Title :
On the sensitivity of IMT-DS performance to system parameters
Author :
Yuen, Raymond H M ; Sheikh, Asrar U H
Author_Institution :
Dept. of Electron. Eng., Hong Kong Polytech., Kowloon, China
Abstract :
IMT-DS, formerly known as the UTRA system is one of five radio interface standards adopted for the third generation IMT-2000 systems. We present results of our investigation on the sensitivity of IMT-DS performance to variations in the system parameters. In particular, the performance of a multi-rate IMT-DS system is investigated for different RAKE structures, interleaving depths, and Doppler frequencies. An approximate expression for the BER of a RAKE receiver mismatched to the channel is derived. It is shown that the performance is dependent on the inter-path interference. An improvement in performance is obtained if antenna diversity is combined with traditionally used path diversity available in RAKE receivers
Keywords :
Doppler effect; diversity reception; error statistics; land mobile radio; network interfaces; radio access networks; radio receivers; radiofrequency interference; telecommunication standards; BER; Doppler frequencies; IMT-2000 radio interface standards; IMT-DS performance; RAKE receiver; UTRA system; Universal Terrestrial Radio Access; W-CDMA; antenna diversity; approximate expression; inter-path interference; interleaving depths; multi-rate IMT-DS system; path diversity; radio interface standards; system parameters; third generation IMT-2000 systems; Bandwidth; Bit error rate; Diversity reception; Fading; Fingers; Frequency; Interleaved codes; Multiaccess communication; Multipath channels; Wideband;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-6463-5
DOI :
10.1109/PIMRC.2000.881444
