Modulation and processing gain tradeoffs in DS-CDMA spread spectrum systems

Author

Asano, David K. ; Hayashi, Tatsuji ; Kohno, Ryuji

Author_Institution

Dept. of Inf. Eng., Shinshu Univ., Nagano, Japan

Volume

1

fYear

1998

fDate

2-4 Sep 1998

Firstpage

9

Abstract

Continuous phase modulation (CPM) schemes are examined for use in DS-CDMA spread spectrum systems. Since the power spectra of CPM schemes are narrower than BPSK schemes, a larger processing gain can be used for the same overall bandwidth after spreading. The processing gain, relative to BPSK, that can be used with CPM is calculated. As an example, it is shown that the performance of an MSK system is better than a BPSK system for an equivalent overall bandwidth

Keywords

code division multiple access; continuous phase modulation; minimum shift keying; phase shift keying; spread spectrum communication; BER; BPSK; CPM; DS-CDMA spread spectrum systems; MSK system; continuous phase modulation; modulation; performance; power spectra; processing gain; Bandwidth; Binary phase shift keying; Continuous phase modulation; Modulation coding; Multiaccess communication; Phase modulation; Power engineering and energy; Power engineering computing; Signal processing; Spread spectrum communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on

Conference_Location

Sun City

Print_ISBN

0-7803-4281-X

Type

conf

DOI

10.1109/ISSSTA.1998.726185

Filename

726185