Title :
Orthogonal multicarrier bandwidth modulation scheme for wireless communications
Author :
Ma, Yi ; Huang, Yi ; Al-Nuaimy, Waleed ; Xiong, Yiyuau
Author_Institution :
Dept. of Electr. Eng. & Electron., Liverpool Univ., UK
Abstract :
A new orthogonal multicarrier bandwidth modulation (OMBM) scheme is proposed in this paper. The distinct feature of this scheme is that the frequency domain data is used to decide the number of orthogonal subcarriers for wireless transmissions. Different bandwidth of the OMBM symbol in the time domain reflects on the different data in the frequency domain. A discrete Fourier transform (DFT) based minimum mean square error (MMSE) estimator is employed to conduct the bandwidth detection. Analysis and simulation results demonstrate that the OMBM scheme is a flexible modulation structure and not sensitive to noise interference. Some properties and possible application of the OMBM code are also introduced.
Keywords :
OFDM modulation; bandwidth allocation; demodulation; discrete Fourier transforms; frequency estimation; least mean squares methods; mobile radio; DFT; MMSE estimator; OFDM; OMBM code; OMBM symbol; bandwidth detection; discrete Fourier transform; frequency domain data; minimum mean square error; orthogonal multicarrier bandwidth modulation; orthogonal subcarriers; wireless communications; Analytical models; Bandwidth; Baseband; Discrete Fourier transforms; Frequency domain analysis; Frequency estimation; Interference; Mean square error methods; OFDM modulation; Wireless communication;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on
Print_ISBN :
0-7803-7589-0
DOI :
10.1109/PIMRC.2002.1046505
