Title :
Performance enhancement of F-PDCH using oversampling diversity MMSE receive equalizer
Author :
Yoon, Chanho ; Kang, Joonhyuk
Author_Institution :
Sch. of Eng., Inf. & Commun. Univeristy, Daejeon, South Korea
fDate :
30 May-1 June 2005
Abstract :
cdma2000 1xEV-DV (1x evolution for high-speed integrated data and voice) is a high-speed wireless data packet transmission system application designed for wideband systems. In general, the system requires some form of equalization at the receiver. ISI (inter-symbol interference) caused by multipath greatly prohibits utilization of higher order modulation scheme such as 16-QAM, which is operated in relatively high SNR range. Simulations demonstrate that high-speed data transmission, under multipath fading channel without equalization, is completely impossible. In this paper, we propose an over-sampled diversity-version of receive MMSE equalizer for forward link PDCH (packet data channel) of cdma2000 1x EV-DV which successfully alleviates the effect of ISI.
Keywords :
3G mobile communication; broadband networks; diversity reception; equalisers; fading channels; integrated voice/data communication; intersymbol interference; least squares approximations; multipath channels; packet radio networks; quadrature amplitude modulation; radio receivers; 16-QAM; 1x evolution for high-speed integrated data and voice; MMSE; cdma2000 1xEV-DV; equalization; high-speed wireless data packet transmission system; intersymbol interference; multipath fading channel; oversampling diversity; packet data channel; receive equalizer; wideband systems; Communication standards; Degradation; Equalizers; Fading; Intersymbol interference; Modulation coding; Multiaccess communication; System performance; Throughput; Wideband;
Conference_Titel :
Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st
Print_ISBN :
0-7803-8887-9
DOI :
10.1109/VETECS.2005.1543405
