Search for dissertations about: "multichannel systems"
Showing result 1 - 5 of 21 swedish dissertations containing the words multichannel systems.
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1. Multicarrier Modulation and Coding for Multichannel Systems
Abstract : In this thesis decision directed coherent detectors for single- and multicarriersystems employing an MMSE channel estimation technique is presented. Thedetectors are designed for Rayleigh fading channels and DQPSK or p/4-DQPSKmodulation and exploit knowledge of the fading process correlation. READ MORE
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2. Selfish Dynamic Spectrum Access in Multichannel Wireless Networks : Complete and incomplete information analysis
Abstract : The increasing popularity and widespread deployment of wireless data systems fuel the increasing demand for more spectrum. On the other hand, various studies measuring spectrum utilization show that there is a huge variation in spectrum utilization at different times and locations. READ MORE
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3. Speech Signal Extraction : A Multichannel Approach
Abstract : In speech signal extraction the aim is to extract human speech in a physical environment by using microphones. In any real world environment there are many disturbance sources that cause unwanted sound pressure, which in turn may degrade the comprehension of the speech at the microphones. READ MORE
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4. Compensation of Laser Phase Noise Using DSP in Multichannel Fiber-Optic Communications
Abstract : One of the main impairments that limit the throughput of fiber-optic communication systems is laser phase noise, where the phase of the laser output drifts with time. This impairment can be highly correlated across channels that share lasers in multichannel fiber-optic systems based on, e.g. READ MORE
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5. Structured interface suppression in multichannel systems
Abstract : .... READ MORE