Multicarrier CDMA for cellular overlay systems Academic Article

abstract

• In this paper, a code-division multiple access (CDMA) cellular overlay system is investigated, employing the idea of multicarrier CDMA, which has recently received significant attention as an alternative to traditional single-carrier CDMA. Overlay is pursued here as a means of long-term transition from narrowband cellular to CDMA cellular. A major result of this paper is the demonstration that the use of multicarrier CDMA in a fading channel is particularly beneficial to the narrowband system, as the CDMA users can reduce their transmitted powers as a result of diversity. Another significant conclusion is that the use of transmitter notching in the CDMA system in order to avoid active narrowband users outperforms a strategy in which a narrowband user is avoided by simply dropping the particular carrier which overlays it. Finally, recent results on the use of the minimum mean-squared error (MMSE) receiver in a fading channel are extended for use in the overlay scenario.

authors

• Miller, Scott

published proceedings

• IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS

author list (cited authors)

• Rainbolt, B. J., & Miller, S. L.

citation count

• 16

complete list of authors

• Rainbolt, BJ||Miller, SL

publication date

• January 1999

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE Journal on Selected Areas in Communications  Journal

keywords

• Code-division Multiple Access (cdma)

Digital Object Identifier (DOI)

• 10.1109/49.793315

start page

• 1807

end page

• 1814

volume

• 17

issue

• 10

URL

• http%3A%2F%2Fdx.doi.org%2F10.1109%2F49.793315