Title :
Turbo-coded blind per-survivor processing multiuser detection CDMA
Author :
Kuan, E.L. ; Hanzo, L.
Author_Institution :
Dept. of Electron. & Comput. Sci., Southampton Univ., UK
Abstract :
Joint data and blind channel estimation based on the principle of per-survivor processing (PSP) is invoked and characterised in the proposed turbo-coded multiuser detection assisted code division multiple access (CDMA) system. The turbo-coded blind PSP receiver invoked the likelihood function in its metric calculations over the typical urban (TU) time-variant COST 207 fading channel fluctuating at Doppler frequencies between 0.8 Hz and 80 Hz. The size of the turbo interleaver was shown to be critical as regards to the overall system performance, and for a rectangular turbo interleaver size of 55×55 bits in conjunction with a 100×100-bit or 156×156-bit channel interleaver no transmission errors were recorded for the above two Doppler frequencies over the COST 207 TU fading channel
Keywords :
code division multiple access; fading channels; interleaved codes; multiuser channels; radio receivers; signal detection; time-varying channels; turbo codes; 0.8 to 80 Hz; BER performance; CDMA; COST 207 fading channel; Doppler frequencies; PSP receiver; blind channel estimation; channel interleaver; code division multiple access; data sequence detection; likelihood function; metric calculations; per-survivor processing; rectangular turbo interleaver; time-variant fading channel; turbo-coded multiuser detection; typical urban fading channel; Convolutional codes; Decoding; Delay estimation; Detectors; Fading; Frequency; Multiaccess communication; Multiuser detection; RAKE receivers; Turbo codes;
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.2000.881520
