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 20 of 545 for “"IEEE"”.
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IEEE 802.15.4 Implementation on an Embedded Device
… of SDR, this thesis shows how to implement IEEE 802.14.5, 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 …
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Low-power single-precision IEEE Floating-point unit
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
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An interactive display using IEEE STD 488-1978 interface
Not Available.
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MIMO-aware Medium Access Control in IEEE 802.11 Networks
… (MAC) layer is considered very important in the IEEE 802.11-based wireless networks, as it supports many crucial operational functions. Hence, QoS support in WMNs can be enhanced through the efficient cross-layer design of MAC protocols that utilizes advanced physical layer technologies viz …
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Improved Signal Integrity in IEEE 1149.1 Boundary Scan Designs
… issues in the use and application of the IEEE 1149.1 Standard at the board level in conjunction with its test system. Setup or hold times violations may occur in a boundary scan chain using IEEE 1149.1 compliant devices. A practical study of the TDI-TDO scan data path has been conducted to …
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Dynamic Channel -Aware Bandwidth Management in IEEE 802.11 Networks
… data in a dynamic environment such as a IEEE 802.11 wireless network is to provide the application minimum throughput guarantees. In this work, we present a cross-layer architecture that enables the provision of rate guarantees to multimedia applications, while still catering to …
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A hardware testbed for measuring IEEE 802.11g DCF performance
… (DCF) is the oldest and most widely-used IEEE 802.11 contention-based channel access control protocol. DCF adds a significant amount of overhead in the form of preambles, frame headers, randomised binary exponential back-off and inter-frame spaces. Having accurate and verified performance …
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Link Adaptation Algorithm and Metric for IEEE Standard 802.16
… of Electrical and Electronics Engineers (IEEE) 802.16 task group recently standardized the physical (PHY) and medium-access control (MAC) layers for BWA systems. To operate in a wide range of physical channel conditions, the standard defines a robust and flexible PHY. A wide range of …
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Enhanced Collision Resolution for the IEEE 802.11 Distributed Coordination Function
The IEEE 802.11 standard relies on the Distributed Coordination Function (DCF) as the fundamental medium access control method. DCF uses the Binary Exponential Backoff (BEB) algorithm to regulate channel access. The backoff period determined by BEB depends on a contention window (CW) whose size is …
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An Open Management and Administration Platform for IEEE 802.11 Networks
<p>The deployment of Wireless Local Area Network (WLAN) has greatly increased in past years. Due to the large deployment of the WLAN, the immediate need of management platforms has been recognized, which has a significant impact on the performance of a WLAN. Although there are various …
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Adaptive IEEE 802.15.4e LLDN scheduler for wireless network control systems
… and throughput of wireless communication using IEEE 802.15.4 and IEEE 802.15.4e Low Latency Deterministic Network (LLDN) protocols for different sensor sampling rates in an LCV scenario and creates a guidelines for the system designers to select the right sensor sampling times. Furthermore, it …
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Indoor Propagation Modeling at 2.4 GHz for IEEE 802.11 Networks
Indoor use of wireless systems poses one of the biggest design challenges. It is difficult to predict the propagation of a radio frequency wave in an indoor environment. To assist in deploying the above systems, characterization of the indoor radio propagation channel is essential. The …
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RF techniques for IEEE 802.15.4: circuit design and device modelling
… low power applications. After identifying the IEEE 802.15.4 standard (commercially known as ZigBee) as the one of choice, and analysing several front-end architectures on which its transceiver circuitry can be based, an application, the Tyre Pressure Monitoring System (TPMS) is selected to …
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ETHERNET IN AUTOMOTIVE: THE CASE OF IEEE AUDIO VIDEO BRIDGING
… Ethernet-based, in particolare, lo standard IEEE Au- dio Video Bridging (AVB) ha suscitato un notevole interesse sia presso la comunità scientifica che presso l’industria automobilistica. Tuttavia, sebbene il supporto a traffico di tipo multimediale sia ormai largamente disponibile con molti …
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Connection admission control and packet scheduling for IEEE 802.16 networks
The IEEE 802.16 standard introduced as one of the Wireless Metropolitan Area Networks (WMAN) for Broadband Wireless Access (BWA) which is known as Worldwide Interoperability for Microwave Access (WiMAX), provides a solution of broadband connectivity to areas where wired infrastructure is …
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Peak-load transmission pricing for the IEEE reliability test system
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Hybrid FPGA and GPP Implementation of IEEE 802.15.4 Physical Layer
In this thesis, two different cases of hybrid IEEE 802.15.4 PHY (Physical Layer) implementation are explored. The first case is an FPGA implementation of IEEE 802.15.4 PHY on the Xilinx Spartan-3A DSP FPGA of USRP N210. All of the signal processing tasks are performed on the FPGA, while less …
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Ieee 802.15.4 Wireless Sensor Networks: Gts Scheduling and Service Differentiation
… the needs for these emerging applications, IEEE has created a new standard called IEEE 802.15.4 for LR-WPAN, which has been widely accepted as the de facto standard for wireless sensor networks. Unlike IEEE 802.11 [2], which was designed for Wireless Local Area Networks (WLAN), it focuses on …
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Optimal Access Point Selection and Channel Assignment in IEEE 802.11 Networks
Designing 802.11 wireless networks includes two major components: selection of access points (APs) in the demand areas and assignment of radio frequencies to each AP. Coverage and capacity are some key issues when placing APs in a demand area. APs need to cover all users. A user is considered …
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An admission control scheme for IEEE 802.11e wireless local area networks
… designed for best effort operation. The IEEE 802. 11e standard was introduced to overcome the lack of QoS support for the legacy IEEE 802 .11 WLANs. It enhances the Media Access Control (MAC) layer operations to incorporate service differentiation. However, there is a need to prevent …
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