Title :
Differentiated MAI control for hybrid ARQ-II in CDMA networks
Author :
Jiao, Wenhua ; Li, Shu
Author_Institution :
Bell Labs., Lucent Technol., Beijing, China
Abstract :
Multiple access interference (MAI) is a bottleneck which limits the capacity of CDMA system. Differentiated MAI control is proposed for hybrid ARQ-II of CDMA networks by noticing that successive trials of transmission have increasing error-correcting capability in hybrid ARQ-II. Data packets are classified and put into corresponding queues according to different trials of transmission. The scheduling algorithm is studied and applied to realize such control. Simulation shows that differential MAI control using weighted round robin (WRR) or deficit weighted round robin (DWRR) scheduling has significant improvement by comparison to simple MAI control for hybrid ARQ-H in CDMA networks.
Keywords :
automatic repeat request; code division multiple access; error correction; interference suppression; mobile radio; radiofrequency interference; scheduling; CDMA networks; automatic repeat request; code division multiple access; data packets; deficit weighted round robin scheduling; differentiated MAI control; error-correcting capability; hybrid ARQ-II; multiple access interference; scheduling algorithm; Automatic repeat request; Control systems; Error correction; Intelligent networks; Multiaccess communication; Multiple access interference; Protocols; Round robin; Scheduling algorithm; Weight control;
Conference_Titel :
Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Print_ISBN :
0-7803-7974-8
DOI :
10.1109/GLOCOM.2003.1258206
