Title :
A digital transmission system with very high immunity to dynamic multipath distortion
Author :
Williams, Thomas H.
Author_Institution :
Holtzman Inc., Longmont, CO, USA
fDate :
3/1/1999 12:00:00 AM
Abstract :
This paper describes a novel solution to the problem of bandwidth-efficient digital signal transmission in the presence of dynamic multipath distortion. A burst transmission is comprised of two consecutive data blocks with identical data that have been processed differently. The two data blocks are transmitted adjacent to each other in time so that the time-variable transmission channel will apply approximately the same linear distortion to each block. At the receive site, the two blocks are captured and processed together to cancel the effects of the linear distortion, while adding the signal energy from each block
Keywords :
OFDM modulation; adaptive equalisers; data communication; digital communication; multipath channels; time-varying channels; OFDM; adaptive equalizer; bandwidth-efficient digital signal transmission; burst transmission; data blocks; data processing; digital transmission system; dynamic multipath distortion immunity; hardware tests; identical data; linear distortion; receive site; signal energy; time-variable transmission channel; Adaptive equalizers; Bit error rate; Delay effects; Distortion; Finite impulse response filter; Frequency domain analysis; Frequency shift keying; Multiaccess communication; Quadrature amplitude modulation; Signal processing;
Journal_Title :
Broadcasting, IEEE Transactions on
