric wireless channels; system throughput; traditional linear modulation schemes; Algorithm design and analysis; Fading; Phase shift keying; Relays; Signal to noise ratio; Wireless communication; Bidirectional relaying; hierarchical-decode-and-forward; wireless network coding;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2011.060811.110962
