Title :
Polarisation diversity reception of nonorthogonal multipulse signals in multiuser Rayleigh fading channels
Author :
Buzzi, S. ; Conte, E. ; De Maio, A.
Author_Institution :
DAEIMI, Univ. degli Studi di Cassino, Italy
fDate :
4/1/2003 12:00:00 AM
Abstract :
The use of polarisation diversity techniques in conjunction with nonorthogonal multipulse modulation is considered for a multiuser communication system operating on a single-path Rayleigh fading channel. Indeed, in mobile environments multiple reflections and scattering phenomena introduce polarisation rotation of the transmitted power, and polarisation diversity is a suitable means of taking advantage of this effect. Several different two-stage receiving structures, each one relying on different amounts of a priori information on the channel status, are introduced. The performance of the proposed detectors is analysed through Monte Carlo counting techniques. It is seen that these receivers yield a remarkable performance improvement with respect to those not exploiting polarisation diversity.
Keywords :
Monte Carlo methods; Rayleigh channels; code division multiple access; diversity reception; electromagnetic wave polarisation; electromagnetic wave reflection; electromagnetic wave scattering; land mobile radio; modulation; multiuser channels; radio receivers; radiowave propagation; CDMA-based systems; Monte Carlo counting techniques; channel status; mobile environments; multiple reflections; multiple scattering; multiuser communication system; nonorthogonal multipulse modulation; nonorthogonal multipulse signals; polarisation diversity reception; polarisation rotation; receivers; single-path Rayleigh fading channel; transmitted power; two-stage receiving structures;
Journal_Title :
Communications, IEE Proceedings-
DOI :
10.1049/ip-com:20030176