Title :
Performance of coded higher order modulation and hybrid ARQ for next generation cellular CDMA systems
Author :
Ghosh, Amitava ; Jalloul, Louay ; Cudak, Mark ; Classon, Brian
Author_Institution :
Network Sect., Motorola Inc., USA
Abstract :
A key requirement for next generation CDMA systems is to provide a high bit rate packet data service and improved sector throughput for both low and high mobility applications. A 1.25 MHz DS-CDMA evolution called 1XTREME (Third Generation Enhanced Modulation and Encoding) has been proposed. 1XTREME uses a forward shared channel (F-SHCH) that is shared by multiple packet data users and is capable of supporting peak rates of up to 5 Mbps, compared to third generation CDMA system indoor peak data rates of 460 kbps and 2 Mbps for IS-2000 and W-CDMA, respectively. In this paper the link performance of the F-SHCH is evaluated for different modulation and coding scheme (MCS) configurations. Based on the link results, the average sector throughput is presented for two simple scheduling algorithms, as well as performance as a function of the maximum allowed FER operating point
Keywords :
automatic repeat request; cellular radio; code division multiple access; data communication; modulation coding; multiuser channels; packet radio networks; radio links; 1.25 MHz; 1XTREME; 2 Mbit/s; 460 kbit/s; 5 Mbit/s; CDMA system indoor; DS-CDMA; FER; W-CDMA; average sector throughput; coded higher order modulation; forward shared channel; frame error rate; high bit rate packet data service; high mobility applications; hybrid ARQ; low mobility applications; next generation cellular CDMA systems; performance; scheduling algorithms; sector throughput; third generation enhanced modulation and encoding; Automatic repeat request; Base stations; Modulation coding; Multiaccess communication; Power control; Quadrature phase shift keying; Rayleigh channels; Signal processing; Throughput; Turbo codes;
Conference_Titel :
Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-6507-0
DOI :
10.1109/VETECF.2000.887067
