Title :
A Symbol-Level FDE and Spread-Spectrum Mode Design for Multi-Code Multiple Access Systems
Author :
Liu, Tingting ; Yang, Chenyang
Author_Institution :
Sch. of Electron. & Inf. Eng., Beihang Univ., Beijing
Abstract :
Design of equalizers and spread-spectrum modes or code allocation schemes is crucial for achieving good performance multi-code multiple access systems. In this paper, a symbol- level frequency domain equalizer and spread-spectrum mode are jointly designed to maximize the diversity gain with low complexity. Since the proposed transceiver scheme is independent of the orthogonal codes, it can be applied to direct sequence code division multiple access (DS-CDMA), multi-carrier CDMA (MC-CDMA) and orthogonal frequency division multiple access (OFDMA) systems. Simulation results are provided which validate the theoretical analysis.
Keywords :
diversity reception; equalisers; multi-access systems; spread spectrum communication; transceivers; diversity gain; multicode multiple access system; spread-spectrum mode; symbol-level frequency domain equalizer; transceiver scheme; Analytical models; Direct-sequence code-division multiple access; Diversity methods; Equalizers; Frequency conversion; Frequency domain analysis; Multiaccess communication; Multicarrier code division multiple access; Spread spectrum communication; Transceivers;
Conference_Titel :
Communications, 2008. ICC '08. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2075-9
Electronic_ISBN :
978-1-4244-2075-9
DOI :
10.1109/ICC.2008.814
