Title page for ETD etd-02032007-110816

Type of Document Dissertation
Author Ibrahim, Jihad E
URN etd-02032007-110816
Title Algorithms and Architectures for UWB Receiver Design
Degree PhD
Department Electrical and Computer Engineering
Advisory Committee
Advisor Name Title
Buehrer, Richard Michael Committee Chair
da Silva, Claudio R. C. M. Committee Member
Hou, Yiwei Thomas Committee Member
Reed, Jeffrey Hugh Committee Member
Taaffe, Michael R. Committee Member
  • narrowband interference (NBI)
  • synchronization
  • multipath channel
  • Ultra wideband
Date of Defense 2007-01-25
Availability unrestricted
Impulse-based Ultra Wideband (UWB) radio technology has recently gained significant research attention for various indoor ranging, sensing and communications applications due to the large amount of allocated bandwidth and desirable properties of UWB signals (e.g., improved timing resolution or multipath fading mitigation). However, most of the applications have focused on indoor environments where the UWB channel is characterized by tens to hundreds of resolvable multipath components. Such environments introduce

tremendous complexity challenges to traditional radio designs in terms of signal detection and synchronization. Additionally, the extremely wide bandwidth and shared nature of the medium means that UWB receivers must contend with a variety of interference sources. Traditional interference mitigation techniques are not amenable to UWB due to the complexity of straight-forward translations to UWB bandwidths.

Thus, signal detection, synchronization and interference mitigation are open research issues that must be met in order to exploit the potential benefits of UWB systems. This thesis seeks to address each of these three challenges by first examining and accurately characterizing common approaches borrowed from spread spectrum and then proposing new methods which provide an improved trade-off between complexity and performance.

  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
  Ibrahim_March20.pdf 2.17 Mb 00:10:01 00:05:09 00:04:30 00:02:15 00:00:11

Browse All Available ETDs by ( Author | Department )

dla home
etds imagebase journals news ereserve special collections
virgnia tech home contact dla university libraries

If you have questions or technical problems, please Contact DLA.