Title :
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
fDate :
4/1/2006 12:00:00 AM
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;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2006.1613740
