Design of Asymmetric VQ Codebooks Incorporating Channel Coding

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概要

• 論文の詳細を見る

• In this paper, a communication system using vector quantization (VQ) and channel coding is considered. Here, a design scheme has been proposed to optimize source codebooks in the transmitter and the receiver. In the proposed algorithm, the overall distortion including both the quantization error and channel distortion is minimized. The proposed algorithm is different from the previous work by the, facts that the channel encoder is used in the VQ-based communication system, and the source VQ codebook used in the transmitter is different from the one used by the receiver, i. e. asymmetric VQ system. And the bounded-distance decoding (BDD) technique is used to combat the ambiguousness in the channel decoder. We can see from the computer simulations that the optimized system based on the proposed algorithm outperforms a conventional system based on a symmetric VQ codebook. Also, the proposed algorithm enables a reliable image communication over noisy channels.

• （社）電子情報通信学会の論文
• 2008-08-01

著者

• HAN Jong-Ki

  Dept. of Information and Communications Engineering, Sejong University

• Han Jong-ki

  Dept. Of Information And Communications Engineering

• Kim Jae-gon

  Dept. Of Telecommunication & Computer Engineering School Of Electronics Korea Aerospace Universi

関連論文

• Fast Fine Granularity Scalability Decoding Scheme for Low-Delay Scalable Video Coding Applications
• Design of Asymmetric VQ Codebooks Incorporating Channel Coding

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