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1	Performance tuning and cost discovery of mobile web-based applications Book, Matthias, Gruhn, Volker, Hülder, Malte, Köhler, André 12 November 2018 (has links) When considering the addition of a mobile presentation channel to an existing web-based application, project managers should know how the mobile channel\|s characteristics will impact the user experience and the cost of using the application, even before development begins. The PETTICOAT (Performance Tuning and cost discovery of mobile web-based Applications) approach presented here provides decision-makers with indicators on the economical feasibility of mobile channel development. In a nutshell, it involves analysing interaction patterns on the existing stationary channel, identifying key business processes among them, measuring the time and data volume incurred in their execution, and then simulating how the same interaction patterns would run when subjected to the frame conditions of a mobile channel. As a result of the simulation, we then gain time and volume projections for those interaction patterns that allow us to estimate the costs incurred by executing certain business processes on different mobile channels. info:eu-repo/classification/ddc/005.1 ddc:005.1
2	Analysis of the effects of phase noise and frequency offset in orthogonal frequency division multiplexing (OFDM) systems Erdogan, Ahmet Yasin 03 1900 (has links) Approved for public release, distribution is unlimited / Orthogonal frequency division multiplexing (OFDM) is being successfully used in numerous applications. It was chosen for IEEE 802.11a wireless local area network (WLAN) standard, and it is being considered for the fourthgeneration mobile communication systems. Along with its many attractive features, OFDM has some principal drawbacks. Sensitivity to frequency errors is the most dominant of these drawbacks. In this thesis, the frequency offset and phase noise effects on OFDM based communication systems are investigated under a variety of channel conditions covering both indoor and outdoor environments. The simulation performance results of the OFDM system for these channels are presented. / Lieutenant Junior Grade, Turkish Navy Multiplexing Brownian motion processes Electrical engineering Frequency offset Phase noise Differential decoding IFFT (Inverse fast Fourier transform) Guard interval FFT MATLAB Additive white Gaussian noise (AWGN) Interleaver Deinterleaver Mobile channels Convolutional encoding Viterbi decoder Probability of bit error Weiner process

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Performance tuning and cost discovery of mobile web-based applications

Analysis of the effects of phase noise and frequency offset in orthogonal frequency division multiplexing (OFDM) systems