Title :
Efficient MC-DS-CDMA transmitter for ICI self-mitigation
Author :
Barbancho, I. ; Tardon, L.J. ; Barbancho, A.M.
Author_Institution :
Dep. Ingenieria de Comunicaciones, Univ. de Malaga, Spain
fDate :
4/27/2006 12:00:00 AM
Abstract :
A multicarrier direct sequence code division multiple access (MC-DS-CDMA) transmitter that takes advantage of the properties of the CDMA codes to minimise intercarrier interference (ICI) is presented. The proposed system does not add significant complexity to the conventional MC-DS-CDMA system and improves overall performance without lowering the transmission rate. The CDMA signals transmitted employ two codes: an orthogonal variable spreading factor code and a scrambling sequence. This transmitter not only reduces ICI, but also allows flexible multi-rate transmissions. It can be employed in both synchronous or asynchronous uplink and downlink.
Keywords :
code division multiple access; interference suppression; spread spectrum communication; transmitters; CDMA codes; CDMA signals; ICI self-mitigation; MC-DS-CDMA transmitter; direct sequence code division multiple access; flexible multi-rate transmissions; intercarrier interference; multicarrier transmitter; orthogonal variable spreading factor code; scrambling sequence code;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20060581
