Title :
Improved Bit-Based Joint Source-Channel Decoding of Variable Length Codes
Author :
Liu, Xiaobei ; Koh, Soo Ngee ; Cheng, Tee Hiang
Author_Institution :
Nanyang Technol. Univ., Singapore
fDate :
6/1/2007 12:00:00 AM
Abstract :
Joint source channel decoding (JSCD) for variable length codes (VLCs) has been shown to be effective for error- prone channels. In this paper, we propose two schemes to enhance the performance of the existing bit-based JSCD approach for VLCs. Simulation results show that the performance of the decoder can be significantly improved, while the computational complexity is only slightly increased by using our proposed schemes.
Keywords :
Viterbi decoding; combined source-channel coding; convolutional codes; telecommunication channels; variable length codes; bit-based joint source-channel decoding; computational complexity; error-prone channels; variable length codes; Computational complexity; Computational modeling; Convolution; Convolutional codes; Decoding; Neural networks; Protection; Redundancy; Tree data structures; Viterbi algorithm;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2007.070205
