Title :
On the transmission of a Laplacian source over an AWLN channel with bandwidth compression
Author :
Abbasi, Fereshteh ; Aghagolzadeh, Ali ; Behroozi, Hamid
Author_Institution :
Fac. of Electr. & Comput. Eng., Univ. of Tabriz, Tabriz, Iran
Abstract :
We study transmission of a memoryless Laplacian source over an average-power limited additive white Laplacian noise (AWLN) channel under bandwidth compression in two cases: 1) matched signal-to-noise ratio (SNR), 2) mismatched SNR. A hybrid digital-analog (HDA) joint source-channel coding (JSCC) scheme is proposed and show that this scheme can achieve a distortion very close to the lower bound on mean-absolute error (MAE) distortion under matched SNR conditions.
Keywords :
AWGN channels; channel coding; source coding; AWLN channel transmission; Laplacian source transmission; average-power limited additive white Laplacian noise channel; bandwidth compression; hybrid digital-analog; joint source-channel coding; matched SNR conditions; mean-absolute error distortion; memoryless Laplacian source; mismatched SNR; Bandwidth; Channel coding; Distortion measurement; Laplace equations; Rate-distortion; Signal to noise ratio; Additive white Laplacian noise (AWLN) channel; bandwidth compression; hybrid digital-analog (HDA) coding; joint source channel coding;
Conference_Titel :
Telecommunications (IST), 2012 Sixth International Symposium on
Conference_Location :
Tehran
Print_ISBN :
978-1-4673-2072-6
DOI :
10.1109/ISTEL.2012.6483071
