Improving a Power Line Communications Standard with LDPC Codes
We investigate a power line communications (PLC) scheme that could be used to enhance the HomePlug 1.0 standard, specifically its ROBO mode which provides modest throughput for the worst case PLC channel. The scheme is based on using a low-density parity-check (LDPC) code, in lieu of the concatenate...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2007-01-01
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| Series: | EURASIP Journal on Advances in Signal Processing |
| Online Access: | http://dx.doi.org/10.1155/2007/60839 |
| _version_ | 1811278516132511744 |
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| author | Praveen Jain Wai-Yip Chan Neng Wang Christine Hsu |
| author_facet | Praveen Jain Wai-Yip Chan Neng Wang Christine Hsu |
| author_sort | Praveen Jain |
| collection | DOAJ |
| description | We investigate a power line communications (PLC) scheme that could be used to enhance the HomePlug 1.0 standard, specifically its ROBO mode which provides modest throughput for the worst case PLC channel. The scheme is based on using a low-density parity-check (LDPC) code, in lieu of the concatenated Reed-Solomon and convolutional codes in ROBO mode. The PLC channel is modeled with multipath fading and Middleton's class A noise. Clipping is introduced to mitigate the effect of impulsive noise. A simple and effective method is devised to estimate the variance of the clipped noise for LDPC decoding. Simulation results show that the proposed scheme outperforms the HomePlug 1.0 ROBO mode and has lower computational complexity. The proposed scheme also dispenses with the repetition of information bits in ROBO mode to gain time diversity, resulting in 4-fold increase in physical layer throughput. |
| first_indexed | 2024-04-13T00:37:14Z |
| format | Article |
| id | doaj.art-ef3db44130754ff6872a46cf466d1ed9 |
| institution | Directory Open Access Journal |
| issn | 1687-6172 1687-6180 |
| language | English |
| last_indexed | 2024-04-13T00:37:14Z |
| publishDate | 2007-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Advances in Signal Processing |
| spelling | doaj.art-ef3db44130754ff6872a46cf466d1ed92022-12-22T03:10:18ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61721687-61802007-01-01200710.1155/2007/60839Improving a Power Line Communications Standard with LDPC CodesPraveen JainWai-Yip ChanNeng WangChristine HsuWe investigate a power line communications (PLC) scheme that could be used to enhance the HomePlug 1.0 standard, specifically its ROBO mode which provides modest throughput for the worst case PLC channel. The scheme is based on using a low-density parity-check (LDPC) code, in lieu of the concatenated Reed-Solomon and convolutional codes in ROBO mode. The PLC channel is modeled with multipath fading and Middleton's class A noise. Clipping is introduced to mitigate the effect of impulsive noise. A simple and effective method is devised to estimate the variance of the clipped noise for LDPC decoding. Simulation results show that the proposed scheme outperforms the HomePlug 1.0 ROBO mode and has lower computational complexity. The proposed scheme also dispenses with the repetition of information bits in ROBO mode to gain time diversity, resulting in 4-fold increase in physical layer throughput.http://dx.doi.org/10.1155/2007/60839 |
| spellingShingle | Praveen Jain Wai-Yip Chan Neng Wang Christine Hsu Improving a Power Line Communications Standard with LDPC Codes EURASIP Journal on Advances in Signal Processing |
| title | Improving a Power Line Communications Standard with LDPC Codes |
| title_full | Improving a Power Line Communications Standard with LDPC Codes |
| title_fullStr | Improving a Power Line Communications Standard with LDPC Codes |
| title_full_unstemmed | Improving a Power Line Communications Standard with LDPC Codes |
| title_short | Improving a Power Line Communications Standard with LDPC Codes |
| title_sort | improving a power line communications standard with ldpc codes |
| url | http://dx.doi.org/10.1155/2007/60839 |
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