Title :
MAI-minimized signature waveforms for MC-DS-CDMA systems
Author :
Sureshkumar, S. ; Shwedyk, E. ; Nguyen, Ha H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada
fDate :
30 May-1 June 2005
Abstract :
This paper considers signature waveform design for downlink communications in a multicarrier direct sequence code division multiple access (MC-DS-CDMA) system. The design introduces a carefully chosen phase offset in each carrier to minimize the multiple access interference (MAI). With the proposed signature waveform design, a significant performance improvement over the existing MC-DS-CDMA systems is achieved.
Keywords :
code division multiple access; interference suppression; spread spectrum communication; MAI-minimized signature waveforms; MC-DS-CDMA systems; downlink communications; multicarrier direct sequence code division multiple access; multiple access interference; performance improvement; phase offset; Bandwidth; Base stations; Direct-sequence code-division multiple access; Downlink; Fading; Gaussian channels; Multiaccess communication; Multiple access interference; Proposals; System performance;
Conference_Titel :
Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st
Print_ISBN :
0-7803-8887-9
DOI :
10.1109/VETECS.2005.1543300
