Title :
Analytical Study of the Rotation Spreading Matrix of Block Spread OFDM with MMSE Equalization
Author :
Raad, Ibrahim S. ; Huang, Xiaojing
Author_Institution :
Sch. of Electr., Comput. & Telecommun. Eng., Univ. of Wollongong, Wollongong, NSW
Abstract :
This paper presents an analytical study on the new spreading matrix for block spread OFDM known as the rotation spreading matrix and simulates the BER performance in the MMSE equation. In (I. Raad et al., 2006) a new spreading matrix was presented for block spread OFDM (BSOFDM) known as the rotation spreading matrix. It was shown to greatly improve on the existing spreading matrices such as the Hadamard and the rotated Hadamard matrices in frequency selective channels such as the ultra wide band and slow fading channels. This paper studies the effect of increasing the block size in BSOFDM using this new matrix.
Keywords :
Hadamard matrices; OFDM modulation; fading channels; least mean squares methods; BER performance; Hadamard matrices; MMSE equalization; block spread OFDM; fading channels; frequency selective channels; rotation spreading matrix; ultra wide band channels; Bit error rate; Decoding; Equations; Error correction; Error correction codes; Fading; OFDM; Performance analysis; Telecommunication computing; Vectors; Block Spread OFDM; Frequency selective channel; MMSE decoder; Rotation Spreading Matrix;
Conference_Titel :
Information and Communication Technologies: From Theory to Applications, 2008. ICTTA 2008. 3rd International Conference on
Conference_Location :
Damascus
Print_ISBN :
978-1-4244-1751-3
Electronic_ISBN :
978-1-4244-1752-0
DOI :
10.1109/ICTTA.2008.4530237
