DocumentCode :
673042
Title :
Two-layer rateless codes over lattices for Gaussian broadcast channels
Author :
Shancheng Zhao ; Xiao Ma ; Kai Zhang ; Baoming Bai
Author_Institution :
Dept. of ECE, Sun Yat-sen Univ., Guangzhou, China
fYear :
2013
fDate :
1-3 Nov. 2013
Firstpage :
101
Lastpage :
105
Abstract :
In this paper, we present a class of rateless coset codes, which consists of two layers. The first layer is protected by a systematic lattice-Kite code, which takes as input a sequence of coset leaders and delivers as output a sequence of coset leaders with redundancy. The second layer is for shaping, which can be implemented by using a (possibly coded) binary sequence to select lattice points from each coset. Based on the presented two-layer lattice-Kite code, we propose a rateless transmission scheme for two-user Gaussian broadcast channels (TU-GBC), where the common information and the private information are carried by the first layer and the second layer, respectively. The proposed scheme allows the user with good channel conditions to collect more private information. Simulation results are given to show the effectiveness of the proposed rateless transmission scheme.
Keywords :
Gaussian channels; binary sequences; broadcast channels; modulation coding; TU-GBC; binary sequence; common information; lattice points; private information; rateless transmission scheme; systematic lattice-Kite code; two-layer rateless coset codes; two-user Gaussian broadcast channels; Lattices; Lead; Systematics; Tiles; Adaptive coded modulation; LDPC codes; Raptor codes; broadcast channel; coset codes; group codes; lattice codes; rateless coding;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
High Mobility Wireless Communications (HMWC), 2013 International Workshop on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-6379-2
Type :
conf
DOI :
10.1109/HMWC.2013.6710317
Filename :
6710317
Link To Document :
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