Title :
Extended one-shot decorrelating detector for asynchronous DS/CDMA systems in multipath fading channels
Author :
Kang, Jee Woong ; Lee, Kwang Bok Ed
Author_Institution :
Dept. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
We propose an extended one-shot decorrelating detector (EOS-DD) for asynchronous systems DS/CDMA systems in frequency selective fading environments. The EOS-DD extends a processing window to several symbol duration. The received signal over an extended window is utilized for the decorrelator in the EOS-DD. The effects of the window size on the BER performance are investigated by numerical analysis. Analysis and simulation show that the EOS-DD is superior to the one-shot decorrelating detector (OS-DD) and finite memory length truncated decorrelating detector (FIR-DD) in terms of noise enhancement and near-far resistance
Keywords :
channel bank filters; code division multiple access; decorrelation; fading channels; filtering theory; interference suppression; land mobile radio; matched filters; multipath channels; multiuser channels; radiofrequency interference; signal detection; spread spectrum communication; BER performance; FIR-DD; IMT-2000; asynchronous DS/CDMA systems; decorrelator; direct sequence code division multiple access; extended one-shot decorrelating detector; finite memory length truncated decorrelating detector; frequency selective fading; matched filter bank; multipath fading channels; multiple access interference elimination; near-far resistance; noise enhancement; numerical analysis; one-shot decorrelating detector; processing window; received signal; simulation; symbol duration; window size; Bit error rate; Computational complexity; Decorrelation; Detectors; Fading; Frequency; Gunshot detection systems; Multiaccess communication; Multiple access interference; Signal processing;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851629
