Multicode modulation for high-speed wireless data transmission

Author

Kuganesan, P. ; Letaief, Khaled ; Chen, Yue

Author_Institution

Hong Kong Univ. of Sci. & Technol., Kowloon, Hong Kong

Volume

2

fYear

1997

fDate

1-4 Sep 1997

Firstpage

457

Abstract

A new modulation technique, known as multicode modulation, has previously been proposed to transmit high-speed data over multipath wireless links. In this paper, we investigate the use of various combinations of orthogonal codes and signature sequences in multicode modulation and propose a low-complexity receiver structure which uses a fast Walsh transform or fast Fourier transform. To further improve system performance, we also consider the use of antenna diversity and convolutional coding. Sample numerical results which illustrate the potential of multicode modulation over multipath Rayleigh fading links are also presented

Keywords

Rayleigh channels; Walsh functions; computational complexity; convolutional codes; data communication; diversity reception; fading; fast Fourier transforms; land mobile radio; modulation coding; multipath channels; radio receivers; sequences; antenna diversity; convolutional coding; fast Fourier transform; fast Walsh transform; high-speed data; high-speed wireless data transmission; low-complexity receiver structure; modulation technique; multicode modulation; multipath Rayleigh fading links; multipath wireless links; orthogonal codes; signature sequences; system performance; Bandwidth; Data communication; Diversity reception; Fading; Fast Fourier transforms; Frequency; Modulation coding; Multipath channels; Spread spectrum communication; System performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 1997. Waves of the Year 2000. PIMRC '97., The 8th IEEE International Symposium on

Conference_Location

Helsinki

Print_ISBN

0-7803-3871-5

Type

conf

DOI

10.1109/PIMRC.1997.631040

Filename

631040