作者
Muhammad Izzat Amir Mohd Nor, Mohd Azri Mohd Izhar, Norulhusna Ahmad, Hazilah Md Kaidi
发表日期
2018/8/1
期刊
International Journal of Electrical & Computer Engineering (2088-8708)
卷号
8
期号
4
简介
Traditionally, it is assumed that source coding is perfect and therefore, the redundancy of the source encoded bit-stream is zero. However, in reality, this is not the case as the existing source encoders are imperfect and yield residual redundancy at the output. The residual redundancy can be exploited by using Joint Source Channel Coding (JSCC) with Markov chain as the source. In several studies, the statistical knowledge of the sources has been assumed to be perfectly available at the receiver. Although the result was better in terms of the BER performance, practically, the source correlation knowledge were not always available at the receiver and thus, this could affect the reliability of the outcome. The source correlation on all rows and columns of the 2D sources were well exploited by using a modified Bahl-Cocke-Jelinek-Raviv (BCJR) algorithm in the decoder. A parameter estimation technique was used jointly …
学术搜索中的文章
MI Amir Mohd Nor, MA Mohd Izhar, N Ahmad, HM Kaidi - International Journal of Electrical & Computer …, 2018