High performance WH-spread SC-I/OFDM system

Author

Metkarunchit, Triratana

Author_Institution

Dept. of Inf. Technol., Thai-Nichi Inst. of Technol., Bangkok, Thailand

fYear

2015

fDate

3-5 Feb. 2015

Firstpage

67

Lastpage

71

Abstract

This article objective is to introduce a novel WH-spread SC-I/OFDM system, created from the data symbol spreading with Walsh-Hadamard code in the time domain and suppressed carrier-interferometry (SC-I) code in the frequency domain to improve BER performance of the OFDM system. In the simulation, the signal is transmitted over frequency selective fading channel and affected by carrier frequency offset. As a result, it is concluded that WH-spread SC-I/OFDM performance is higher than both OFDM system and CI/OFDM system and achieves robustness to carrier frequency offset.

Keywords

Hadamard codes; OFDM modulation; Walsh functions; error statistics; fading channels; BER performance; Walsh-Hadamard code; carrier frequency offset; data symbol spreading; frequency domain; frequency selective fading channel; high performance WH-spread SC-I/OFDM system; suppressed carrier-interferometry code; time domain; Bit error rate; Fading; OFDM; Receivers; Time-domain analysis; Transmitters; Wireless communication; carrier frequency offset; orthogonal frequency division multiplex; suppressed carrier interferometry;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Information, Networking, and Wireless Communications (DINWC), 2015 Third International Conference on

Conference_Location

Moscow

Print_ISBN

978-1-4799-6375-1

Type

conf

DOI

10.1109/DINWC.2015.7054219

Filename

7054219