Impact of variability of Nakagami-m parameter on the performance of digital communication systems
| dc.contributor.author | MUHAMMAD IMRAN AZAM | |
| dc.date | 2006 | |
| dc.date.accessioned | 2022-05-18T05:04:43Z | |
| dc.date.available | 2022-05-18T05:04:43Z | |
| dc.degree.department | College of Engineering Sciences and Applied Engineering | |
| dc.degree.grantor | King Fahad for Petrolem University | |
| dc.description.abstract | ﻟﻘﺩ ﺘﻤﺕ ﺩﺭﺍﺴﺔ ﺘﺎﺜﻴﺭﺘﻐﻴﺭ ﺍﻟﻤﺴﺎﻓﺔ ﺒﻴﻥ ﺍﻟﻨﻘﺎل ﻭ Nakagam ﺍﻟﻤﺤﻁﺔ ﺍﻟﺜﺎﺒﺘﺔ ﻋﻠﻰ ﺍﻟﻤﻘﺩﺍﺭ i-m. ﻟﻬﺫﺍ ﺍﻟﻐﺭﺽ ﺘﻡ ﺘﻁﻭﻴﺭ ﻨﻤﻭﺫﺝ ﻟﻤﺴﺎﺭ ﺍﻟﻔﻘﺩ ﻭ ﺍﻟﺫﻱ ﻴﺠﺩ ﺍﻟﻘﻭﺓ ﺍﻟﻤﺒﺎﺸﺭﺓ ﻭ ﺍﻟﻤﺘﺸﺘﺘﺔ ﻋﻨﺩ ﺍﻟﻤﺤﻁﺔ ﺍﻟﺜﺎﺒﺘﺔ . ﻭ ﺘﻡ ﺘﻘﺩﻴﻡ ﺘﺎﺜﻴﺭ Nakagam ﻫﺫﺍ ﺍﻻﺨﻴﺭ ﻋﻠﻰ i-m . Γ ﻟﻤﺨﺘﻠﻑ ﺘﻭﺯﻴﻌﺎﺕ ﻤﻌﺎﻤل ﺍﻻﻨﻌﻜﺎﺱ ﻟﻘﺩ ﻭﺠﺩ m ﺒﺎﻥ ﺍﻟﺘﻭﺯﻴﻊ ﺍﻻﺴﻲ ﻴﻌﻁﻲ ﻗﻴﻡ ﺍﻜﺒﺭ ل . Gaussian ﺒﺎﻟﻤﻘﺎﺭﻨﺔ ﻤﻊ ﺍﻟﺘﻭﺯﻴﻊ ﺍﻟﺨﻁﻲ ﻭ ﺍﻟﻨﺼﻑ ﺍﻟﺘﻐﻴﺭ ﻓﻲ ﺘﺭﺩﺩ ﺍﻟﻤﻭﺠﺔ ﺍﻟﻌﺎﻤﻠﺔ ﻴﺅﺜﺭ ﺍﻴﻀﺎ ﻋﻠﻰ ﻭﺼﻠﺔ ﺍﻻﺘﺼﺎﻻﺕ ﺍﻟﺭﻗﻤﻴﺔ . ﻟﻘﺩ ﺘﻡ ﺍﺴﺘﺤﺩﺍﺙ ﻤﻘﺩﺍﺭ ∆ ﺠﺩﻴﺩ m ﻻﺠل ﺩﺭﺍﺴﺔ ﺍﻟﻤﺴﺎﻓﺔ ﺘﻐﻴﺭ ﺍﺩﺍﺀ ﺍﻟﻨﻅﺎﻡ ﻤﻊ ﺍﺯﺩﻴﺎﺩ . ﻟﻘﺩ ﺘﻡ ﺍﻴﻀﺎ ﻤﻼﺤﻅﺔ ﺍﻥ ﺍﺭﺘﻔﺎﻉ ﻫﻭﺍﺌﻲ Nakagam ﺍﻟﻤﺭﺴل