Now showing items 1-10 of 86
A wide dynamic range high-q high-frequency bandpass filter with an automatic quality factor tuning scheme
(Georgia Institute of Technology, 2009-01-09)
An 80 MHz bandpass filter with a tunable quality factor of 16∼44 using an improved transconductor circuit is presented. A noise optimized biquad structure for high-Q, high- frequency bandpass filter is proposed. The quality ...
Low-Overhead Opportunistic Routing for Wireless Ad Hoc and Sensor Networks in a Fading Environment
(Georgia Institute of Technology, 2007-11-15)
The development of miniaturized radio and sensing technologies have enabled the deployment of large quantities of wireless sensors capable of forming multi-hop networks. Emerging applications of this technology such as ...
Energy-Efficient Network Protocols for Wireless Sensor and Actor Networks
(Georgia Institute of Technology, 2006-08-15)
Wireless sensor networks (WSNs) have a wide variety of applications in civilian, medical and military applications. However, the nodes in such a network are limited to one type of action: sensing the environment. With ...
Reduced Complexity Sequential Monte Carlo Algorithms for Blind Receivers
(Georgia Institute of Technology, 2006-04-10)
Monte Carlo algorithms can be used to estimate the state of a system given relative observations. In this dissertation, these algorithms are applied to physical layer communications system models to estimate channel state ...
Orthogonal Frequency Division Multiplexing for Wireless Communications
(Georgia Institute of Technology, 2004-11-24)
OFDM is a promising technique for high-data-rate wireless communications because it can combat inter-symbol interference (ISI) caused by the dispersive fading of wireless channels. The proposed research focuses on techniques ...
Advanced Transport Protocols for Next Generation Heterogeneous Wireless Network Architectures
(Georgia Institute of Technology, 2004-04-12)
The revolutionary advances in the wireless communication technologies are inspiring the researchers to envision the next generation wireless networking architectures, i.e., Next Generation Wireless Internet (NGWI), ...
QoS concerned efficient video communications over wireless networks
(Georgia Institute of Technology, 2000-08)
Low Power Reconfigurable Microwave Circuts Using RF MEMS Switches for Wireless Systems
(Georgia Institute of Technology, 2005-05-31)
This dissertation presents the research on several different projects. The first project is a via-less CPW RF probe pad to microstrip transition; The second, the third, and the fourth one are reconfigurable microwave ...
Measurement, Modeling, and Performance, of Indoor MIMO Channels
(Georgia Institute of Technology, 2004-07-09)
The objective of this dissertation is to investigate the performance of the recently proposed MIMO technology in real indoor environments based on channel measurements centered at 5.8 GHz. First, a MIMO channel measurement ...
Advanced Synchronization Techniques for Continuous Phase Modulation
(Georgia Institute of Technology, 2006-04-03)
The objective of this research work is to develop reliable and power-efficient synchronization algorithms for continuous phase modulation (CPM). CPM is a bandwidth and power efficient signaling scheme suitable for wireless ...