Generalized frequency hopping OFDMA through unknown frequency-selective multipath channels

Author

Zhou, Shiyu

Author_Institution

Dept. of ECE, Minnesota Univ., Minneapolis, MN

Volume

1

fYear

2000

fDate

2000

Firstpage

56

Abstract

The generalized frequency hopping (GFH) OFDMA system developed in this paper permeates FH benefits to multicarrier CDMA transmissions through unknown frequency-selective multipath channels. No single user suffers from consistent fading effects and multiuser interference is eliminated by design. Constellation-irrespective channel identifiability is guaranteed, and a host of blind channel estimation algorithms are developed, trading off complexity with performance. An important variant corresponding to fast-hopping is also addressed. Performance analysis and simulation results illustrate the merits of GFH-OFDMA relative to conventional OFDMA and long code CDMA with RAKE reception

Keywords

OFDM modulation; code division multiple access; codes; frequency division multiple access; frequency hop communication; interference suppression; multipath channels; multiuser channels; parameter estimation; radiofrequency interference; spread spectrum communication; DS-CDMA; GFH-OFDMA; RAKE reception; blind channel estimation algorithms; complexity; constellation-irrespective channel identifiability; conventional OFDMA; fast-hopping; frequency-selective multipath channels; generalized frequency hopping OFDMA; long code CDMA; multicarrier CDMA transmissions; multiuser interference elimination; performance analysis; simulation results; Analytical models; Baseband; Blind equalizers; Fading; Finite impulse response filter; Interference elimination; Interference suppression; Multiaccess communication; Multipath channels; Performance analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Confernce, 2000. WCNC. 2000 IEEE

Conference_Location

Chicago, IL

ISSN

1525-3511

Print_ISBN

0-7803-6596-8

Type

conf

DOI

10.1109/WCNC.2000.904600

Filename

904600