Title :
High performance WH-spread SC-I/OFDM system
Author :
Metkarunchit, Triratana
Author_Institution :
Dept. of Inf. Technol., Thai-Nichi Inst. of Technol., Bangkok, Thailand
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;
Conference_Titel :
Digital Information, Networking, and Wireless Communications (DINWC), 2015 Third International Conference on
Conference_Location :
Moscow
Print_ISBN :
978-1-4799-6375-1
DOI :
10.1109/DINWC.2015.7054219
