Title :
Performance of the MMSE multiuser detector with equicorrelated signatures
Author :
Garodia, Rohit K. ; Jain, Swati ; Mallik, Ranjan K.
Author_Institution :
Strand Life Sci. Pvt, Bangalore
Abstract :
In this letter, we analyze the performance of the minimum mean-square error (MMSE) detector for a code-division multiple-access system employing binary phase-shift keying. The performance is measured in terms of the probability distribution and the average number of correctly decoded users. We consider the case of equipower users having equicorrelated signature waveforms. The distribution of the number of correctly decoded users is expressed as an integral over sum of products of Gaussian Q-functions. From it, a closed-form expression for the average number of correctly decoded users is derived
Keywords :
code division multiple access; least mean squares methods; multiuser detection; phase shift keying; statistical distributions; Gaussian Q-functions; MMSE multiuser detector; binary phase-shift keying; code-division multiple-access system; correctly decoded users; equicorrelated signature waveforms; equipower users; minimum mean-square error detector; probability distribution; Additive white noise; Decoding; Detectors; Error probability; Multiaccess communication; Multiuser detection; Performance analysis; Phase shift keying; Probability distribution; Signal to noise ratio; Correctly decoded users; equicorrelated signature waveforms; equipower users; minimum mean-square error (MMSE) detector; multiuser detection;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2006.878822
