Multi Carrier CDMA Performance

Local-mean Bit Error Rate for MC-CDMA versus Eb/N0 in a dispersive Rayleigh-fading channel with independent fading at adjacent subcarriers. Synchronous downlink with spread factor N and N simultaneous users. Receiver: adaptive wiener filtering.

(1) Analytical expression for infinitely many subcarriers

(2) 64 subcarriers (N = 64)

(3) Single subcarrier, same result as avarage BER in slowly fading, non-dispersive Rayleigh fading channel

(4) Standard erfc function for AWGN LTI non-dispersive channel

From: [.ps] N. Yee and J.P.M.G. Linnartz , "Wiener filtering for Multi-Carrier CDMA", IEEE Conf. on Personal Indoor Mobile Radio Communications (PIMRC), The Hague, September 19-23, 1994, Vol. 4, pp. 1344-1347.