Title :
OFDM with Permutation block spreading
Author :
Moussa, Sherif ; Dahmane, Adel Omar ; Amours, Claude D. ; Hamam, Habib
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. du Quebec a Trois-Rivieres, Trois-Rivières, QC, Canada
Abstract :
In this paper, a new Orthogonal Frequency Division Multiplexing (OFDM) with Permutation block spreading scheme is introduced; the transmitted stream is divided into blocks and the data symbols in each block is used to select the spreading code. Therefore, the increased frequency diversity in the system due to spreading improves bit error rate performance in the presence of frequency selective fading channels. In addition to that the new scheme improves symbol detection due to the inherited coding in the spreading technique. Simulation results show significant improvement in BER performance for the proposed system compared with conventional OFDM.
Keywords :
OFDM modulation; block codes; diversity reception; error correction codes; fading channels; BER performance; OFDM; bit error rate performance; data symbols; error control coding; frequency diversity; frequency selective fading channels; orthogonal frequency division multiplexing; permutation block spreading scheme; symbol detection; Binary phase shift keying; Bit error rate; Encoding; Frequency diversity; OFDM; Receivers; Block processing; Detection; Error control coding; OFDM; Permutation spreading;
Conference_Titel :
GCC Conference and Exhibition (GCC), 2011 IEEE
Conference_Location :
Dubai
Print_ISBN :
978-1-61284-118-2
DOI :
10.1109/IEEEGCC.2011.5752574
