Title :
Overlapped complex-modulated transmultiplexer filters with simplified design and superior stopbands
Author :
Mirabbasi, Shahriar ; Martin, Ken
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of British Columbia, Vancouver, BC, Canada
Abstract :
A simple method for the design of the finite-impulse-response prototype filter for maximally decimated overlapped complex-modulated transmultiplexers with near perfect reconstruction property is presented. The procedure is unified for all values of overlap factor and leads to a prototype filter with excellent frequency selectivity and fast sidelobe fall-off rate. The high stopband attenuation and fast sidelobe fall-off rate, which is justified analytically, make the proposed filters suitable candidates for high-speed data communication applications employing multicarrier modulation.
Keywords :
FIR filters; filtering theory; frequency response; transmultiplexing; FIR prototype filter design; fast sidelobe fall-off rate; filter banks; finite-impulse-response filter; frequency selectivity; high stopband attenuation; high-speed data communication applications; multicarrier modulation; near perfect reconstruction property; overlapped complex-modulated transmultiplexer filters; Attenuation; Channel bank filters; Degradation; Digital modulation; Discrete Fourier transforms; Filter bank; Finite impulse response filter; Narrowband; OFDM modulation; Prototypes;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
DOI :
10.1109/TCSII.2003.813592
