CONVOLUTIONAL INTERLEAVING FOR DIGITAL RADIO COMMUNICATIONS - Universal Personal Communications, 1993. 'Personal Communications: Gateway to the 21st Century'. C
نویسنده
چکیده
Interleaving enhances the quality of digital transmission over the radio fading channel. This enhancement comes at the cost of introducing additional time-delay, memory space requirements, and system complexity. This paper describes commonly used interleaving techniques. It addresses the realization and performance of a convolutional interleaver that cuts down time-delay and memory space increase considerably. Base-band computer simulations are presented for convolutionally coded and interleaved QPSK transmission over Rayleigh and Rician flat-fading channels at different interference levels.
منابع مشابه
STATISTICAL MODELING OF SIGNAL AMPLITUDE FADING OF INDOOR RADIO PROPAGATION CHANNELS - Universal Personal Communications, 1993. 'Personal Communications: Gateway to the 21st Century'. C
Small-scale and large-scale variations of signal amplitude for wideband data collected at two office buildings have been investigated. The data base includes 12000 impulse response estimates which were obtained by inverse Fourier transforming of the channel's frequency response profiles. Extensive curve fitting for the distribution of individual multipath components' amplitudes using elaborate ...
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