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 “"cooperative sensing"”.
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Fusion of remote vision and on-board acceleration data for the vibration estimation of large space structures
… large space structure. This technique is a cooperative sensing approach using remote free-flying robot observers equipped with vision sensors and structure-mounted accelerometers. This approach exploits the complementary nature of the two types of sensors.
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Multi-Slot Cooperative Spectrum Sensing for Cognitive Radio Networks
… bands. This dissertation investigates spectrum sensing cognitive radio with the aim of identifying an efficient model to effectively utilize the available spectrum. A cooperative spectrum sensing cognitive radio model is presented based on energy detection sensing and multi-slot spectrum …
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PERFORMANCE OF COUNTING RULES FOR PRIMARY USER DETECTION
In this dissertation we consider the problem of cooperative sensing for secondary user access to primary user spectrum in cognitive radio systems. Using a fusion center or an access point, the cooperative users decide on the availability of spectrum for their use. Both Neyman-Pearson and Bayes …
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MULTI USER COOPERATION SPECTRUM SENSING IN WIRELESS COGNITIVE RADIO NETWORKS
… radio environment. From this viewpoint, spectrum sensing is becoming increasingly important to new and future wireless communication systems, which is designed to monitor the usage of the radio spectrum and reliably identify the unused bands to enable wireless devices to switch from one vacant …
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MANAGING DYNAMIC SPECTRUM ACCESS UNDER UNCERTAINTY IN COGNITIVE RADIO NETWORKS
… the use of SU cooperation over individual sensing to improve sensing accuracy.Our overall goal is to manage dynamic spectrum access using cooperative sensing and provide provable performance guarantees. We have included the following in the thesis: We first consider a CRN consisting of …
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Spectrum Sensing in Cognitive Radio Networks
… is concerned with developing spectrum sensing algorithms in cognitive radio networks where a single or multiple cognitive radios (CRs) assist in detecting licensed primary bands employed by single or multiple primary users. First, given that orthogonal frequency-division multiplexing …
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Enabling Dynamic Spectrum Access in 4G Networks and Beyond
… operators. We analyze access rules based on sensing and exclusion areas, which in practice can be enforced through geolocation databases. Our results show that receiver-only sensing provides insufficient protection for primary and co-existing secondary users and overall low social welfare. On …
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Optimalizace interferencí v celulárních komunikačních systémech
Tato práce je rozdělena do šesti kapitol. První kapitola vysvětluje rozdíly mezi fyzickou vrstvou uplinků systémů LTE a LTE Advanced, zkoumá charakteristiky kanálu komunikace D2D v rámci sítě LTE Advanced, a navrhuje mechanismy optimalizace interferencí. Rovněž je v práci prezentována struktura …