Searched for: subject%3A%22Wireless%255C%252BCommunication%22
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Wang, Xiangwen (author)
Increasing wireless communication requirements of data rates, capacity and coverage, and evolution and maturation of wireless equipment prompt wireless communication research insight concentrating on millimeter wave (mm-wave) frequency. However, high reflection coefficients and high path loss cause large shadow areas (e.g. behind the buildings)...
master thesis 2023
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Dialani, Hitesh (author)
This thesis presents a practical topology for achieving highly efficient dual-side wireless power transfer (WPT). Traditional WPT systems with a diode rectifier on the secondary side lack flexibility in load matching, requiring the integration of an additional dc/dc converter at the back end. However, this approach leads to increased power...
master thesis 2023
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van Heteren, Mauries (author)
The underwater acoustic environment is amongst the most challenging mediums for wireless communications. The three distinct challenges of underwater acoustic communication are the low and nonuniform propagation speed, frequency-dependent attenuation and time-varying multipath propagation.<br/>To cope with these challenges, physical layer...
master thesis 2022
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Wervers, Michel (author)
As more and more devices have become wireless, the traditional Radio Frequency (RF) spectrum has become densely populated. To relieve this pressure, communication using light, visible light communication (VLC), has been proposed by many researchers. However, not all light sources can be modulated to transmit information. Therefore, the use of...
master thesis 2021
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Buenaventura Camps, Marta (author)
New generations of mobile communications are much more demanding in order to provide critical real-time services and extremely fast connections that have become feasible with 5G. A wider spectrum is needed to achieve such high data rates and millimeter-wave frequencies are used for this purpose. Adaptive beamforming is applied at base stations...
master thesis 2021
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Burgers, Bastiaan (author)
Decreasing injuries in football is a topic of interest for the KNVB and KNHB. To reach this goal, the use of smart sensor pants is researched. The data will be used to develop models for finding injury risk factors that are related to movements. Currently, the system is capable of reading out the IMUs and storing the data on an SD-card, for post...
master thesis 2021
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Skrekas, Vassilis (author)
The field of active implantable medical devices (IMDs) has made huge steps forward in the last years. IMDs are used today for the treatment of previously untreatable conditions as well as the continuous monitoring of the health of patients. The field, where active IMDs have been the most successful, is the field of neurological conditions, on...
master thesis 2020
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Šabanović, Armin (author)
This thesis introduces the concept of phase rotation cancellation (PRC) as a previously unknown error mechanism in narrow-band FSK systems, and proposes a new FSK demodulation algorithm to resolve PRC errors. Phase rotation cancellation is defined as an event where the signal phasor rotation in the IQ plane is temporarily cancelled by the...
master thesis 2019
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Delle Donne, Carlo (author)
Batteryless network nodes could enable unprecedented ubiquitous sensing applications, while gathering energy from the environment and hence removing maintenance costs for batteries. However, these devices inherently suffer frequent power failures and reboots, due to the volatility of the incoming energy, thus classical synchronous message...
master thesis 2018
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Raftopoulou, Maria (author)
5G networks are expected to be used in many markets, one of which is the Factories of the Future (FoF). In the FoF, applications like regular monitoring and controlling of components (e.g. temperature) are introducing the need of massive deployment of sensors and actuators. Additionally, sensors which are monitoring time-critical components of...
master thesis 2018
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Nair, Varun (author)
Narrowband Internet-of-Things (NB-IoT), recently introduced by 3GPP, is a relevant Radio Access Technology (RAT) solution for deployment within smart grids, the electricity grids of the future, due to the need to provide low-cost connectivity to a large number of smart meters installed in households. Outage Restoration and Management (ORM), a...
master thesis 2017
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Geelen, Jinne (author)
Close collaboration between the Bioelectronics department at Delft University of Technology and the Neuroscience department at the Erasmus Medical Centre has resulted in a successful tethered design for a real-time epileptic seizure detection and suppression method for mice. The goal of the Neuromate project is to develop this method into a...
master thesis 2017
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Mukti, P.H. (author)
Wireless telecommunication services are growing rapidly both in terms of the underlying technology as well as in the nature of the applications. The trends point to further growth in the foreseeable future. However, the dynamic nature of the wireless channel places fundamental limitations on the performance of wireless communication system....
master thesis 2011
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Kok, S. (author)
Wireless communications have numerous applications in terrestrial and space environ-ments, but for one environment the number of civil wireless applications is small. This is the uderwater environment where for wireless communications acoustic waves are used instead of electromagnetic waves. The underwater acoustic channel is a very difficult...
master thesis 2011
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Kotobi, K. (author)
The studies about the effects of multipath fading and shadowing for wireless cooperative networks are insufficient. Almost all real wireless networks can be modeled by changing the parameters of the composite distribution which models both multipath and shadow fading. This composite distribution makes the analytical calculation of bit error rate...
master thesis 2011
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Waasdorp, P.A.C. (author)
Assume that two sub-graphs of a graph are available and that the graph represents the corridors in a building. Without using any previous knowledge on the entire graph, can these two sub-graphs be used to construct an extended view on the entire graph. To test this assumption a collection of algorithms will be designed and implemented which can...
master thesis 2010
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Spaans, K. (author)
Abstract - The objective is to design a suitable protocol for error-correction that is to be used in a multi-carrier wireless communication system in a multipath channel. Different kinds of codewordmapping are applied, that should enhance the errorcorrecting capabilities of existing codes. Simulations of the system are run to examine if this is...
master thesis 1999
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Munne, R. (author)
This report gives first an overview of the main modulation methods and of the multipath propagation effects. A model is described to simulate BPSK, QPSK and OK-QPSK in some measured indoor channels. Several pulse shapes are analysed and their effects discussed on single-user systems and on DS-CDMA. The main performance parameter is the bit error...
master thesis 1996
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Punt, J.B. (author)
Dynamic Channel Selection is an algorithm for allocating channels in a mobile wireless environment. The channels are not allocated according to location, but according to channel quality at the time of use. A mathematical model for Dynamic Channel Allocation as defined in the Digital European Cordless Telecommunication Standard was extended and...
master thesis 1994
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Satyanegara, H. (author)
In this thesis, the performance of star connected direct sequence spread spectrum (DS/SS) slotted code division multiple access (CDMA) systems in an indoor radio environment characterized by Rician fading has been examined. The performance parameters are the throughput, steady state delay and stability (namely the expected drift and state...
master thesis 1993
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