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Physical layer design and analysis of WINLAB network centric cognitive radio
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Physical layer design and analysis of WINLAB network centric cognitive radio
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ETD_2144
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http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.000051828
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eng
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theses
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Electrical and Computer Engineering
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Topic
Cognitive radio networks
Abstract
The wireless domain is ever expanding with new technologies and protocols emerging for all possible environments. Each new protocol is an improvement over the other. High performance FPGAs have entered the market with advanced signal processing capabilities which have vast resources and area to accommodate complex designs. The amalgamation of the two has given rise to programmable radios better known as cognitive radios. This thesis proposes the physical layer design and analysis of the WiNC2R- WINLAB Network Centric Cognitive Radio which is a SoC (System on Chip) based hardware platform on FPGA. This system is based on the Virtual Flow Paradigm. The key characteristic of this concept is that the protocol processing and selecting specific hardware accelerators is engaged dynamically by the software.
The WiNC2R consists of three main parts – the data layer, the interconnect layer and the control layer. All the data processing and functioning is handled by the data layer which is the focus of this thesis.
We have designed an adaptive modulator and demodulator for WiNC2R. These blocks exploit the advantages of software flexibility and hardware high speeds. It’s an inter-protocol operable processing engine that caters to all modulation schemes and can vary them on the fly. These engines show MIMO capabilities also due to their data flow independent design. The software interface to the register maps instantiated inside the processing engines which is used to configure the system before start of the frame.
We successfully sent OFDM frames implemented on Virtual Flow Paradigm across and performed timing and utilization analysis. The modulator and demodulator parameters can be conveniently setup in the software. The flexible hardware design enables fast switching between WiFi and WiMAX frames. The thesis starts with the design of top level architecture and further dig deeper the design of the Modulator and Demodulator processing engines. We then conclude with the timing and area resource analysis and discuss an improvement in design.
The WiNC2R consists of three main parts – the data layer, the interconnect layer and the control layer. All the data processing and functioning is handled by the data layer which is the focus of this thesis.
We have designed an adaptive modulator and demodulator for WiNC2R. These blocks exploit the advantages of software flexibility and hardware high speeds. It’s an inter-protocol operable processing engine that caters to all modulation schemes and can vary them on the fly. These engines show MIMO capabilities also due to their data flow independent design. The software interface to the register maps instantiated inside the processing engines which is used to configure the system before start of the frame.
We successfully sent OFDM frames implemented on Virtual Flow Paradigm across and performed timing and utilization analysis. The modulator and demodulator parameters can be conveniently setup in the software. The flexible hardware design enables fast switching between WiFi and WiMAX frames. The thesis starts with the design of top level architecture and further dig deeper the design of the Modulator and Demodulator processing engines. We then conclude with the timing and area resource analysis and discuss an improvement in design.
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xii, 97 p. : ill.
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M.S.
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Includes bibliographical references (p. 93)
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by Tejaswy Hari
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Tejaswy
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1984-
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Tejaswy Hari
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Mandayam
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Narayan
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Narayan Mandayam
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Predrag Spasojevic
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Zhang
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Yangyong
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Yangyong Zhang
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Miljanic
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Zoran
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Zoran Miljanic
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Rutgers University
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Graduate School - New Brunswick
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2009
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2009-10
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xx
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Rutgers University Electronic Theses and Dissertations
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Graduate School - New Brunswick Electronic Theses and Dissertations
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doi:10.7282/T3H995C8
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ETD graduate
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The author owns the copyright to this work
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Open
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Hari
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Tejaswy
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Tejaswy Hari
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I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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