ﻭ ﺍﻟﻤﺴﺘﻘﺒل ﻴﺅﺜﺭ ﻋﻠﻰ ﺎﻡ i-m ﻭ ﺃﻱ ﺍﺭﺘﻔﺎﻉ ﻓﻲ ﻗﻴﻤﺘﻪ ﺍﻟﻔﻌﻠﻴﺔ ﺘﺤﺴﻥ ﻤﻥ ﺍﺩﺍﺀ ﺍﻟﻨﻅ . Nak ﻟﻘﺩ ﺘﻤﺕ ﺩﺭﺍﺴﺔ ﺘﺩﻫﻭﺭ ﺍﻻﺩﺍﺀ ﻋﻨﺩ ﻤﺴﺎﻓﺎﺕ ﺍﻜﺒﺭ ﻭ ﻗﻴﻡ ﺍﺼﻐﺭ ﻟﻘﻴﻡ ﺍﻟﻤﻘﺩﺍﺭ agami-m ﻭ ﻟﻘﺩ ﺘﻡ EGC ﺘﺤﺴﻴﻥ ﻨﺴﺏ ﺍﻟﺨﻁﺎ ﺒﺎﺴﺘﻌﻤﺎل ﻤﻠﺘﻘﻁ Rake ﻟﻘﻨﻭﺍﺕ ﺍﻟﻔﻘﺩ ﺍﻟﻤﺴﻁﺢ ﻭ ﻤﻠﺘﻘﻁ ﻟﻘﻨﻭﺍﺕ ﺍﻟﻔﻘﺩ ﺍﻟﺘﺭﺩﺩﻱ ﺍﻻﻨﺘﻘﺎﺌﻲ .ﺍﻴﻀ ﻟﻘﺩ ﺘﻡ ﺎ ﺩﺭﺍﺴﺔ ﺘﺎﺜﻴﺭ ﻤﻘﺎﺩﻴﺭ ﻤﺨﺘﻠﻔﺔ ﻜﺎﺭﺘﻔﺎﻉ ﻫﻭﺍﺌﻴﺎﺕ ﺍﻟﻤﺭﺴل ﻭ ﺍﻟﻤﺴﺘﻘﺒل , ﻤﺤﻴﻁ ﺍﻻﻨﺘﺸﺎﺭ ,ﺍﻟﻌﺎﻤﻠﺔ ﺘﺭﺩﺩ ﺍﻟﻤﻭﺠﺔ , ﺘﻭﺯﻴﻌﺎﺕ ﻤﻌﺎﻤل ﺍﻻﻨﻌﻜﺎﺱ ﻭ ﺍﻟﻤﺴﺎﻓﺔ ﺒﻴﻥ ﺍﻟﻤﻠﺘﻘﻁ ﻭ ﺍﻟﻤﺸﺘﺘﺎﺕ ﻋﻠﻰ ﺍﻟﻨﻤﻭﺫﺝ ﺍﻟﻤﻘﺘﺭﺡ . ﻤﻔﺭﺩﺍﺕ :ﺍﻟﻔﻘﺩﻴﺔ ﺍﻟﻘﻨﻭﺍﺕ ,ﺍﺕ ﺍﻟﻔﻘﺩ ﺍﻟﻤﺘﻌﺩﺩ ﺍﻟﻤﺴ ﺎﺭ,ﺘﻭﺯﻴﻊ Nakagami ,ﻤﺴﺎﺭ ﺍﻟﻔﻘﺩ , ﺍﻻﻨﺘﺸﺎﺭ ,ﻤﻠﺘﻘﻁ RAKE, ﺍﻟﺘﻨ ﻭﻉ ,ﺍﻟﻤﺴﺎﻓﺔ | |
| dc.identifier.other | 4245 | |
| dc.identifier.uri | https://drepo.sdl.edu.sa/handle/20.500.14154/1655 | |
| dc.language.iso | en | |
| dc.publisher | Saudi Digital Library | |
| dc.thesis.level | Master | |
| dc.thesis.source | King Fahad for Petrolem University | |
| dc.title | Impact of variability of Nakagami-m parameter on the performance of digital communication systems | |
| dc.type | Thesis |