Title :
Multi-user detector schemes for the UMTS uplink transmission
Author :
Souto, Nuno ; Silva, Joao Carlos ; Correia, Américo ; Cercas, Francisco ; Da Silva, Mario Marques ; Rodrigues, Antinio ; Santos, Adriano
Author_Institution :
Inst. de Telecomunicacoes, Portugal
fDate :
30 Aug.-2 Sept. 2004
Abstract :
This paper focuses on performance results obtained using multi-user detector (MUD) techniques for the Universal Mobile Telephony System (UMTS) uplink transmission. Both parallel interference cancellation (PIC) and successive interference cancellation (SIC) schemes are studied and compared. Factors such as the number of iterations, decision method (hard/soft/clipped), type of service (64/144 kbit/s) and number of simultaneous users are analyzed, for the main UMTS channels (indoor A, pedestrian A, vehicular A), in order to quantify the performance gain of each combination, and decide what schemes yield the least amount of errors under which conditions. Bit and block error rate (BER and BLER respectively) results obtained via simulation are presented and discussed.
Keywords :
3G mobile communication; error statistics; indoor radio; interference suppression; multiuser detection; 144 kbit/s; 64 kbit/s; BER; BLER; MUD techniques; PIC; SIC; UMTS uplink transmission; Universal Mobile Telephony System; bit error rate; block error rate; clipped decision; decision method; hard decision; indoor A channel; iterations; multi-user detector techniques; parallel interference cancellation; pedestrian A channel; performance gain; service type; simultaneous users; soft decision; successive interference cancellation; vehicular A channel; 3G mobile communication; Bit error rate; Detectors; Error analysis; Interference cancellation; Multiuser detection; Performance analysis; Performance gain; Silicon carbide; Telephony;
Conference_Titel :
Spread Spectrum Techniques and Applications, 2004 IEEE Eighth International Symposium on
Print_ISBN :
0-7803-8408-3
DOI :
10.1109/ISSSTA.2004.1371723
