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 8 of 8 for “"Differential encoding"”.
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Performance evaluation of chirp spread spectrum system and Land Mobile Satellite System by computer simulation
… digital modulation schemes as well as channel encoding, block interleaving/deinterleaving, and differential encoding techniques were used for a thorough performance evaluation of a Land Mobile Satellite System under fading conditions. For this purpose, an LMSS fading channel simulator capable …
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An Optimization of Thermodynamic Efficiency vs. Capacity for Communications Systems
… and improvement of efficiency for the encoding of signals. The proliferation of Mobile Communications platforms is challenging capacity of networks largely because of the ever increasing data rate at each node. This places significant power management demands on personal computing …
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Failure to update metacognitive control in response to expected retention intervals
To effectively allocate encoding resources, learners should take into account how long they need to retain information before it will be needed. Four experiments investigated whether expected retention intervals affect subjects’ encoding strategies. Subjects studied paired associates consisting of …
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Fractionally Spaced Blind Equalizer Performance Improvement
… can make CMA converge to a global minimum, if a differential encoding scheme is used. The performance of CMA with different error equations is also investigated for different channel conditions. For a time varying channel, the performance of an equalizer not only depends on the convergence …
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Performance evaluation for communication systems with receive diversity and interference
… detection schemes based on the multiple symbol differential detection (MSDD) technique are also developed for systems with multiple interferers and multiple receiving branches. The first MSDD scheme is developed for systems where the channel gain of the desired signal is unknown to the receiver, …
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Performance evaluation of communication systems with transmit diversity
… circumstances, the fourth outlines a novel differential scheme with full transmit diversity. In the first part, closed-form expressions for the bit error rate (BER) are derived for STBC based on Alamouti's scheme and utilizing M-ary phase shift keying (MPSK) modulation. The analysis is …
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Near-capacity MIMOs using iterative detection
… the complexity of MIMO channel estimation, a Differential Space-Time Spreading (DSTS) scheme is designed that employs non-coherent detection. Additionally, in order to maximise the coding advantage of DSTS, it is combined with Sphere Packing (SP) modulation. The related capacity analysis shows …