2008 Annual Research Review
Monday, January 28, 2008

• Event
   
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• Agenda
    
• Detailed Program
   
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• Presentations from the Event
   
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Interactive Student Posters       Detailed Program
    
     

Title	A 300M/S Subranging A/D Converter in 90nm Digital CMOS
Abstract	A 300MS/s 10b ADC without a dedicated THA, and using distributed sampling and time interleaving is described... More...
Student	Rodney Chandler
Advisor	Professor Asad A. Abidi
Title	Suppressed Carrier Single Sideband Optical Transmitter for High Dynamic Range Optical Communications
Abstract	We report the demonstration of a suppressed carrier single sideband analog optical link with spurious free dynamic range achieving >120dB/Hz^2/3... More...
Student	ZHU, Gary
Advisor	Professor H.R. Fetterman
Title	Floating-Point to Field-Tests: A Unified Development Environment for Algorithm Research
Abstract	We will demonstrate a hybrid software-hardware research testbed for algorithm research that utilizes a unified development environment which cuts across all of the above design stages... More...
Student	DULMAGE, Jared
Advisor	Adjunct Professor Michael P. Fitz
Title	Monolithically Integrated III-Sb-based Optoelectronic Devices on Si Substrates
Abstract	We report the formation and growth characteristics of an interfacial misfit (IMF) array between AlSb and Si and their application to III-Sb based optoelectronic devices including edge-emitting laser diodes and transistors monolithically grown on a Si (001) substrate... More...
Student	TATEBAYASHI, Jun
Advisor	Professor Diana L. Huffaker
Title	Controlled Growth and Device Implementation of Quantum Dots on Patterned GaAs Substrates by MOCVD
Abstract	The selective quantum dot (QD) nucleation on nano-faceted GaAs pyramidal facets is studied.... More...
Student	WONG, Ping-Show
Advisor	Professor Diana L. Huffaker
Title	Dual-Mode Metamaterial with Backward and Forward Wave Selectivity
Abstract	A mode selective metamaterial which supports either forward or backward waves within the same frequency bandwidth is presented... More...
Student	LAI, Anthony
Advisor	Professor Tatsuo Itoh
Title	Optimization Techniques for Embedded Digital Receivers
Abstract	Using an example of a WLAN receiver, we illustrate system optimization techniques that allow complex receivers to be implemented in real-time on DSPs... More...
Student	HUANG, Yuan Rick
Advisor	Professor Rajeev Jain
Title	Wake Assisted Self-Guiding of Ultra-Short Laser Pulses in Plasma
Abstract	Using a 50 fs multi-terawatt Ti:Sapphire laser in an underdense helium plasma, we demonstrate experimentally self-guiding up to 16 Rayleigh lengths in the plasma wake with powers up to 8 Terawatts... More...
Student	RALPH, Joseph
Advisor	Professor Chan Joshi
Title	Microfabricated Probes for Laboratory Plasmas
Abstract	We present the first of a series of microfabricated sensors for directly measuring fundamental plasma parameters with unprecedented resolution in typical laboratory plasmas... More...
Student	CHIANG, Franklin C.
Advisor	Professor Jack W. Judy
Title	Nanostructured Electrodes to Investigate Cellular Heterogeneity of Cardiac Myocytes
Abstract	We are developing a system of nanostructured electrodes for recording myocyte signals to explore previously inaccessible questions... More...
Student	FUNG, Andrew
Advisor	Professor Jack W. Judy
Title	Towards an In-Plane CMOS Compatible Magnetic MEMS Switch
Abstract	Magnetic MEMS devices commonly feature out of plane actuation, often to take advantage of the well controlled thickness characteristics of thin film deposition in the creation of magnetic gaps. For our devices, we have developed a thick photoresist (KMPR and SU8) based process... More...
Student	GLICKMAN, Michael
Advisor	Professor Jack W. Judy
Title	Magnetic Microactuators for MEMS-Enabled Ventricular Catheters for Hydrocephalus
Abstract	Building upon our investigation of ventricular-catheter obstruction and our experience with magnetic MEMS, we seek to realize a self-clearing ventricular catheter through the integration of magnetic microactuators that are capable of mechanically maintaining a clear ventricular catheter without requiring an implanted power supply into the shunt... More...
Student	LEE, Hyowan
Advisor	Professor Jack W. Judy
Title	3-D Microfabrication with Laser Patterned Photostructurable Glass
Abstract	For the first time,we demonstrate ten stacked laser-altered regions in a 1-mm-thick wafer, separated by regions of unaffected glass,exposed and etched in a single patterning step... More...
Student	STILLMAN, Janet A.
Advisor	Professor Jack W. Judy
Title	Intracranial Magnetic Resonance Imaging Depth Electrode
Abstract	We aim to transform the region normally obscured in MRI into the region of greatest spatial resolution by minimizing the electrode artifact and integrating an implantable MRI antenna... More...
Student	STRICKMAN, Deborah S.
Advisor	Professor Jack W. Judy
Title	Context-aware, Energy-aware Sensing of Physiological Signals
Abstract	Recent advancement in microsensor technology permits miniaturization of conventional physiological sensors... More...
Student	AU, Lawrence
Advisor	Professor William J. Kaiser
Title	Informative Sensing Using Mobile Robots for Environmental Applications
Abstract	We present an efficient path planning algorithm that coordinates multiple robots, each having a resource constraint, to maximize the “informativeness" of their visited locations... More...
Student	SINGH, Amarjeet
Advisor	Professor William J. Kaiser
Title	NIMS: 3-Dimensional, Aquatic & Autonomous-IDEA
Abstract	During the last decade as a result of increasing concern for water resource availability, the complexity of aquatic sensing applications has increased as a result of demands for: 1) broad spatial coverage and high spatial resolution monitoring, 2) capability for resolving fine scale spatiotemporal dynamics and 3) the need for rapid system deployment with automatic operations... More...
Student	STEALEY, Michael J.
Advisor	Professor William J. Kaiser
Title	The SmartCane System: An Assistive Device for Geriatrics
Abstract	Falls are currently a leading cause of death from injury in the elderly. The usage of conventional assistive cane devices is critical in reducing the risk of falls and is relied upon by over 4 million patients in the U.S.... More...
Student	WU, Winston
Advisor	Professor William J. Kaiser
Title	A Hardware Architecture for Neural Spike Sorting
Abstract	Neural signal processing has many exciting applications today, including neuroscience research and neuroprosthetics. More...
Student	GIBSON, Sarah
Advisor	Professor Dejan Markovic
Title	High Level Synthesis Automated Data Flow Graph Scheduling & Retiming
Abstract	Architectural optimization has traditionally been a heuristic process involving multiple iterations before the final design converges to the desired specifications. Our aim is to automate the process of architecture selection for high-performance and energy-sensitive systems... More...
Student	NANDA, Rashmi
Advisor	Professor Dejan Markovic
Title	A Design Model for Random Process Variablility and Applications
Abstract	A new approach to analyze process variation through measured current variation is introduced... More...
Student	WANG, Victoria
Advisor	Professor Dejan Markovic
Title	A Flexible VLSI Architecture for Extracting Diversity and Spatial Multiplexing Gains in MIMO Channels
Abstract	This work presents a unified sphere decoder architecture that deploys diversity-multiplexing tradeoff in MIMO channels by taking advantage of the flexibility in the number of antennas and modulation schemes... More...
Student	YANG, Chia-Hsiang
Advisor	Professor Dejan Markovic
Title	Evolution of a High Density Laser Produced Blow-Off Plasma Expanding Through a Low Density, Highly Magnetized Background Plasma
Abstract	We have started a new class of experiments with a high power laser at the BAPSF to study the interaction of a dense laser-produced plasma expanding through a highly magnetized background plasma... More...
Student	EVERSON, Erik
Advisor	Professor Christoph Niemann
Title	High K-alpha X-ray Conversion Efficiency from Extended Source Gas Jet Targets Irradiated by Ultra Short Laser Pulses
Abstract	The absolute laser conversion efficiency to K-alpha-like inner shell x-rays (integrated from K-alpha to K-beta) is observed to be an order of magnitude higher in argon gas jets than in solid targets due to enhanced emission from higher ionization stages following ultra short pulse laser irradiation... More...
Student	KUGLAND, Nathan A.
Advisor	Professor Christoph Niemann
Title	Differential Near-field Microscopy for Nano-Imaging
Abstract	In this poster, we introduce a new aperture-type near-field scanning optical microscopy (NSOM) imaging concept which relies on specially designed large area (e.g., > 200 nm x 200 nm) aperture geometries that have sharp corners... More...
Student	KHADEM-HOSSEINIEH, Bahar
Advisor	Professor Aydogan Ozcan
Title	Ultra-wide Field Lens-free Monitoring of Cells On-chip
Abstract	We demonstrate a new cost-effective cell monitoring and counting platform... More...
Student	SU, Ting-Wei
Advisor	Professor Aydogan Ozcan
Title	An Almost Digital Power Amplifier for 802.11g WLAN Applications
Abstract	A novel scheme for combining RF power is presented. The scheme is efficient, inherently wideband and robust to device and system level non-linearity... More...
