A combined OFDM-CsDMA approach to cellular mobile communications

Author

Ping, Li

Author_Institution

Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, Hong Kong

Volume

47

Issue

7

fYear

1999

fDate

7/1/1999 12:00:00 AM

Firstpage

979

Lastpage

982

Abstract

We present a combined orthogonal frequency-division multiplexing (OFDM) and code-division multiple-access cellular system. It is derived from the OFDM model by introducing an extra code-shift division multiple access layer. This mitigates intercell interference without affecting intracell orthogonality and such property can be maintained in multipath environments. The new scheme is suitable for both up and down links. It retains the low-receiver complexity property of the OFDM system

Keywords

OFDM modulation; adjacent channel interference; cellular radio; code division multiple access; interference suppression; multipath channels; multiuser channels; radio links; radio receivers; OFDM system; cellular mobile communications; code-division multiple-access; code-shift division multiple access layer; combined OFDM-CsDMA approach; down link; intercell interference; intracell orthogonality; low-receiver complexity; multipath environments; orthogonal frequency-division multiplexing; up link; Convolution; Discrete Fourier transforms; Equations; Frequency synchronization; Maximum likelihood estimation; Mobile communication; Multiaccess communication; Multiple access interference; OFDM; Quadrature amplitude modulation;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.774847

Filename

774847