Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Performance Analysis of 3-hop using DAF and DF over 2-hop Relaying Protocols
Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap.
Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap.
2013 (engelsk)Independent thesis Advanced level (degree of Master (Two Years))Oppgave
Abstract [en]

In wireless Communication, the need of radio spectrum increases nowadays. But in the system we are losing approximately 82-86% of spectrum most of the time due to the absence of Primary User (PU). To overcome this issue Cognitive Radio (CR) is an admirable approach. The concept of cooperative communication needs to be considering because high data rate is the demand for wireless services. Cooperative diversity in the network realized by 3-hop Decode, Amplify and Forward (DAF) and Decode and Forward (DF) and in 2-hop DF and Amplify and Forward (AF) Protocols implemented in cognitive radio communication network using Orthogonal Space Time Block Coding (OSTBC). The communication between end points is accomplished by using Multiple Input and Multiple Output (MIMO) antenna arrangement. During the Propagation, Alamouti Space Time Block Coding is used to accomplish spatial diversity and the encoded data is transmitted through Rayleigh fading channel. CR decodes the transmitted signal using Maximum Likelihood (ML) decoding method. Afterward signal broadcast toward the destination. To check the energy level of signal, energy detection technique applies at the Cognitive Controller (CC). Finally, CC will take ultimate decision for the presence of primary user if the energy level of signal is greater than predefined threshold level, it means PU is present otherwise it is absent. The main objective of this thesis is to analyze the performance of 3-hop and 2-hop communication network using relays. The performance is compared on the bases of two parameters i.e. Bit Error Rate (BER) and Probability of Detection (PD). The results are processed and validated by MATLAB simulation.

sted, utgiver, år, opplag, sider
2013. , s. 51
Emneord [en]
Bit Error Rate, Cognitive Radio, Decode Amplify and Forward, Energy Detection, Probability of Detection, Rayleigh Fading, Relay Network
HSV kategori
Identifikatorer
URN: urn:nbn:se:bth-4229Lokal ID: oai:bth.se:arkivexFEB8DF84DF6D1C2AC1257B870077A43BOAI: oai:DiVA.org:bth-4229DiVA, id: diva2:831558
Uppsök
Physics, Chemistry, Mathematics
Veileder
Tilgjengelig fra: 2015-04-22 Laget: 2013-06-11 Sist oppdatert: 2015-06-30bibliografisk kontrollert

Open Access i DiVA

fulltekst(2769 kB)313 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 2769 kBChecksum SHA-512
309666ff88f7b234fcd71a2261662a8ad5ea900c36f211f09caba3073b2e741551cb1ff721a3f8946b6ec7b8d53a9561d778c1fa0b861e5588e2cbd74fb79849
Type fulltextMimetype application/pdf

Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 313 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

urn-nbn

Altmetric

urn-nbn
Totalt: 133 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf