Title :
Near-far resistance of multicarrier CDMA communication systems
Author :
Yue, Xiaodong ; Fan, H.Howard
Author_Institution :
Dept. of Electr. & Comput. Eng. & Comput. Sci., Univ. of Cincinnati, OH, USA
Abstract :
In this letter, the near-far resistance of the minimum mean square error (MMSE) detector is derived for multicarrier code division multiple access (MC-CDMA) communication systems both with cyclic prefix (CP) and without CP. It is shown that the near-far resistance of MC-CDMA without CP is the same as that of the direct sequence CDMA (DS-CDMA) while MC-CDMA with CP has better performance on near-far resistance at the expense of reduced bandwidth efficiency. Computer simulations confirm theoretical findings.
Keywords :
code division multiple access; least mean squares methods; mobile communication; modulation; radio receivers; DS-CDMA; MMSE detector; code division multiple access; computer simulation; cyclic prefix; direct sequence CDMA; minimum mean square error; mobile communication; multicarrier CDMA communication system; multicarrier modulation; multiuser detection; near-far resistance; reduced bandwidth efficiency; Bandwidth; Baseband; Communication systems; Delay; Detectors; Fading; Interference; Multiaccess communication; Multicarrier code division multiple access; Synchronization;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2003.821738
