Title :
Modeling spatial aspects of cellular CDMA/SDMA systems
Author :
Lötter, Michiel P. ; Van Rooyen, Pieter
Author_Institution :
Alcatel AlTech Telecoms, Boksburg, South Africa
fDate :
5/1/1999 12:00:00 AM
Abstract :
The probability density functions (PDFs) describing various physical aspects of hybrid cellular code division multiple-access/space-division multiple-access (CDMA/SDMA) networks are derived. All mobile users are considered to be surrounded by a Gaussian bell shape of scattering elements, and a general rule of thumb for the standard deviation of the scattering elements is proposed. Second, in order to describe the distribution of mobile users in the cell, a general PDF describing mobile user distributions is proposed. Using the mentioned distribution a general PDF for the angle-of-arrival (AOA) of signals at the CDMA base station is derived.
Keywords :
Gaussian processes; cellular radio; code division multiple access; direction-of-arrival estimation; electromagnetic wave scattering; multipath channels; multiuser channels; probability; radiowave propagation; space division multiple access; CDMA/SDMA networks; Gaussian bell shape; angle-of-arrival; base station; cellular CDMA/SDMA systems; code division multiple-access; general PDF; general rule of thumb; mobile user distributions; probability density functions; scattering elements; space-division multiple-access; spatial aspects modeling; standard deviation; Adaptive arrays; Antenna arrays; Base stations; Cellular networks; Multiaccess communication; Probability density function; Scattering; Shape; System performance; Thumb;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.766845
