Title :
Scalar Quantize-and-Forward for symmetric half-duplex Two-Way Relay Channels
Author :
Heindlmaier, Michael ; Iscan, Onurcan ; Rosanka, Christopher
Author_Institution :
Inst. for Commun. Eng., Tech. Univ. Munchen, Munich, Germany
Abstract :
Scalar Quantize & Forward (QF) schemes are studied for the Two-Way Relay Channel. Different QF approaches are compared in terms of rates as well as relay and decoder complexity. A coding scheme not requiring Slepian-Wolf coding at the relay is proposed and properties of the corresponding sum-rate optimization problem are presented. An iterative numerical scheme is derived that guides optimized quantizer design. The results are supported by simulations.
Keywords :
communication complexity; iterative methods; network coding; optimisation; relay networks (telecommunication); QF schemes; Slepian-Wolf coding; coding scheme; decoder complexity; iterative numerical scheme; relay complexity; scalar quantize-and-forward; sum-rate optimization; symmetric half-duplex two-way relay channels; Decoding; Downlink; Encoding; Indexes; Quantization (signal); Relays;
Conference_Titel :
Information Theory Proceedings (ISIT), 2013 IEEE International Symposium on
Conference_Location :
Istanbul
DOI :
10.1109/ISIT.2013.6620441
