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 7 of 7 for “"M-QAM"”.
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Error relilient video communications using high level M-QAM. Modelling and simulation of a comparative analysis of a dual-priority M-QAM transmission system for H.264/AVC video applications over band-limited and error-phone channels.
… 16, 64 and 256) Quadrature Amplitude Modulation (QAM) transmission system suitable for video transmission is presented. The communication system is based on layered video coding and unequal error protection to make the video bitstream robust to channel errors. An implementation is described in …
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Adaptive multilevel quadrature amplitude radio implementation in programmable logic
… methods like Quadrature Amplitude Modulation (QAM) to increase the channel efficiency and maximize data throughput. Unfortunately, the performance of high level QAM modulations in the wireless channel is sensitive to channel imperfections and throughput is degraded significantly at low …
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Digital Signal Processing for Front-end Non-idealities in Coherent Optical OFDM system
… MPSK, pilot-aided MPSK and pilot-aided M-QAM.
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Physical layer DSP design of a wireless gigabit/s indoor LAN
… multilevel Quadrature Amplitude Modulation (M-QAM). The proposed network design allows two-way communication through a Time Division Duplexing (TDD) scheme and provides multiuser support through a series of algorithms that establish session links and allocate subchannels among devices in an …
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The Effect of Receiver Nonlinearity and Nonlinearity Induced Interference on the Performance of Amplitude Modulated Signals
… the probability density functions of M-PAM and M-QAM signals through an AWGN channel taking into account the impact of receiver nonlinearity. A change of variables technique is used to provide a relationship between the pdf of these signals with a linear receiver and the pdf with a nonlinear …
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Fast all-digital carrier synchronization techniques for linear modulation formats
… and M -ary quadrature amplitude modulation ( M -QAM)). Carrier synchronization is studied because, in passband communications, carrier phase and frequency offsets, due to modem oscillator discrepancies and distances between the users, corrupt the received data and must be removed for proper data …
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Coarse Radio Signal Classifier on a Hybrid FPGA/DSP/GPP Platform
… modulation (FM) and digital narrow band M-PSK, M-QAM and wideband signal orthogonal frequency division multiplexing (OFDM). A fully developed prototype of UCS system was designed and implemented in our laboratory using GNU radio software platform and Universal Software Radio Peripheral (USRP) …