DocumentCode :
2760137
Title :
Cross-layer rateless coding over wireless relay channel
Author :
Moghaddam, Mahyar Shirvani ; Khalaj, Babak Hossein
Author_Institution :
Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran
fYear :
2010
fDate :
4-6 Dec. 2010
Firstpage :
351
Lastpage :
355
Abstract :
This paper focuses on cross-layer transmission based on rateless coding for relay channels. In the proposed method, rateless coding is used at packet level and a separate physical layer coding is used at the physical layer. As rateless codes are originally designed and optimized for erasure channels, using these codes at the physical layer can lead to significant performance degradation. The proposed scheme has the advantage of a cross-layer design which uses a rateless code at the packet level modeled by an erasure channel. Based on the analysis and simulation results provided in this paper, there is an exact tradeoff between physical layer code rate and rateless code depth, and the optimum value of the physical layer code rate can minimize the average transmission time.
Keywords :
channel coding; wireless channels; cross-layer rateless coding; cross-layer transmission; erasure channels; performance degradation; physical layer coding; wireless relay channel; Encoding; Fading; Physical layer; Random variables; Relays; Signal to noise ratio; Wireless communication; cross-layer Design; rateless code; relay;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Telecommunications (IST), 2010 5th International Symposium on
Conference_Location :
Tehran
Print_ISBN :
978-1-4244-8183-5
Type :
conf
DOI :
10.1109/ISTEL.2010.5734051
Filename :
5734051
Link To Document :
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