Student	SINGHAL, Nitesh
Advisor	Professor Sudhakar Pamarti
Title	Cognitive Radio Networks as Sensor Networks
Abstract	Cognitive radios are wireless communication networks that learn and adapt to variations in interference environment by changing their transmission and reception parameters, and as a result achieve much higher spectral efficiency and reliability... More...
Student	BANDARI, Dorna
Advisor	Professor Gregory J. Pottie
Title	Trade off Between Uncertainty, Number of Sensors, and Communication in Source Localization
Abstract	...This poster demonstrates a study of the trade off between uncertainty in localization, number of sensors used, and the number of bits transmitted by each sensor... More...
Student	BANDARI, Roja
Advisor	Professor Gregory J. Pottie
Title	Multiscale Actuated Sensing Based on Field Models
Abstract	Environment monitoring helps us to learn about the natural environment we live in. The complexity of the many natural phenomena makes it a very difficult task to learn these phenomena... More...
Student	KONG, Xiangming Cathy
Advisor	Professor Gregory J. Pottie
Title	The Marginal Utility of Additional Sensors
Abstract	We present arguments that a small number of sensors within the network provide most of the utility... More...
Student	TONG, Yu-Ching
Advisor	Professor Gregory J. Pottie
Title	Sensor Network Data Fault Types
Abstract	We composed a tutorial that presents a detailed study of  sensor faults that occur in deployed sensor networks and a systematic approach to model these faults... More...
Student	NI, Kevin
Advisor	Professors Gregory J. Pottie and Mani B. Srivastava
Title	Optimal Cross Layer Networking for Mobile Ad Hoc Wireless Networks using CSMA/CA MAC
Abstract	We investigate in the context of multi-hop ad hoc wireless networks the impact of multi-rate operation combined with the use of adaptive packet forwarding and routing operations... More...
Student	HSU, Julan
Advisor	Professor Izhak Rubin
Title	Multicasting in Energy Aware Mobile Backbone-based Wireless Ad Hoc Networks
Abstract	We present two hierarchical multicast algorithms that employ a dynamically synthesized Energy-Aware Mobile Backbone Network (E-MBN) to achieve efficient message distribution among members of the multicast groups... More...
Student	TAN, Choo Chin
Advisor	Professor Izhak Rubin
Title	Optimal Placement of UAVs for Aiding Mobile Ad Hoc Wireless Networks
Abstract	To enhance the performance of mobile ad hoc wireless networks, we present in this paper a method and algorithm that are used to place relay nodes, such as UAVs, in locations that efficiently serve to support the robustness and capacity requirements of the underlying mobile ad hoc wireless network system... More...
Student	ZHANG, Runhe
Advisor	Professor Izhak Rubin
Title	Mathematical Models of Cerebral Hemodynamics for Detection of Vasospasm in Major Cerebral Arteries
Abstract	Cerebral vasospasm is a typical complication occurring after Subarachnoid Hemorrhage, which may lead to delayed cerebral ischemia and death... More...
Student	CATTAVELLI, Federico
Advisor	Professor Ali H. Sayed
Title	Optimal Linear Cooperation for Spectrum Sensing in Cognitive Radio Networks
Abstract	Cognitive radio technology has been recently proposed to improve spectrum efficiency by having the cognitive radios act as secondary users to opportunistically access under utilized frequency bands... More...
Student	QUAN, Zhi
Advisor	Professor Ali H. Sayed
Title	Diagnostic Quality Driven Energy-efficient and Bandwidth-scalable Physiological Data Collection for Wireless Telehealth
Abstract	Smartphones are fast emerging as the platform for wireless healthcare via affordable medical sensors. However, the requirement of high rate physiological data collection has precluded successful large-scale deployments... More...
Student	JEA, David
Advisor	Professor Mani B. Srivastava
Title	SpotLight: Focusing on Energy Consumption of Individuals
Abstract	The impending energy crisis forces us to research innovative ways of optimizing energy consumption. We believe that a better understanding of energy consumption can help improve energy efficiency. We present SpotLight, a system that profiles individual's energy consumption pattern in real time... More...
Student	KIM, Younghun
Advisor	Professor Mani B. Srivastava
Title	XCXO: Crystal Compensated Crystal Oscillators for Low-cost, Low-drift Clocks
Abstract	We propose a novel clock system (hardware and software) that is composed of two crystal oscillators running in parallel at each node... More...
Student	SCHMID, Thomas
Advisor	Professor Mani B. Srivastava
Title	QoI-Aware Design and Management of Sensor Networks
