Towards optimum Hybrid ARQ with rateless codes for real-time wireless multicast

Author

Tan, Guoping ; Ma, Saisai ; Jiang, Defu ; Li, Yueheng ; Zhang, Lili

Author_Institution

Coll. of Comput. & Inf. Eng., Hohai Univ., Nanjing, China

fYear

2012

fDate

1-4 April 2012

Firstpage

1953

Lastpage

1957

Abstract

For guaranteeing quasi-error free delivery of realtime multicast services over wireless networks, an efficient greedy algorithm is proposed for optimizing the parameters of a HARQ scheme with rateless codes under strict delay and bandwidth constraints. We take systematic Raptor codes as an example for analyzing the optimum performance of the HARQ scheme. The results show that the optimum performance can be obtained by combining the optimum HARQ and FEC. Additionally, the simulation results show that the proposed optimization framework can be used for evaluating the tight lower bound performance of the HARQ, which indicates that it is suitable for designing optimum HARQ scheme with guaranteeing the target quasi-error free delivery requirements very well.

Keywords

automatic repeat request; greedy algorithms; multicast communication; radiocommunication; bandwidth constraints; greedy algorithm; optimization framework; optimum hybrid ARQ; quasi-error free delivery; quasierror free delivery requirements; rateless codes; real-time wireless multicast; realtime multicast services; systematic Raptor codes; wireless networks; Decoding; Delay; Encoding; Forward error correction; Greedy algorithms; Optimization; Receivers; HARQ; Rateless Codes; Real-time Multicast;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference (WCNC), 2012 IEEE

Conference_Location

Shanghai

ISSN

1525-3511

Print_ISBN

978-1-4673-0436-8

Type

conf

DOI

10.1109/WCNC.2012.6214108

Filename

6214108