Now showing items 21-40 of 161

    • Automatic tuning of continuous-time filters 

      Sumesaglam, Taner (Texas A&M University, 2004-11-15)
      Integrated high-Q continuous-time filters require adaptive tuning circuits that will correct the filter parameters such as center frequency and quality factor (Q). Three different automatic tuning techniques are introduced. ...
    • Bluetooth/WLAN receiver design methodology and IC implementations 

      Emira, Ahmed Ahmed Eladawy (Texas A&M University, 2004-09-30)
      Emerging technologies such as Bluetooth and 802.11b (Wi-Fi) have fuelled the growth of the short-range communication industry. Bluetooth, the leading WPAN (wireless personal area network) technology, was designed primarily ...
    • Buried fiber optic intrusion sensor 

      Maier, Eric William (Texas A&M University, 2004-09-30)
      A distributed fiber optic intrusion sensor capable of detecting intruders from the pressure of their weight on the earth's surface was investigated in the laboratory and in field tests. The presence of an intruder above ...
    • Capacity and scale-free dynamics of evolving wireless networks 

      Iyer, Bharat Vishwanathan (Texas A&M University, 2005-02-17)
      Many large-scale random graphs (e.g., the Internet) exhibit complex topology, nonhomogeneous spatial node distribution, and preferential attachment of new nodes. Current topology models for ad-hoc networks mostly consider ...
    • Capacity estimation and code design principles for continuous phase modulation (CPM) 

      Ganesan, Aravind (Texas A&M University, 2004-09-30)
      Continuous Phase Modulation is a popular digital modulation scheme for systems which have tight spectral efficiency and Peak-to-Average ratio (PAR) constraints. In this thesis we propose a method of estimating the capacity ...
    • A class of non-binary LDPC codes 

      Gilra, Deepak (Texas A&M University, 2004-09-30)
      In this thesis we study Low Density Parity Check (LDPC) and LDPC like codes over non-binary fields. We extend the concepts used for non-binary LDPC codes to generalize Product Accumulate (PA) codes to non-binary fields. ...
    • Clock tree synthesis for prescribed skew specifications 

      Chaturvedi, Rishi (Texas A&M University, 2005-08-29)
      In ultra-deep submicron VLSI designs, clock network layout plays an increasingly important role in determining circuit performance including timing, power consumption, cost, power supply noise and tolerance to process ...
    • A CMOS 500MHz continuous-time fourth order 0.05degree equiripple linear phase filter with automatic tuning 

      Pandey, Pankaj (Texas A&M University, 2004-09-30)
      The growing demand of portable electronic equipment and system-on-a-chip has been pushing the industry to design circuits with very low power supply voltage and low power consumption. The Hard Disk drive industry is looking ...
    • CMOS front-end amplifier for broadband DTV tuner 

      Zhang, Guang (Texas A&M University, 2005-08-29)
      In this work, the design of a CMOS broadband low noise amplifier with inherent high performance single-to-differential conversion is presented. These characteristics are driven by the double quadrature single conversion ...
    • CMOS temperature sensor utilizing interface-trap charge pumping 

      Berber, Feyza (Texas A&M University, 2006-10-30)
      The objective of this thesis is to introduce an alternative temperature sensor in CMOS technology with small area, low power consumption, and high resolution that can be easily interfaced. A novel temperature sensor utilizing ...
    • Code design based on metric-spectrum and applications 

      Papadimitriou, Panayiotis D. (Texas A&M University, 2005-02-17)
      We introduced nested search methods to design (n, k) block codes for arbitrary channels by optimizing an appropriate metric spectrum in each iteration. For a given k, the methods start with a good high rate code, say k/(k ...
    • Code optimization and analysis for multiple-input and multiple-output communication systems 

      Yue, Guosen (Texas A&M University, 2005-11-01)
      Design and analysis of random-like codes for various multiple-input and multiple-output communication systems are addressed in this work. Random-like codes have drawn significant interest because they offer ...
    • Coding with side information 

      Cheng, Szeming (Texas A&M University, 2005-11-01)
      Source coding and channel coding are two important problems in communications. Although side information exists in everyday scenario, the effect of side information is not taken into account in the conventional setups. ...
    • Collusion-resistant fingerprinting for multimedia in a broadcast channel environment 

      Luh, William (Texas A&M University, 2005-02-17)
      Digital fingerprinting is a method by which a copyright owner can uniquely embed a buyer-dependent, inconspicuous serial number (representing the fingerprint) into every copy of digital data that is legally sold. The ...
    • Combined source-channel coding for a power and bandwidth constrained noisy channel 

      Raja, Nouman Saeed (Texas A&M University, 2005-02-17)
      This thesis proposes a framework for combined source-channel coding under power and bandwidth constrained noisy channel. The framework is then applied to progressive image coding transmission using constant envelope M-ary ...
    • Concatenated codes for the multiple-input multiple-output quasi-static fading channel 

      Gulati, Vivek (Texas A&M University, 2005-02-17)
      The use of multiple antennas at the transmitter and/or the receiver promises greatly increased capacity. This can be useful to meet the ever growing demand of wireless connectivity, provided we can find techniques to ...
    • A congestion control scheme for wireless sensor networks 

      Xiong, Yunli (Texas A&M University, 2005-08-29)
      In wireless sensor networks (WSN), nodes have very limited power due to hardware constraints. Packet losses and retransmissions resulting from congestion cost precious energy and shorten the lifetime of sensor nodes. This ...
    • Contactless magnetic brake for automotive applications 

      Gay, Sebastien Emmanuel (2009-05-15)
      Road and rail vehicles and aircraft rely mainly or solely on friction brakes. These brakes pose several problems, especially in hybrid vehicles: significant wear, fading, complex and slow actuation, lack of fail-safe ...
    • Countering Aging Effects through Field Gate Sizing 

      Henrichson, Trenton D. (2010-01-14)
      Transistor aging through negative bias temperature instability (NBTI) has become a major lifetime constraint in VLSI circuits. We propose a technique that uses antifuses to widen PMOS transistors later in a circuit?s life ...
    • Data collecting and processing for substation integration enhancement 

      Jakovljevic, Sasa (Texas A&M University, 2004-09-30)
      The issue of substation integration is recognized as a very important one ever since the process of technological development brought a multitude of new computer-based devices and functions into substation operation. During ...