Abstract
When the joint source-channel (JSC) decoder is used for source coding over noisy channels, the JSC decoder may invent errors even though the received data is not corrupted by the channel noise, if the JSC decoder assumes the channel was noisy. A novel encoder algorithm has been recently proposed to improve the performance of the communications system under this situation. In this letter, we propose another algorithm based on conditional entropy-constrained vector quantizer to further improve the encoder. The algorithm proposed in this letter significantly improves the performance of the communications system when the hypothesized channel bit error rate is high.
| Original language | English |
|---|---|
| Pages (from-to) | 2222-2225 |
| Number of pages | 4 |
| Journal | IEICE Transactions on Communications |
| Volume | E92-B |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2009 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Software
- Computer Networks and Communications
- Electrical and Electronic Engineering
Cite this
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An improved encoder for joint source-channel decoder using conditional entropy constraint. / Park, Moonseo; Kim, Seong Lyun.
In: IEICE Transactions on Communications, Vol. E92-B, No. 6, 01.01.2009, p. 2222-2225.Research output: Contribution to journal › Article
TY - JOUR
T1 - An improved encoder for joint source-channel decoder using conditional entropy constraint
AU - Park, Moonseo
AU - Kim, Seong Lyun
PY - 2009/1/1
Y1 - 2009/1/1
N2 - When the joint source-channel (JSC) decoder is used for source coding over noisy channels, the JSC decoder may invent errors even though the received data is not corrupted by the channel noise, if the JSC decoder assumes the channel was noisy. A novel encoder algorithm has been recently proposed to improve the performance of the communications system under this situation. In this letter, we propose another algorithm based on conditional entropy-constrained vector quantizer to further improve the encoder. The algorithm proposed in this letter significantly improves the performance of the communications system when the hypothesized channel bit error rate is high.
AB - When the joint source-channel (JSC) decoder is used for source coding over noisy channels, the JSC decoder may invent errors even though the received data is not corrupted by the channel noise, if the JSC decoder assumes the channel was noisy. A novel encoder algorithm has been recently proposed to improve the performance of the communications system under this situation. In this letter, we propose another algorithm based on conditional entropy-constrained vector quantizer to further improve the encoder. The algorithm proposed in this letter significantly improves the performance of the communications system when the hypothesized channel bit error rate is high.
UR - http://www.scopus.com/inward/record.url?scp=77956594502&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77956594502&partnerID=8YFLogxK
U2 - 10.1587/transcom.E92.B.2222
DO - 10.1587/transcom.E92.B.2222
M3 - Article
AN - SCOPUS:77956594502
VL - E92-B
SP - 2222
EP - 2225
JO - IEICE Transactions on Communications
JF - IEICE Transactions on Communications
SN - 0916-8516
IS - 6
ER -