Title :
MC-CDMA performance analysis for different spreading codes at HPA Saleh model
Author :
Drotar, Peter ; Gazda, Juraj ; Kocur, Dusan ; Galajda, Pavol
Author_Institution :
Dept. of Electron. & Multimedia Commun., Tech. Univ. of Kosice, Kosice
Abstract :
Multi-carrier code division multiple access (MC- CDMA) is a powerfull modulation technique that is being considered in many emerging broadband communication systems. However the high peak to average power ratio (PAPR) of the MC-CDMA signal, a special drawback of multicarrier transmission, has limited its wider aplication due to inefficient use of power amplifiers. PAPR strongly depends on particular spreading sequences considered for transmission. Therefore, the performance analysis of uplink MC-CDMA for different spreading sequences and for different receivers in the presence of Saleh model of high power amplifier (HPA) is presented. The results of our analysies show that the aplication of Golay codes in conduction with micro statistic multi-user receiver (MSF-MUD) provide significant better result as the other investigated spreading sequences and receivers.
Keywords :
Golay codes; amplifiers; code division multiple access; Golay codes; Saleh model; broadband communication system; high power amplifier; micro statistic multiuser receiver; multicarrier code division multiple access; multicarrier transmission; peak to average power ratio; Broadband amplifiers; Broadband communication; High power amplifiers; Modulation coding; Multiaccess communication; Multicarrier code division multiple access; Peak to average power ratio; Performance analysis; Power system modeling; Statistical analysis; HPA; MC-CDMA; PAPR; Saleh model; multi-user receivers;
Conference_Titel :
Radioelektronika, 2008 18th International Conference
Conference_Location :
Prague
Print_ISBN :
978-1-4244-2087-2
Electronic_ISBN :
978-1-4244-2088-9
DOI :
10.1109/RADIOELEK.2008.4542697
