Title :
Trellis codes for periodic erasures
Author :
Wesel, Richard D. ; Liu, Xueting ; Shi, Wei
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
6/1/2000 12:00:00 AM
Abstract :
This paper describes techniques for the design and analysis of trellis codes that provide reliable communication over every channel in a specified set of possible channels, where each channel is characterized by additive white Gaussian noise with a distinct periodic variation in signal-to-noise ratio. An important practical application for such trellis codes is the periodic erasure channel produced by partial-band interference dispersed by a block interleaver. We present trellis codes that provide reliable communication over all periodic erasure patterns of a given period for which the number of unerased coded bits per period is at least equal to the number of information bits per period
Keywords :
interference (signal); interleaved codes; trellis codes; Reed-Solomon code; SNR; additive white Gaussian noise; block interleaver; communication channel; information bits per period; partial-band interference; periodic erasure channel; periodic erasure patterns; reliable communication; signal-to-noise ratio; trellis codes; unerased coded bits per period; AWGN; Additive white noise; Attenuation; Convolutional codes; Design optimization; Interference; Signal analysis; Signal design; Signal to noise ratio; Transmitters;
Journal_Title :
Communications, IEEE Transactions on
