Multiservice/multirate pure CDMA for mobile communications

Future mobile communication systems should be able to support a wide range of services with different bit rates. Spread-spectrum code-division multiple-access (CDMA) techniques have attracted much attention to be employed in such a system. Different techniques of CDMA could be used to map low-, medi...

Full description

Saved in:
Bibliographic Details
Published inIEEE transactions on vehicular technology Vol. 48; no. 5; pp. 1404 - 1413
Main Authors Azad, H., Aghvami, A.H., Chambers, W.C.
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.09.1999
Institute of Electrical and Electronics Engineers
Subjects
Applied sciences
Approximation
Bandwidth
Bit rate
Channels
Code division multiple access
Exact sciences and technology
Fading
Gaussian
Interference
Mobile communication
Modulation
Multiaccess communication
Spread spectrum communication
Statistics
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Time division multiplexing
Transmission and modulation (techniques and equipments)
Wideband
Waveform
Mobile radiocommunication
Convolutional code
Gaussian channel
Multiobjective programming
Multirate system
Coherent demodulation
Phase shift keying
Experimental result
Code division multiple access
Telecommunication network
Numerical simulation
Performance analysis
Rayleigh fading
Differential modulation
Online AccessGet full text

Cover

More Information
Summary:Future mobile communication systems should be able to support a wide range of services with different bit rates. Spread-spectrum code-division multiple-access (CDMA) techniques have attracted much attention to be employed in such a system. Different techniques of CDMA could be used to map low-, medium-, and high-bit rates data into the same allocated bandwidth, including pure or wide-band CDMA, FDM/FH/CDMA, TDM/TH/CDMA, or a hybrid of these techniques. This paper investigates multirate pure CDMA using multiuser interference statistics derived for both Gaussian and Rayleigh fading channels. Approximation of multiuser/multipath interference, in general, helps in the theoretical approach to error performance evaluation and, in particular, is quite useful for simulation approach in a fading channel. Some results of a multirate pure CDMA system with two services (low- and high-bit rates), for both BPSK and DPSK modulation schemes, are presented and compared.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9545
1939-9359
DOI:10.1109/25.790513