Inlämning av Examensarbete / Submission of Thesis

Pir Meher Ali Shah; Ashik Gurung; Mohammad Abdul Rub , pp. 72. ING/School of Engineering, 2011.

The work

Författare / Author: Pir Meher Ali Shah, Ashik Gurung, Mohammad Abdul Rub,,
Titel / Title: Code Shift Reference Impulse Based Cooperative UWB Communication System
Abstrakt Abstract:

Ultra wideband (UWB) is a radio technology in which the transmission of information is done over a large bandwidth with very short pulses at low energy levels. UWB technology has gained a high popularity in the field of short-range
wireless communications. UWB provides significant benefits like position location capability, reduced fading effects, and higher channel capacity. UWB technology is very desirable because of its certain characteristics like low power consumption, cost reliability and simple architecture. However, UWB systems face challenges regarding system design to achieve low complexity and low cost. UWB systems need high sampling frequencies and face problems while using digital signal processing technology.

In this thesis, first, the comparison of transmitted reference (TR), multi-differential frequency shifted reference (MD-FSR) and code shifted reference (CSR) is done in terms of
BER performance and system complexity. The simulation results validate that the CSR-UWB system has better BER performance and lower complexity than MD FSR-UWB system. Secondly, cooperative communication is implemented for CSR-UWB. The system BER performance of the CSR impulse-based cooperative UWB communication system is evaluated for different number of relays and different average distances between source node and destination node. The simulations are carried out under both line of sight (LOS) and non-line of sight (NLOS) environments. The simulation results show that the performance of the system decreases with the increase in average source-to-destination distance. We also observe that the system performs better under an environment of LOS channel than under an environment of NLOS channel. Finally, the results validate that the system performs better as the number of relay nodes increases until it reaches an adequately large number.

Ämnesord / Subject: Telekommunikation - Telecommunications
Signalbehandling - Signal Processing
Elektroteknik - Electrotechnology
Nyckelord / Keywords: Transmitted Reference (TR) UWB, Frequency Shift Reference (FSR) UWB, Code Shift Reference UWB, Cooperative Communication, Impulse Radio UWB, Decode and Forward.

Publication info

Dokument id / Document id: houn-8m7l75
Program:/ Programme Magisterprogram i Elektroteknik / Master of Science in Electrical Engineering
Registreringsdatum / Date of registration: 09/30/2011
Uppsatstyp / Type of thesis: Masterarbete/Master's Thesis (120 credits)


Handledare / Supervisor: Muhammad Gufran Khan
Examinator / Examiner: JORGEN NORDBERG
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: ING/School of Engineering

+46 455 38 50 00
I samarbete med / In co-operation with: Blekinge Institute of Technology (BTH)

Files & Access

Bifogad uppsats fil(er) / Files attached: bth2011gurung.pdf (606 kB, öppnas i nytt fönster)