Frequency domain equalization for single-carrier broadband wireless systems

Author

Falconer, David ; Ariyavisitakul, Sirikiat Lek ; Benyamin-Seeyar, Anader ; Eidson, Brian

Author_Institution

Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, Ont., Canada

Volume

40

Issue

4

fYear

2002

fDate

4/1/2002 12:00:00 AM

Firstpage

58

Lastpage

66

Abstract

Broadband wireless access systems deployed in residential and business environments are likely to face hostile radio propagation environments, with multipath delay spread extending over tens or hundreds of bit intervals. Orthogonal frequency-division multiplex (OFDM) is a recognized multicarrier solution to combat the effects of such multipath conditions. This article surveys frequency domain equalization (FDE) applied to single-carrier (SC) modulation solutions. SC radio modems with frequency domain equalization have similar performance, efficiency, and low signal processing complexity advantages as OFDM, and in addition are less sensitive than OFDM to RF impairments such as power amplifier nonlinearities. We discuss similarities and differences of SC and OFDM systems and coexistence possibilities, and present examples of SC-FDE performance capabilities

Keywords

OFDM modulation; broadband networks; business communication; delays; equalisers; frequency-domain analysis; modems; multipath channels; OFDM; RF impairments; SC radio modems; broadband wireless access; business environments; efficiency; frequency domain equalization; low signal processing complexity; multicarrier solution; multipath delay spread; orthogonal frequency-division multiplexing; power amplifier nonlinearities; radio propagation environments; residential environments; single-carrier broadband wireless systems; single-carrier modulation; Broadband amplifiers; Delay; Frequency division multiplexing; Frequency domain analysis; Intersymbol interference; Modems; OFDM modulation; Power amplifiers; Quadrature amplitude modulation; Telecommunication standards;

fLanguage

English

Journal_Title

Communications Magazine, IEEE

Publisher

ieee

ISSN

0163-6804

Type

jour

DOI

10.1109/35.995852

Filename

995852