A high efficient and interference resistant half-chip offset QPSK-CDMA scheme for wireless LAN systems

Author

Sugiyama, Takatoshi ; Mizoguchi, Masato ; Kubota, Shuji ; Kato, Shuzo

Author_Institution

Wireless Syst. Lab., NTT, Japan

Volume

3

fYear

1995

fDate

14-16 Nov 1995

Firstpage

2166

Abstract

This paper proposes a half-chip offset QPSK (quadrature phase shift keying) modulation CDMA (code division multiple access) scheme to allow the simple differential detection while realizing a compact spectrum in nonlinear channels for wireless LAN (local area network) systems. The experimental results show the proposed scheme combined with forward error correction (FEC) achieves excellent Pe performances in adjacent channel interference (ACI) and co-channel interference (CCI) environments and significantly improves the frequency utilization efficiency

Keywords

adjacent channel interference; cochannel interference; code division multiple access; coding errors; demodulation; error statistics; forward error correction; performance evaluation; probability; quadrature phase shift keying; radiofrequency interference; wireless LAN; FEC; adjacent channel interference; cochannel interference; code division multiple access; compact spectrum; differential detection; error probability; experimental results; forward error correction; frequency utilization efficiency; half-chip offset QPSK-CDMA; interference resistance; local area network; nonlinear channels; quadrature phase shift keying; wireless LAN; wireless LAN systems; Forward error correction; Interchannel interference; Local area networks; Modulation coding; Multiaccess communication; Phase detection; Phase modulation; Quadrature phase shift keying; Radiofrequency interference; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1995. GLOBECOM '95., IEEE

Print_ISBN

0-7803-2509-5

Type

conf

DOI

10.1109/GLOCOM.1995.502787

Filename

502787