Title :
Performance of low complexity turbo-codes in the UTRA-TDD-mode
Author :
Berens, Friedbert ; Bing, Torsten ; Michel, Heiko ; Worm, Alexander ; Baier, Paul Walter
Author_Institution :
Applications Lab., STMicroelectronics, Geneva, Switzerland
Abstract :
In the project FRAMES (Future Radio Wideband Multiple Access Systems) of the European research program ACTS (Advanced Communications Technologies and Services) an air interface proposal for UMTS (Universal Mobile Telecommunications System) has been developed. In January 1998 ETSI (European Telecommunications Standards Institute) reached a consensus on a UMTS air interface standard termed UTRA (UMTS Terrestrial Radio Access), which is mainly based on the proposal developed within FRAMES. UTRA consists of an FDD (frequency division duplex) mode applying the multiple access scheme W-CDMA (wideband CDMA) and a TDD (time division duplex) mode applying the multiple access scheme TD-CDMA (time division CDMA). For the different services to be supported a set of channel coders has been proposed which have to be further evaluated. In consideration of this need, in this paper a low-complexity rate-compatible punctured turbo code (RCPTC) for high-quality circuit switched data services in the TDD-mode is investigated depending on its main parameters. The criterion in these investigations is the bit error ratio (BER). The performance of the considered turbo code (TC) is analyzed and compared to a convolutional code (CC) of equal complexity
Keywords :
cellular radio; channel coding; circuit switching; code division multiple access; data communication; error statistics; packet radio networks; time division multiplexing; turbo codes; Advanced Communications Technologies and Services; BER; ETSI; European Telecommunications Standards Institute; European research program ACTS; FRAMES; Future Radio Wideband Multiple Access Systems; TD-CDMA; UMTS; UMTS Terrestrial Radio Access; UTRA-TDD-mode; Universal Mobile Telecommunications System; W-CDMA; air interface; bit error ratio; channel coders; circuit switched data services; convolutional code; frequency division duplexing; low-complexity turbo codes; multiple access scheme; performance; rate-compatible punctured turbo code; time division CDMA; time division duplexing; wideband CDMA; 3G mobile communication; Circuits; Communications technology; Frequency conversion; Multiaccess communication; Proposals; Standards development; Telecommunication standards; Turbo codes; Wideband;
Conference_Titel :
Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-5435-4
DOI :
10.1109/VETECF.1999.800261