A unified analysis for coded DS-CDMA with equal-gain chip combining in the downlink of OFDM systems
Artikel i vetenskaplig tidskrift, 2005

This paper presents a novel unified analysis for the bit-error rate in the downlink of convolutionally coded and single-user detected multicarrier code-division multiple access (CDMA), multicarrier direct-sequence CDMA, time and frequency-domain spreading CDMA, and orthogonal frequency-division multiple access. Performance is analyzed under the assumption of Hadamard spreading codes, equal-gain chip combining, and a highly correlated frequency-selective Rayleigh-fading channel. Closed-form expressions are presented for the cumulative distribution function, probability distribution function, and moment-generating function for the signal-to-noise plus interference ratio after despreading. The presented results assume error-free channel estimates, a perfectly synchronized receiver, and are found to reasonably well agree with simulation results. © 2005 IEEE.

ofdm

cdma

Författare

Anders Persson

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Tony Ottosson Gadd

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Erik Ström

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

IEEE Transactions on Communications

0090-6778 (ISSN)

Vol. 53 289-298

Ämneskategorier

Data- och informationsvetenskap

DOI

10.1109/TCOMM.2004.841987