Two hybrid ARQ algorithms for reliable multicast communications in UMTS networks

Author

Papadopoulos, George D. ; Koltsidas, Georgios ; Pavlidou, Fotini-Niovi

Author_Institution

Dept. of Electr. & Comput. Eng., Aristotelian Univ. of Thessaloniki, Greece

Volume

10

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

260

Lastpage

262

Abstract

Multicast communications in wireless networks have attracted the interest of the scientific community, since many issues remain open. In this framework, our letter proposes two novel hybrid automatic repeat request (HARQ) algorithms for multicast communications in the UMTS radio link control (RLC) layer. The proposed algorithms exploit the channel autocorrelation in order to dynamically estimate the multicast users´ channel conditions and thus reduce the mean service data unit (SDU) delay and increase the SDU throughput.

Keywords

3G mobile communication; automatic repeat request; channel estimation; multicast communication; multiuser channels; radio links; telecommunication network reliability; RLC layer; SDU throughput; UMTS networks; automatic repeat request; channel autocorrelation; hybrid ARQ algorithms; multicast user channel estimation; radio link control; reliable multicast communications; service data unit; wireless networks; 3G mobile communication; Automatic control; Automatic repeat request; Delay estimation; Multicast algorithms; Multicast communication; Radio control; Radio link; Telecommunication network reliability; Wireless networks;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2006.1613740

Filename

1613740