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 13 of 13 for “"adjacent channel interference"”.
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Fundamentals of Efficient Spectrum Access and Co-existence with Receiver Nonlinearity
… can impair receiver performance by harmful adjacent channel interference in non-intuitive ways. Next generation wireless networks will see unprecedented diversity across receiver and radio technologies accessing the same band of spectrum in spatio-temporal proximity. Ensuring adjacent …
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Bluetooth Frequency Hop Selection Kernel Impact on "Inter-Piconet" Interference
… can be attributed to Bluetooth "inter-piconet" interference. To date, very little has been published on the subject of inter-piconet interference. Previous studies have derived mean packet error rates for an increase in the number of piconets present. To come up with the mean rate, many papers …
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Digital demodulation techniques for radio channels
… digital modulation will be examined in terms of Adjacent Channel Interference (ACI) requirements. Simulation techniques for the mobile radio channel are discussed, for evaluation of demodulator performance. Existing demodulation techniques were reviewed, with several of these simulated to find …
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Performance Evaluation of DECT in Different Radio Environments
… the performance of DECT in different channel conditions. DECT is simulated using the Signal Processing WorkSystem (SPW) software in different channels including the additive white Gaussian noise (AWGN) channel, the flat faded Rayleigh channel, the frequency selective faded Rayleigh …
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Optimal Access Point Selection and Channel Assignment in IEEE 802.11 Networks
… In consequence, efficient assignment of channels becomes necessary to avoid and minimize interference. In this work, an optimal AP selection was developed by balancing traffic load. An optimization problem was formulated that minimizes heavy congestion. As a result, APs in wireless LANs …
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Oscillator Phase Noise Reduction Using Nonlinear Design Techniques
… Bit-Error-Rate (BER), and phase-locked loop adjacent-channel interference. RF oscillator circuits contain at least one active device, usually a transistor. The active device has noise properties which generally dominate the noise characteristic limits of an oscillator. Since all noise …
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Device Shot Noise and Saturation Effects on Oscillator Phase Noise
… hardware. Phase noise directly contributes to adjacent-channel interference and an increase in bit error rate (BER). Understanding the operation of an oscillator can help with the oscillator design process. Also, the understanding of the noise processes within an oscillator can add insight to …
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Performance analysis of a multistage multicarrier demultiplexer/demodulator (M-MCDD) in the presence of interference and quantization error
… for demultiplexing signals composed of N = 2 1 channels due to its high level of modularity, low computational complexity and low power consumption. Originally proposed by Göckler in 1992, the M-MCDD is considered one of the best available MCVDs to demultiplex composite MF-TDMA signals in the …
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Integration of Wireless Sensor Network with CubeSat Satellite System for Enhanced Agricultural Monitoring
… assumptions (aligned slots, no doppler, benign adjacent-channel interference), the discovery model predicts fast convergence for small gateway populations: most gateway register within one to a few windows (mean ≈2.9 windows in the runs), bounded collisions, and stable …
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Channel modeling and interference rejection for CDMA automatic vehicle monitoring systems
… represents an effective approach for CDMA interference rejection. This technique is especially appropriate at the mobile receiver where there is little prior knowledge of the spreading codes of the other users. This thesis presents enhanced forms of the Time Dependent Adaptive Filter …
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Optimization and Algorithms for Wireless Networks: Enhancing Problem Solvability, Channel Bonding Under Demand Stochasticity, and Receiver Characteristic Awareness
… optimality gap. The second problem is optimal channel bonding in wireless LANs under demand uncertainty. An access point (AP) can aggregate multiple contiguous channels to satisfy demand. We discuss how to optimally utilize available frequency bands under uncertainty in AP demand using two …
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Feasibility Study and Performance Evaluation of Vehicle-to-Everything (V2X) Communications Applications
… by DSRC radios and other devices that operate on adjacent frequencies using different wireless communication standards. Although wireless technology is available for safety-critical communications, few applications have been developed to improve railroad crossing safety. A V2T communication system …