Improved rate-compatible low-density parity-check codes with applications to wireless channels
| dc.contributor.author | Shaikh Faisal Zaheer | |
| dc.date | 2006 | |
| dc.date.accessioned | 2022-05-18T07:07:42Z | |
| dc.date.available | 2022-05-18T07:07:42Z | |
| dc.degree.department | College of Engineering Sciences and Applied Engineering | |
| dc.degree.grantor | King Fahad for Petrolem University | |
| dc.description.abstract | آﻔﺎء ة رﻣﻮز اﻟﻨﺴﺒﺔ اﻟﻤﺘﻮاﻓﻘﺔ ﻣﻬﻤﺔ ﻟﻠﺤﺼﻮل ﻋﻠﻰ ﻃﺎﻗﺔ اﻧﺘﺎﺟﻴ]ﺔ ﻋﺎﻟﻴ]ﺔ ﻓ]ﻲ اﻷﻧﻈﻤ]ﺔ اﻟﻬﺠﻴﻨ]ﺔ ذات اﻟﻄﻠ]ﺐ اﻟﻤﻌ]ﺎد اﻻﻟ]ﻲ ﺑ ﺘﺼﺤﻴﺢ اﻟﺨﻄﺄ اﻟﺘﻘﺎدﻣﻲ اﻟﻤﺴﺘﺨﺪﻣﺔ ﻓﻲ اﻟﺸﺒﻜﺎت اﻟﺘ]ﻲ ﺗﺒ]ﺚ اﻟﻤﻌﻄﻴ]ﺎت ﺑﻄﺮﻳ ﻘ] .( ARQ/FEC) ﺔ ﺣﺰﻣﻴ]ﺔ ه]ﺬﻩ اﻟﺮﺳ]ﺎﻟﺔ ﺗﺮآﺰ ﻋﻠﻰ ﺑﻨﺎء ذ رﻣﻮز ﻣﺮاﻗﺒﺔ ﻣﺘﻜﺎﻓﺌﺔ ﻓﻌﺎﻟﺔ ا ﻣﻨﺨﻔ ت آﺜﺎﻓﺔ ﻀﺔ .( RC-LDPC) ﻋﻠﻰ ﻣﺪى ﻧﺴﺒﻲ ﻋﺮﻳﺾ : و LDPC ﺳﻴﺘﻢ اﻟﻨﻈﺮ ﻓﻲ اﺳﺘﺨﺪام ﻓﺌﺘﺎن ﻣﻦ ﻓﺌﺎت ﺷﻔﺮة ال هﺎﺗﺎن اﻟﻔﺌﺘﺎن هﻤﺎ:اوﻻ" , LDPC ﻓﺌ]ﺔ ﺷ]ﻔﺮة ال اﻟﻌﺎدﻳ]ﺔ و اﻟﺘﻲ ﺗﺘﻤﻴﺰ ﺑﺎﻻداء اﻟﺠﻴﺪ و ﻣﻌﺪل ﺣﻄﺄ ﻣﻨﺨﻔﺾ ,ﺛﺎﻧﻴﺎ" , LDPC ﻓﺌﺔ ال اﻟﻨﺼﻒ ﻋﺸﻮاﺋﻴﺔ و اﻟﺘﻲ ﺗﻘ]ﺪم اداءا " ﻣﻤ]ﺎﺛﻼ " LDPC ﻟﻔﺌﺔ ﺷﻔﺮة ال اﻟﻌﺎدﻳﺔ و اﻟﺘﻲ ﺗﻤﻜﻦ ﻣﻦ اﻟﺤﺼﻮل ﻋﻠﻰ ﻓﻚ ﺗﺸﻔﻴﺮ ﻣﻨﺨﻔﺾ اﻟﺘﻌﻘﻴ]ﺪ. RC- ﺳ]ﻴﺘﻢ ﺑﻨ]ﺎء ﻧﻈ]ﻢ ﺗﺸ]ﻔﻴﺮ LDPC .ARQ/FEC ﻓﻌﺎﻟﺔ و ﺳﻴﺘﻢ ﺗﻘﻴﻴﻤﻬﺎ ﻋﻠﻰ اﻧﻈﻤﺔ ال ARQ/FEC ﺑﺎﻟﻤﻘﺎرﻧﺔ ﻣﻊ اﻧﻈﻤ]ﺔ ال اﻟﻤﻌﻤ]ﻮل ﺑﻬ]ﺎ ﺣﺎﻟﻴ]ﺎ " , و ARQ/FEC وﺟ]ﺪ ان ﻧﻈ]ﺎم ال اﻟﻤ]ﺰود ﺑﻔﺌ]ﺔ ﺷ]ﻔﺮة ال LDPC اﻟﻨﺼ]]ﻒ ﻋﺸ]]ﻮاﺋﻲ ﻳﺘﻤﻴ]]ﺰ ﺑﻜﻮﻧ]]ﻪ ﻣ]]ﻨﺨﻔﺾ اﻟﺘﻌﻘﻴ]]ﺪ ﻓ]]ﻲ ﻓ]]ﻚ اﻟﺘﺸ]]ﻔﻴﺮ وﺗ اﻻ ﻜ]]ﻮن ﻃﺎﻗﺘ]]ﻪ ﻧﺘﺎﺟﻴ]]ﺔ ﻣﺮﺗﻔﻌ]]ﺔ ﻋﻠ]]ﻰ ﻗ]]ﻴﻢ ﻋﺎﻟﻴ SNR ﺔ اﻟﻘﻴﻤﺔ . ﺳﻴﺘﻢ اﻟﺒﺤﺚ ﻓﻲ اﺳﺘﺨﺪام ﺷﻴﻔﺮات ﻧﺼﻒ ﻋﺸﻮاﺋﻴﺔ ﻣﺘﻮاﻓﻘﺔ اﻟﻨﺴ]ﺒﺔ ﻓ]ﻲ اﻧﻈﻤ]ﺔ ﺗﻌﺘﻤ]ﺪ ﺗﻨﻮﻳ]ﻊ اﻟﺘﻌ]ﺎون اﻟﻤﺸ]ﻔﺮ و اﺧﻴ]ﺮا " , ﺳﻨ ﻘﻮم ﺑﺒﻨﺎء ﺧﻮارزﻣﻴﺔ ﻻزاﻟﺔ اﻟﺪواﺋﺮ اﻟﺼﻐﻴﺮة ﻣﻦ ﻓﺌﺔ ﺗﺸﻔﻴﺮ LDPC ال اﻟﻨﺼﻒ ﻋﺸﻮاﺋﻴﺔ. آﻠﻤـ داﻟ ﺎت ـﺔ : ﻧﺴﺒﺔ ﻣﺘﻮاﻓﻘﺔ , ,(LDPC) ﺷﻴﻔﺮة اﻟﺘﻔﻘﺪ اﻟﻤﺘﻜﺎﻓﺊ اﻟﻤﻨﺨﻔﺾ اﻟﻜﺜﺎﻓﺔ (ARQ) اﻟﻄﻠﺐ | |
| dc.identifier.other | 4621 | |
| dc.identifier.uri | https://drepo.sdl.edu.sa/handle/20.500.14154/2561 | |
| dc.language.iso | en | |
| dc.publisher | Saudi Digital Library | |
| dc.thesis.level | Master | |
| dc.thesis.source | King Fahad for Petrolem University | |
| dc.title | Improved rate-compatible low-density parity-check codes with applications to wireless channels | |
| dc.type | Thesis |