Title :
Multicarrier transmission systems with spreading sequences in large delay spread channel
Author :
Abudoukeremu, Ainiwan ; Ida, Yasutoshi ; Matsumoto, Tad ; Matsufuji, Shinya
Author_Institution :
Grad. Sch. of Sci. & Eng., Yamaguchi Univ., Yamaguchi, Japan
fDate :
Oct. 27 2013-Nov. 1 2013
Abstract :
In multi-carrier transmission systems, MC-CDMA and MC-DS-CDMA have been proposed. However, when large delay spread is longer than guard interval (GI), the inter symbol interference (ISI) and inter carrier interference (ICI) are occurred. Their interferences cause the system performance deterioration. This paper treats MC-CDMA and MC-DS-CDMA with four kinds of orthogonal spreading sequence including even-shift orthogonal sequences (E-sequence) type zero correlation zone (E-ZCZ) code in large delay spread channel. Moreover, interleaving method is considered in MC-DS-CDMA. Finally, the bit error rate (BER) performance is evaluated by computer simulation.
Keywords :
code division multiple access; delays; error statistics; intersymbol interference; telecommunication channels; BER performance; E-ZCZ code; E-sequence type zero correlation zone; ICI; ISI; MC-DS-CDMA; bit error rate; computer simulation; evenshift orthogonal sequences; guard interval; inter carrier interference; inter symbol interference; large delay spread channel; multicarrier transmission systems; orthogonal spreading sequence; spreading sequences; Bit error rate; Correlation; Delays; Error correction codes; Fading; Multicarrier code division multiple access; MC-CDMA; MC-DS-CDMA; ZCZ code; delay spread; interleaving;
Conference_Titel :
Signal Design and Its Applications in Communications, The Sixth International Workshop on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4799-6028-6
DOI :
10.1109/IWSDA.2013.6849067
