Title :
An Error Probability Analysis of STBC MC-CDMA with Frequency-Correlated Subcarriers
Author :
Lodhi, A. ; Said, F. ; Dohler, M. ; Aghvami, A.H.
Author_Institution :
Centre for Telecommun. Res., King´´s Coll. London, London
Abstract :
The performance of a space-time block coded (STBC) multicarrier code division multiple-access (MC- CDMA) system operating in Nakagami-m fading channel with correlated subcarriers is investigated. Independency among MC-CDMA subcarriers is often assumed in literature which leads to idealistic performance bounds. The contribution of this paper is the derivation of closed-form expressions of the symbol error probabilities. We use the moment generating function (MGF) of the correlated Nakagami-m random variable (RV) to calculate the closed-form average symbol error rates (SERs) of binary and M-QAM signals with maximum ratio combining detection technique. Both, numerical and simulation results are presented, showing an excellent agreement.
Keywords :
Nakagami channels; binary codes; block codes; code division multiple access; error analysis; probability; space-time codes; M-QAM signals; Nakagami-m fading channel; STBC MC-CDMA; binary signals; closed-form average symbol error rates; closed-form expressions; error probability analysis; frequency-correlated subcarriers; maximum ratio combining detection technique; moment generating function; multicarrier code division multiple-access system; random variable; space-time block coded; Closed-form solution; Error analysis; Error probability; Fading; Frequency; Multiaccess communication; Multicarrier code division multiple access; Numerical simulation; Random variables; Signal generators;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0062-7
Electronic_ISBN :
1-4244-0063-5
DOI :
10.1109/VTCF.2006.88
