Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"random code"”.
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Performance analysis of star architecture packet-switched VSAT networks using random code division multiple access
… analysis of an asynchronous Direct-Sequence Code Division Multiple Access (DS-CDMA) communication system is carried out for the inbound line (VSAT to hub). Each channel was characterized by its bit error probability, and transmits fixed-length packets generated according to a Poisson process …
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Information theoretic aspects of the control and the mode estimation of stochastic systems
… approach, the switching system is viewed as an encoder of the mode, which is interpreted as the message, while a probing signal establishes a random code. Using a distortion function, we define an uncertainty ball where the estimates are guaranteed to lie with probability arbitrarily close to 1. …
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Multiple access networks over finite fields : optimality of separation, randomness and linearity
… We derive the capacity region and the maximum code rate for the noisy as well as noise-free channel where, code rate is defined as the ratio of the information symbols recovered at the receiver to the symbols sent by the transmitters in a slot duration. Code rate measures the overhead in …
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Analogic for code estimation and detection
… called Noise-Locked Loop(NLL) which is a pseudo-random code estimation system. The previous work shows NLL can perform direct-sequence spread-spectrum acquisition and tracking functionality and promises orders-of-magnitude win over digital implementations [29]. Most of the research [30] [2] [3] …
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Non-orthogonal random waveform based multiuser communications
… providing a unified treatment of non-orthogonal random waveform based multiuser communications, commencing from the underlying theory and providing the way to sophisticated applications. In Chapter 2, we introduce the general framework of non-orthogonal random waveform based multiuser …
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Complexity and second moment of the mathematical theory of communication
The performance of an error correcting code is evaluated by its block error probability, code rate, and encoding and decoding complexity. The performance of a series of codes is evaluated by, as the block lengths approach infinity, whether their block error probabilities decay to zero, whether …
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Optimising Signal Isolation and Phase Measurement in Digitally Enhanced Interferometry
Digitally enhanced interferometry (DI) combines code division multiplexing with optical interferometry through the use of pseudo-random noise codes. It allows time-of-flight multiplexed precision sensing with interferometric sensitivity by using these codes to identify the signal of interest, while …
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Optimising Signal Isolation and Phase Measurement in Digitally Enhanced Interferometry
Digitally enhanced interferometry (DI) combines code division multiplexing with optical interferometry through the use of pseudo-random noise codes. It allows time-of-flight multiplexed precision sensing with interferometric sensitivity by using these codes to identify the signal of interest, while …
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A Randomised Clinical Trial of the Effectiveness of Orthodontic Treatment between the 0.018-inch and the 0.022-inch Slot Conventional Ligation Bracket Systems
… 2-arm parallel active group randomised clinical trial (RCT) with a 1:1 allocation ratio.<b><br/></b><b><br/></b><b>Setting</b>: Secondary care hospital environment in the National Health Service (NHS) Tayside in Scotland, United Kingdom.<b><br/></b><b><br/></b><b>Subjects and …
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Development of Low-power Wireless Sensor Nodes based on Assembled Nanowire Devices
… phase/frequency detector (PFD), a CMOS pseudo-random code generator and an on-chip passive loop filter, which were designed for the multi-band PLL frequency synthesizer. The CMOS PFD provided phase tracking over a range of -2π to +2π radians. The on-chip passive loop filter was designed for a …