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 16 of 16 for “"WPAN"”.
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Estudi de xarxes WPAN 802.15.4
… de les característiques de les xarxes WPAN 802.15.4 i de les xarxes ZigBee.
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Effective Scheduling Algorithms for Cross-Interference Mitigation in Heterogeneous Wireless Networks
… and Low-Rate Wireless Personal Area Network (LR-WPAN), because of asymmetric transmission power, incompatible Clear Channel Assessment (CCA) and different timing parameters. Plenty of studies have shown that WiFi always has a higher priority to access the wireless medium and even block LR-WPAN …
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Dynamic channel selection for meshed wireless personal area network
… The need to extend the coverage area of the WPAN without increasing the transmission power and response to the suddenly user increase in the network is one of the primary motivations that lead researchers to investigate the required changes for topology and study performance parameters to …
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Design and verification of SC-FDE/OFDM communication schemes for millimetre-wave wireless system using FPGA technologies
… of millimetre-wave personal area networks (WPANs) in the 60 GHz frequency band. Single-carrier and multicarrier transmission techniques are considered in the implementation of a 64.8 GHz WPAN capable of achieving a reliable indoor link. Thus, single-carrier with frequency domain equalization …
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Ieee 802.15.4 Wireless Sensor Networks: Gts Scheduling and Service Differentiation
… of Low Rate Wireless Personal Area Networks (LR-WPAN) [1] driven by the large number of emerging applications such as home automation, health-care monitoring and environmental surveillance. To fulfill the needs for these emerging applications, IEEE has created a new standard called IEEE 802.15.4 …
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Machine to machine communication for physical security
… sensors, wireless personal area networking (WPAN), and complex coding for Programmable Logic Controllers (PLC), for delivering data to a central controller and the internet. Based on the processed data, information was generated and passed to the subscribers. The demonstration of the M2M …
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IEEE 802.15.4 Implementation on an Embedded Device
… a low-rate wireless personal area network (LR-WPAN) standard, on a standalone embedded machine. The implementation is done using a universal software radio peripheral embedded, USRP E100, an open source software development toolkit for SDR, GNU Radio, and UCLA ZigBee PHY GNU Radio application. …
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Wireless personal area networks and free-space optical links
… of two major Wireless Personal Area Network (WPAN) technologies: IrDA and Bluetooth. Recent advancesin wireless technology have made it possible to put networking technology into small portable devices. During the past few years, WPAN technologies have been the subject of a tremendous growth …
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A study of Bluetooth Frequency Hopping sequence : modeling and a practical attack
… is known as Wireless Personal Area Networks (WPAN). Because of its attractive features of small size, low cost, and low power, Bluetooth gains a world wide usage. It is embedded in many portable computing devices and considered as a good replacement for local wire connections. Since wireless …
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Smart PIN: performance and cost-oriented context-aware personal information network
… of heterogeneous individual networks such as WPAN, WLAN, WMAN and Cellular network, adopting the IP as common infrastructural protocol and providing virtually always-connected network. Furthermore, there are many devices which enable easy acquisition and storage of information as pictures, …
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A methodology and software platform for building wearable communities
… senses. Wireless personal area networks (WPAN) are a new class of wireless networks that provide seamless ad hoc communication over short-range radio links. The convergence of these technologies creates new opportunities for technological support of social interactions and face-to-face …
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High Speed Turbo Tcm Ofdm For Uwb And Powerline System
… One of UWB proposals in IEEE P802.15 WPAN project is to use multi-band OFDM system and punctured convolutional codes for UWB channels supporting data rate up to 480Mb/s. The HomePlug Networking system using the medium of power line wiring also selects OFDM as the modulation scheme due …
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An investigation into the viability of UWB as lower-layer for Bluetooth
… between the two Wireless Personal Area Network (WPAN) technologies. Prior to channelling data over a UWB connection, a compliant Bluetooth and UWB connection were configured between two Linux enabled computers by use of Bluetooth and UWB enabled Universal Serial Bus (USB) dongles. BlueZ, the …
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On a Joint Physical Layer and Medium Access Control Sublayer Design for Efficient Wireless Sensor Networks and Applications
… for low-rate wireless personal area networks (LR-WPAN). Future applications may require large WSNs consisting of huge numbers of inexpensive wireless sensor nodes with limited resources (energy, bandwidth), operating in harsh environmental conditions. WSNs must perform reliably despite novel …
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Reduction in Coexistent WLAN Interference Through Statistical Traffic Management
In recent years, an increasing number of devices have been developed for operation in the bands allocated by the Federal Communications Commission (FCC) for license-free operation. Given the rules governing devices in these bands, it is possible for interference created by these devices to …
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On the Development of a Very Fast Simulator for TH-UWB Systems = Sobre el Desarrollo de un Simulador Rápido para los Sistemas TH-UWB
… (WLAN) and Wireless Personal Area Network (WPAN). This technology uses short pulses in order to transmit large amounts of digital data over a wide spectrum of frequency bands with a very low power. Unfortunately, in order to process ultrawideband signals, an extremely large sampling rate is …