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  • Radiation Detection Module and Radioactive Isotope Identification System

    Creator:
    Ma, Naixuan
    Abstract:
    Radiation is part of our life. Most people may know a radioactive source is very dangerous. But there are very few situations people are exposed to uncontrolled radionuclides above background. A radioactive source can emit gamma rays which are the highest energy type in electromagnetic radiation.[2] Gamma rays are like...
    Resource Type:
    Capstone Project

  • Multi-channel Stochastic Resource Allocation and Dynamic Access Scheduling

    Creator:
    Wang, Qiwei
    Abstract:
    Modern communication systems often have the ability to transmit signals on multiple communication mediums (e.g., RF, visible light) or interfaces (e.g., MAC layer protocols) at the same time. While each channel has different characteristics, a centralized controller with channel condition information will be able to schedule the resource allocated to...
    Resource Type:
    Dissertation
    Full Text:
    thank my Dr. Alan X. Wang and Dr. Arun Natarajan for being my committee members. We did some very

  • Design and Analysis of an Optical Wireless Receiver for a Hybrid WiFi Free-Space Optical (WiFO) Communication Network

    Creator:
    Borah, Anindita
    Abstract:
    The increasing demand for higher data-rates in spectrum-deficient indoor WiFi networks calls for the adaptation of hybrid systems, consisting of RF and optical wireless channels. The novel hybrid WiFi Free-Space Optical (WIFO) system was introduced to enhance the wireless capacity of indoor WiFi networks. In this thesis, an optical wireless...
    Resource Type:
    Masters Thesis
    Full Text:
    Nguyen and Dr. Alan Wang of the WiFO research group, for their invaluable advice and insight towards my

  • Radiation tolerance of magnetic tunnel junctions with MgO barriers

    Creator:
    Ren, Fanghui
    Abstract:
    In the next decade, technology trends--smaller dimension, lower voltage, higher operating frequency--introduce new technical considerations and challenges for radiation effects in integrated circuits. Semiconductor based circuits and traditional dynamic random-access memories will malfunction when exposed to extreme environments, such as space and nuclear reactor. The mechanisms for radiation effect are...
    Resource Type:
    Masters Thesis

  • Enhancing macrocell downlink performance through femtocell user cooperation

    Creator:
    Zaid, Adem Mabruk
    Abstract:
    This thesis studies cooperative techniques that rely on femtocell user diversity to improve the downlink communication quality of macrocell users. We analytically analyze and evaluate the achievable performance of these techniques in the downlink of Rayleigh fading channels. We provide an approximation of both the bit-error rate (BER) and the...
    Resource Type:
    Masters Thesis

  • Characteriscts of FSO Channel in WIFO

    Creator:
    Wang, songtao
    Abstract:
    With explosive growth of Internet access from smart phones and tablets, increasing bandwidth for WIFI system is badly needed. Depending on two years’ research, we produced a novel communication system called WIFO system, which integrates both RF (Radio Frequency) and FSO (Free Space Optical) techniques. WIFO system can significantly increase...
    Resource Type:
    Capstone Project
    Full Text:
    Ubiquitous Communications. Unknown Journal, 2011, p. 534-539, 2011. 41 [9] Qiwei Wang; Thinh Ngyen; Alan

  • 5th-Order Elliptic LPF Using Passive Charge Compensation Technique (PCC) Design

    Creator:
    Tsai, Cheng H.
    Abstract:
    The passive charge compensation (PCC) technique was introduced for switched capacitor (SC) circuit to increase the slew rate and enhance the linearity performance, as PCC techniques are used on the Delta-Sigma modulator (DSM) in ADC circuitry. The PCC technique of the project was applied to the design of a SC...
    Resource Type:
    Masters Thesis
    Full Text:
    . I would also like to thank Prof. Alan Wang, Prof. Anne Trehu, and Prof. Matthew Johnston for

  • Synthesis of Mg-MOF-74 thin film on optical support and its potential application in gas sensing

    Creator:
    Sun, Hao
    Abstract:
    Mg-MOF-74 is one type of metal-organic frameworks (MOFs) that is widely known for its excellent CO2 uptake capacity. More intriguingly, it can be used to detect low levels of toxic gas such as CO2. Currently, most research into Mg-MOF-74 focuses on using the powder type as a CO2 absorbent because...
    Resource Type:
    Masters Thesis
    Full Text:
    small nuclei on the substrate and supports more thin film growth. Wang et al. (47) synthesized the

  • Design Techniques of High-Speed Silicon Photonics Transceiver

    Creator:
    Li, Hao
    Abstract:
    The rapid scaling of network bandwidth and data center throughput has motivated the wide adoption of high speed transceivers. Silicon photonics (Si-Photonic) is one of the most promising techniques to realize tightly integrated optical transceivers for next-generation high speed I O standards. This dissertation focuses on the design techniques of...
    Resource Type:
    Dissertation
    Full Text:
    thank Prof. Un-Ku Moon, Prof. Alan Wang, Prof. Arun S. Natarajan for the help of my dissertation. I

  • Energy-Aware Gossip Techniques for Wireless Broadcasting

    Creator:
    Li, Tingzhi
    Abstract:
    The current state of research on gossip techniques for wireless broadcasting is very limited because past research efforts have mostly focused on using gossip techniques for multicast communication. On the other hand, those research efforts that have focused on using gossip techniques for wireless broadcast communications ignore energy efficiency and...
    Resource Type:
    Masters Thesis