Title :
Spectral efficiency of low-complexity multiuser detectors
Author :
Müller, Ralf R. ; Verdu, Sergio
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., NJ, USA
Abstract :
A family of multiuser detectors is analyzed which require neither matrix inversions nor other operations with significant complexity. The time complexity per bit of most of them is independent of the number of users. Nevertheless, their spectral efficiency for random spreading sequences is shown to be not far behind that of linear MMSE detection
Keywords :
AWGN; Gaussian channels; code division multiple access; computational complexity; multiuser channels; sequences; signal detection; spectral analysis; spread spectrum communication; AWGN; Gaussian CDMA channel; additive white Gaussian noise; linear MMSE detection; low-complexity multiuser detectors; random spreading sequences; spectral efficiency; time complexity per bit; Additive white noise; Bandwidth; Decorrelation; Detectors; Matched filters; Multiaccess communication; Multiuser detection; Performance analysis; Performance gain; Polynomials;
Conference_Titel :
Information Theory, 2000. Proceedings. IEEE International Symposium on
Conference_Location :
Sorrento
Print_ISBN :
0-7803-5857-0
DOI :
10.1109/ISIT.2000.866737
