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Noncoherent detection of pulse-position modulation with correlated Gaussian interference in a slowly fading two-path channel

Posted on:2007-07-03Degree:Ph.DType:Dissertation
University:University of California, San DiegoCandidate:Zeidler, Brandon JFull Text:PDF
GTID:1448390005963797Subject:Engineering
Abstract/Summary:
In this work, a general analysis is developed for the noncoherent detection of non-overlapping PPM with correlated Gaussian interference, transmitted through a slowly fading two-path channel. Subject to a few general assumptions about the channel and the correlation time of the interference, it is shown that the pairwise error probabilities separate into three cases of interest. In Part I of this dissertation, closed-form solutions are derived for the first two cases, and for the third case under certain limiting conditions. In Part II, of the dissertation, general solutions for this third case are computed numerically by inverting a characteristic function, and are shown to agree with the solutions for the limiting cases in Part I.; As a specific example, in Part III we investigate the performance of a novel modulation scheme employing Ultrashort Light Pulses (ULPs), modulated with Pulse Position Modulation (PPM) for M-ary data transmission in conjunction with asynchronous time-spread CDMA, transmitted through a Single Mode Fiber (SMF) channel with PMD. Considering the first-order effect of the PMD, the throughput and capacity degradation are derived in terms of physical system parameters.
Keywords/Search Tags:Interference, Modulation, Channel
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