Bonferroni-type bounds for CDMA systems with nonuniform signalling
Ha H. Nguyen, Nghi Huu Tran · IEEE Communications Letters · 2005
This letter develops Bonferroni-type lower and upper bounds of the bit-error-rate (BER) performance for the optimal multiuser detector of code-division multiple access (CDMA) systems with nonuniform signalling. The bounds are shown to be very tight for all signal-to-noise ratios. The bounds are also tighter than the Verdu's bounds of the maximum-likelihood (ML) multiuser detector for the case of uniform signalling.