Graduate Profiles 2012 - National University of Science and ...
Graduate Profiles 2012 - National University of Science and ...
Graduate Profiles 2012 - National University of Science and ...
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IMPLEMENTATION OF NARROWBAND AND WIDEBAND WAVEFORMS FOR SDRIn today‘s fast evolving world the technological growth in the field <strong>of</strong> WirelessCommunication is extensive. Unfortunately conventional radio devices have limitedcross-functionality. Hence the concept <strong>of</strong> SDR came into being. S<strong>of</strong>tware Defined Radiotechnology aims to take advantage <strong>of</strong> programmable hardware modules to build Openarchitecturebased radio system s<strong>of</strong>tware. This leads to device flexibility, s<strong>of</strong>twareportability <strong>and</strong> system upgradability.This project focuses to develop VHF/UHF Narrowb<strong>and</strong> <strong>and</strong> Wideb<strong>and</strong> waveforms forexisting SDR platforms. The narrowb<strong>and</strong> waveform based on frequency modulation(FM) designed for audio transmission <strong>and</strong> OFDM Wideb<strong>and</strong> waveform designed fordata transmission coded in C++ <strong>and</strong> Python are implemented on the platform. OFDM ischosen so as to achieve higher data rate. It is spectrally efficient <strong>and</strong> is a sensationaltechnology that has found its way into the most important st<strong>and</strong>ards for wirelesscommunications. In the new generation called 4G, in which the main st<strong>and</strong>ards are theIEEE 802.16 (Worldwide Interoperability for Microwave Access (WiMAX)) <strong>and</strong> the3GPP‘s Long Term Evolution (LTE).Amongst the wide choice <strong>of</strong> commercially available SDR platforms, such as the DSP,GPP, FPGA, the GPP with USRP as the RF frontend is being used in the project. TheGeneral Purpose Processor used in this project is not the computer‘s processor but theBeagleboard-xM. The Beagleboard-xM is equipped with a Cortex A8 1GHz processor.The USRP board in conjunction with a RF daughterboard, a Beagleboard-xM <strong>and</strong> GNUradio S<strong>of</strong>tware is being used.The project envisions creating a st<strong>and</strong>alone S<strong>of</strong>tware Defined Radio device dedicatedto the transmission <strong>and</strong> reception <strong>of</strong> the indigenously developed VHF/UHF Narrowb<strong>and</strong><strong>and</strong> Wideb<strong>and</strong> waveforms. The project will help to intrinsically maximize the benefits <strong>of</strong>SDR by providing waveforms to manufacturers building commercial base stations,mobiles <strong>and</strong> small form-factor h<strong>and</strong>held radios to allow them to reap the practicalbenefits <strong>of</strong> reusable, maintainable code. It will also pave the path for the furtherdevelopment <strong>of</strong> the telecommunication <strong>and</strong> information technology industry in Pakistan,making them capable to <strong>of</strong>fer system based on latest wireless reconfigurabletechnologies.Syndicate Members: Sarah Shahid SahibzadaAatqa HussainQurat-ul-AinMidhat JavaidSupervisor:Dr Adnan Rashidi9
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