Index Catalog // ScholarsArchive@OSU

Design and Analysis of Free-space Optical Communications Systems for Next Generation Short-range Wireless Networks

Creator:: Liverman, Spencer
Abstract:: This dissertation focuses on indoor free-space optical communications systems for use in short range wireless networks. We propose that current radio frequency wireless links be augmented or replaced with optical frequency links due to overcrowding in the radio frequency spectrum. Optical frequencies contain hundreds of terahertz of unregulated bandwidth and...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Spencer Liverman for the degree of Doctor of Philosophy in Electrical

WiFO: A hybrid communication network based on integrated free-space optical and WiFi femtocells

Creator:: Liverman, Spencer, Wang, Qiwei, Chu, Yu-Jung, Borah, Anindita, Wang, Songtao, Natarajan, Arun, Wang, Alan X., and Thinh Nguyen
Abstract:: Developments in smart home technology and the Internet of Things have significantly increased the demand for high-speed indoor wireless links. Although the majority of the research conducted in this area is still focused on the efficient usage of radio frequency (RF) spectrum, free-space optical (FSO) networks have also been explored...
Resource Type:: Article
Full Text:: : A hybrid communication network based on integrated free-space optical and WiFi femtocells Spencer

A 400Mb/s 850nm FSO Link based on CMOS Integrated Receiver for Hybrid WiFi and Optical Femtocells

Creator:: Chen, Siyuan
Abstract:: The increasing demand for higher data-rates is challenging to satisfy with spectrum-deﬁcient indoor WiFi networks. A novel hybrid WiFi Free-Space Optical (WIFO) system has been proposed to enhance the wireless capacity of indoor WiFi networks. In this thesis, an integrated optical wireless receiver is designed and integrated in 65-nm CMOS...
Resource Type:: Masters Thesis
Full Text:: . Secondly, I would like to thanks Spencer Liverman, who design the transmitter of the WiFO optical front

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:: Spencer Liverman, who designed the WiFO transmitter and played a critical role in designing the optical

Coverage algorithms for WiFO : a hybrid WiFi-FSO femtocell communication system

Creator:: Zhang, Yang
Abstract:: Coverage algorithms for deployment of WiFO - a hybrid femtocell architecture based on WiFi and Free Space Optical (FSO) technologies are studied to significantly increase wireless throughput of existing WiFi networks. In contrast with existing WiFi networks, WiFO incorporates small cell size, line of sight transmissions, and the Gaussian attenuation...
Resource Type:: Masters Thesis
Full Text:: grateful to Spencer Liverman, who is always glad to help me with hardware problems, Qiwei Wang and

Mobility Protocol, Channel Estimation and Modulation Techniques for Hybrid WiFi-FSO (WiFO) WLAN of Femtocells

Creator:: Chu, Yu-Jung
Abstract:: As the price of broadband access service becomes more affordable, the number of homes with WiFi and public WiFi hotspots in the US are projected to increase significantly in the next few years. However, limited capacity of existing WiFi networks fail to provide adequate bandwidth for densely populated areas. Therefore,...
Resource Type:: Masters Thesis
Full Text:: thesis. They are Qiwei Wang, Spencer Liverman, Songtao Wang and Yang Zhang. Finally, special thanks to

Plasmonic Nano-Antenna and Modulator for On-Chip Optical Interconnects

Creator:: Gao, Qian
Abstract:: With the rapid growth of worldwide internet traffic in data centers and clouds, silicon photonics has been utilized to provide enormous data bandwidth and outstanding energy efficiency over electronics. Computing servers and storage servers that are connected by communication links are relying more on optical rather than electrical means mainly...
Resource Type:: Dissertation
Full Text:: , especially Dr. Fanghui Ren, Dr. Xingyuan Chong, Erwen Li, Kenny Squire, and Dr. Spencer Travis Liverman

Surface-Enhanced Infrared Absorption Gas Sensing Incorporating Advanced Plasmonic Nanostructures and Nano-Composite Materials

Creator:: Chong, Xinyuan
Abstract:: This dissertation focuses on extending the application scope of surface enhanced infrared absorption spectroscopy to gas sensing. The method we propose is incorporating plasmonic nanostructures with nano-composite material, metalorganic framework, which can selectively preconcentrate certain gas molecules into the nanopores. The preconcentrating property is first demonstrated by applying metal-organic framework...
Resource Type:: Dissertation
Full Text:: Gao, Xianming Kong, Shiwen Li, Kenny Squire, Spencer Liverman, Fanghui Ren, Jing Yang, and Yuting Xi

Surface-Normal Modulation of Fano Resonances in Metallic Photonic Crystals for Free-Space Optical Interconnects

Creator:: Ren, Fanghui
Abstract:: This dissertation focuses on the development of ultra-compact optical devices for free-space modulation. We propose a surface-normal modulator using metallic photonic crystals for free-space optical interconnects. The active control of light intensity is achieved by engineering the Fano resonances in metallic photonic crystals. Both thermo-optic modulation and electro-optic modulation of...
Resource Type:: Dissertation
Full Text:: Li, Jing Yang, Xianming Kong, Spencer Liverman and Xiangyu Wang. I am also very fortunate to work

The effect of dietary compounds on human cathelicidin antimicrobial peptide gene expression mediated through farnesoid X receptor and its potential role in gastrointestinal health

Creator:: Campbell, Yan
Abstract:: The human cathelicidin antimicrobial peptide (CAMP) is a broad spectrum microbicidal agent and modulator of both the innate and adaptive immune system. It is induced by 1,25-dihydroxyvitamin D (1,25(OH)₂D₃) through activation of the vitamin D receptor (VDR) and primary bile salts through activation of the xenobiotic nuclear receptor farnesoid X...
Resource Type:: Dissertation

ScholarsArchive@OSU

Design and Analysis of Free-space Optical Communications Systems for Next Generation Short-range Wireless Networks

WiFO: A hybrid communication network based on integrated free-space optical and WiFi femtocells

A 400Mb/s 850nm FSO Link based on CMOS Integrated Receiver for Hybrid WiFi and Optical Femtocells

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

Coverage algorithms for WiFO : a hybrid WiFi-FSO femtocell communication system

Mobility Protocol, Channel Estimation and Modulation Techniques for Hybrid WiFi-FSO (WiFO) WLAN of Femtocells

Plasmonic Nano-Antenna and Modulator for On-Chip Optical Interconnects

Surface-Enhanced Infrared Absorption Gas Sensing Incorporating Advanced Plasmonic Nanostructures and Nano-Composite Materials

Surface-Normal Modulation of Fano Resonances in Metallic Photonic Crystals for Free-Space Optical Interconnects

The effect of dietary compounds on human cathelicidin antimicrobial peptide gene expression mediated through farnesoid X receptor and its potential role in gastrointestinal health

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