Abstract	With their increasing capabilities, research efforts in sensor networks have been spreading on a variety of aspects. We have presented a system-oriented, layered approach for evaluating their application-related performance... More...
Student	ZAHEDI, Sadaf
Advisor	Professor Mani B. Srivastava
Title	PICK: A Framework for Choosing Data Collectors in Participatory Sensing
Abstract	In traditional sensor systems, one of the fundamental problems concerns the placement of sensors. The analogous problem in participatory sensing is choosing users to perform a particular data collection task. This poster will detail a framework that is designed to help with this process... More...
Student	REDDY, Sasank
Advisor	Professors Mani B. Srivastava and Deborah Estrin
Title	Event-triggered and Self-triggered Control
Abstract	We explore event-triggered and self-triggered implementations that make use of the plant measurements to trigger the next execution of the control tasks... More...
Student	MARTINEZ, Adolfo Anta
Advisor	Professor Paulo Tabuada
Title	Learning for Dynamic Bidding in Cognitive Radio Resources
Abstract	We model the various wireless users in a cognitive radio network as a collection of selfish, autonomous agents that strategically interact in order to acquire the dynamically available spectrum opportunities... More...
Student	FU, Fangwen
Advisor	Professor Mihaela van der Schaar
Title	A New Perspective on Multi-user Power Control Games in Interference Channels
Abstract	The problem of how to allocate power among competing users sharing a frequency-selective interference channel is considered. We model the interaction between these selfish users as a non-cooperative game... More...
Student	SU, Yi
Advisor	Professor Mihaela van der Schaar
Title	Lower-Complexity Layered Belief-Propagation Decoding of LDPC Codes
Abstract	The design of LDPC decoders with low complexity, high throughput, and good performance is a critical task. ... More...
Student	CHANG, Yuan-Mao Chang
Advisor	Professor Richard D. Wesel
Title	Improving LDPC Decoders via Informed Dynamic Scheduling
Abstract	Low-Density Parity-Check (LDPC) codes are usually decoded by running an iterative belief-propagation (BP), or message-passing, algorithm over the factor graph of the code... More...
Student	VILA CASADO, Andres I.
Advisor	Professor Richard D. Wesel
Title	Group-Addition Approach for Broadcast Gaussian Channels with MPSK Modulation
Abstract	The broadcast Gaussian channel is a well-known channel model for broadcast communications like mobile communication... More...
Student	XIE, Bike
Advisor	Professor Richard D. Wesel
Title	Terahertz Quantum Cascade Lasers
Abstract	The terahertz spectral regime defined as the frequencies between 0.3–10 THz (wavelengths between 30–1000 ?m) have found an increasing interest for sensing and imaging applications in such diverse fields as astronomy and space science, medical imaging, security screening, explosive detection, and non-invasive inspection... More...
Student	TAVALLEE, Amir Ali
Advisor	Professor Benjamin Williams
Title	A Flexible Decoder for Multi-mode WiMAX QC-LDPC Codes
Abstract	The architecture-aware quasi-cyclic (QC) low-density parity-check (LDPC) codes in the IEEE 802.16e (WiMAX) standard support multiple code rates and code lengths... More...
Student	KUO, Tzu-Chieh
Advisor	Professor Alan N. Willson
Title	A 250MHz Direct Digital Frequency Synthesizer/Mixer with Two-Stage Angle Rotation Architecture in 0.18µm CMOS
Abstract	A 250MHz low power consumption quadrature direct digital frequency synthesizer and complex mixer (QDDFSM) chip is presented... More...
Student	LAI, Heung Fan Thriven
Advisor	Professor Alan N. Willson
Title	Simultaneous Bearing and Number of Sources Estimation Using Finite Set Statistics
Abstract	Acoustic sources are usually time-variant although the source may not be moving... More...
Student	ALI, Andreas M.
Advisor	Professor Kung Yao
Title	Stochastic Maximum-Likelihood DOA Estimation in the Presence of Unknown Nonuniform Noise
Abstract	This paper investigates the direction-of-arrival (DOA) estimation of multiple narrowband sources in the presence of nonuniform white noise with an arbitrary diagonal covariance matrix... More...
Student	CHEN, Chiao En
Advisor	Professor Kung Yao
Title	Spectrum Sensing in Cognitive Radio by Incorporating Fading Channel Statistics
Abstract	A cognitive radio critically relies on spectrum sensing to utilize the spectrum vacancies. We investigate the spectrum sensing under various fading channels, and derive testing statistics of the likelihood ratio test with known fading statistics (LRFS) for the single detector and the decision fusion scenarios... More..
Student	CHUNG, Wei-Ho
Advisor	Professor Kung Yao