Title :
Performance aspects of linear multiuser receivers
Author :
Ninness, Brett ; Weller, Steven R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Newcastle Univ., NSW, Australia
Abstract :
Previous analysis of linear multiuser receivers for DS-CDMA signals has considered the signal-to-interference (SIR) performance in large systems with each user employing random spreading sequences. Unfortunately, it is only in the special case of the received powers of all users being equal that a resulting integral equation for the SIR has an explicit solution with demonstrable approximation accuracy for finite-sized systems. This paper presents an alternative approach to calculating the SIR performance of MMSE receivers which relies primarily on the law of large numbers, and provides an estimate for the SIR that is valid for arbitrary distributions of the received interferer power
Keywords :
code division multiple access; least mean squares methods; multiuser channels; radio receivers; radiofrequency interference; spread spectrum communication; DS-CDMA signals; MMSE receivers; SIR estimation; SIR performance; approximation accuracy; finite-sized systems; integral equation; linear multiuser receivers; performance; random spreading sequences; received interferer power; signal-to-interference performance; Background noise; Gaussian noise; Integral equations; Interference; Multiaccess communication; Performance analysis; Signal analysis; Signal processing; Stochastic processes; Vectors;
Conference_Titel :
Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-6451-1
DOI :
10.1109/GLOCOM.2000.891663
