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Nje Metode Data Fusion
per Wireless Sensor
Networks
Punoi:Ethem Qato
Qellimi
n
n Prezantimi me nje metode te bazuar ne
logjiken fuzzy qe synon rritjen e QOS-it
dhe uljen e konsumit te energjise te WSN
Permbajtja
n Modeli I nje sistemi WSN
n Paraqitja e problemit
n Metoda e propozuar
n Krahasimi me dy modele baze dhe analiza e
performances
n Perfundime
n
Modeli I sistemit WSN
n Konsiderohet nje rrjete WSN me shume sensore te
organizuar ne cluster
n 3 nyje qe marrin te dhena per temperaturen,
lageshtiren dhe dendesine e tymit
n Cdo nyje perdor FLC per te caktuar nje “weight” data-ve
n Data dergohet ne CH qe eshte e lidhur me BS
n
n
Paraqitja e problemit
n Pasiguri ne matje te sensorit
n Teprice ne data e marra nga sensoret
n Data duplikate cojne ne
¨ Perplasje paketash
¨ Shperdorim bandwidth
¨ Konsum I tepert energjie
n Keqfunksionimi I nyjeve ndikon negativisht ne
mekanizmin e data aggregation
¨
Paraqitja e problemit(2)
█ Objektivi eshte maksimizimi I jetegjatesise se rrjetit
Metoda e propozuar
n Sensoret pajisen me nje FLC qe ka si qellim gjetjen e
faktorit te besimit
n FLC jep nje faktor besimi(CF1,CF2…CFn) per cdo sensor
data(D1,D2…Dn)
Metoda e propozuar(2)
Analiza e performances
n Analiza e performances behet ne tre aspekte kryesore
¨ Mbledhjen e te dhenave
¨ Numrin e paketave data te transmetuara
¨ Konsumin e energjise
¨
n FIM
n VWFFA
Mbledhja e te dhenave
n Metoda e propozuar jep nje perqindje te larte te te dhenave
te sakta
n Eleminohen te dhenat e paskata ne menyre qe te shmanget
korruptimi I vlerave true gjate procesit te fusionit
Paketat data te transmetuara
n Metoda e propozuar ka nje numer me te vogel paketash
te transmetuara ne krahasim me FIM dhe VWFFA
n Do te transmetohen vetem datat e vlersuara true
ndryshe nga rastet e tjera
Konsumi energjise
█ Cdo bit I transmetuar ne WSN konsumon energji sa
ekzekutimi I 800-1000 instruksione
█ Me pak data e transmetuar do te thote reduktim te
konsumit te energjise
Perfundime
n Metoda e propozuar mundeson gjetjen dhe vecimin e
vlerave true te data-ve te mbledhura dhe eliminon
tepricen duke sjelle uljen e konsumit te energjise dhe
per pasoje rritjen e jetegjatesise se rrjetit
n
n Analizat e performances tregojne qe algoritmi eshte me
efektiv ne krahasim me metodat baze FIM dhe
VWFFA ne aspektin e cilesise te sjelle nga data fusion
Faleminderit per vemendjen!

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Metode data fusion per wireless sensor networks

  • 1. Nje Metode Data Fusion per Wireless Sensor Networks Punoi:Ethem Qato
  • 2. Qellimi n n Prezantimi me nje metode te bazuar ne logjiken fuzzy qe synon rritjen e QOS-it dhe uljen e konsumit te energjise te WSN
  • 3. Permbajtja n Modeli I nje sistemi WSN n Paraqitja e problemit n Metoda e propozuar n Krahasimi me dy modele baze dhe analiza e performances n Perfundime n
  • 4. Modeli I sistemit WSN n Konsiderohet nje rrjete WSN me shume sensore te organizuar ne cluster n 3 nyje qe marrin te dhena per temperaturen, lageshtiren dhe dendesine e tymit n Cdo nyje perdor FLC per te caktuar nje “weight” data-ve n Data dergohet ne CH qe eshte e lidhur me BS n n
  • 5. Paraqitja e problemit n Pasiguri ne matje te sensorit n Teprice ne data e marra nga sensoret n Data duplikate cojne ne ¨ Perplasje paketash ¨ Shperdorim bandwidth ¨ Konsum I tepert energjie n Keqfunksionimi I nyjeve ndikon negativisht ne mekanizmin e data aggregation ¨
  • 6. Paraqitja e problemit(2) █ Objektivi eshte maksimizimi I jetegjatesise se rrjetit
  • 7. Metoda e propozuar n Sensoret pajisen me nje FLC qe ka si qellim gjetjen e faktorit te besimit n FLC jep nje faktor besimi(CF1,CF2…CFn) per cdo sensor data(D1,D2…Dn)
  • 9. Analiza e performances n Analiza e performances behet ne tre aspekte kryesore ¨ Mbledhjen e te dhenave ¨ Numrin e paketave data te transmetuara ¨ Konsumin e energjise ¨ n FIM n VWFFA
  • 10. Mbledhja e te dhenave n Metoda e propozuar jep nje perqindje te larte te te dhenave te sakta n Eleminohen te dhenat e paskata ne menyre qe te shmanget korruptimi I vlerave true gjate procesit te fusionit
  • 11. Paketat data te transmetuara n Metoda e propozuar ka nje numer me te vogel paketash te transmetuara ne krahasim me FIM dhe VWFFA n Do te transmetohen vetem datat e vlersuara true ndryshe nga rastet e tjera
  • 12. Konsumi energjise █ Cdo bit I transmetuar ne WSN konsumon energji sa ekzekutimi I 800-1000 instruksione █ Me pak data e transmetuar do te thote reduktim te konsumit te energjise
  • 13. Perfundime n Metoda e propozuar mundeson gjetjen dhe vecimin e vlerave true te data-ve te mbledhura dhe eliminon tepricen duke sjelle uljen e konsumit te energjise dhe per pasoje rritjen e jetegjatesise se rrjetit n n Analizat e performances tregojne qe algoritmi eshte me efektiv ne krahasim me metodat baze FIM dhe VWFFA ne aspektin e cilesise te sjelle nga data fusion