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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/24255

Title: Abnormal Group Delay and Detection Latency in the Presence of Noise for Communication Systems
Authors: Kayili, Levent
Advisor: Mojahedi, Mohammad
Department: Electrical and Computer Engineering
Keywords: electrical engineering
Einstein causality
communication systems
abnormal group delay
abnormal group velocity
superluminal group delay
superluminal group velocity
time-varying error probability
signal latency
detection system
detection latency
pulse advancement
spatially extended systems
negative group delay
negative group velocity
spatially negligible systems
microwave circuits
microelectronic interconnects
relativistic causality
Issue Date: 6-Apr-2010
Abstract: Although it has been well established that abnormal group delay is a real physical phenomenon and is not in violation of Einstein causality, there has been little investigation into whether or not such abnormal behaviour can be used to reduce signal latency in practical communication systems in the presence of noise. In this thesis, we use time-varying probability of error to determine if abnormal group delay “channels” can offer reduced signal latency. Since the detection system plays a critical role in the analysis, three important detection systems are considered: the correlation, matched filter and envelope detection systems. Our analysis shows that for both spatially negligible microelectronic systems and spatially extended microwave systems, negative group delay “channels” offer reduced signal latency as compared to conventional “channels”. The results presented in the thesis can be used to design a new generation of electronic and microwave interconnects with reduced or eliminated signal latency.
URI: http://hdl.handle.net/1807/24255
Appears in Collections:Master
The Edward S. Rogers Sr. Department of Electrical & Computer Engineering - Master theses

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