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 20 for “"IEEE 802.16"”.
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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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Cross-layer RaCM design for vertically integrated wireless networks
… (WLAN/WMAN) technologies, more specifically IEEE 802.11 (or wireless fidelity, WiFi) and IEEE 802.16 (or wireless interoperability for microwave access, WiMAX), are well-suited to enterprise networking since wireless offers the advantages of rapid deployment in places that are difficult to …
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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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Analysis and Cross -Layer Design of Medium Access and Scheduling in Wireless Mesh Networks
… coordinate the operations of different layers in IEEE 802.16 backhaul mesh networks where the nodes are equipped with beamforming multiple antennas. We also study the cross-layer optimization problem for WMNs which employ IEEE 802.11 type simple transceivers, and design a completely distributed …
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A Performance Comparison of Frame Structures in WiMAX Multi-Hop Relay Networks
… relay systems are the newest amendment to the IEEE 802.16 standard for local and metropolitan area networks, else known as WiMAX. Relay systems come in different flavours, based on their capabilities and have the potential to offer many advantages over the single-hop technology. Upcoming …
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Spread OFDM via carrier interferometry spreading codes: performance, throughput, and PAPR enhancement
… and 1980's. OFDM is now the protocol in the IEEE 802.11a and IEEE 802.1 lg Wireless Local Area Networks (WLANs) standards, as well as the IEEE 802.16 Fixed Broadband standard. It is also a front-runner for implementation in future cellular standards and satellite systems. However, OFDM is not …
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Design and optimisation of a low cost Cognitive Mesh Network
… that integrates wireless technologies such as IEEE 802.22 WRAN, IEEE 802.16 WiMAX, IEEE 802.11 Wi-Fi, Blue-tooth etc. The recent proliferation of new devices on the market such as smart phones and, tablets, and the growing number of resource hungry applications has placed a serious strain on …
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System Design of an Integrated Terrestrial-Satellite Communications Network for Disaster Recovery
… system. The LMDS system was assumed to use IEEE 802.16 standard protocols although it currently uses its own proprietary protocols. Four possible topologies integrating both terrestrial and satellite network were investigated. The study showed that the task was more problematic and …
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Eigenspace Approach to Specific Emitter Identification of Orthogonal Frequency Division Multiplexing Signals
… frequency division multiplexing (OFDM) using the IEEE 802.16 specification (used for WiMAX) as a guideline for a variety of pilot arrangements.
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Spatial reuse in TDMA wireless networks
… location errors. Within the context of the IEEE 802.16 standard we show how CFSs can enhance, by factors of two, the VoIP capacity of multihop WiMAX networks. We also discuss how our CFS algorithms can be applied to other ongoing efforts aimed at improving VoIP capacity in WiMAX networks. …
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Context-Aware Mobility: A Distributed Approach to Context Management
… plethora of new wireless technologies, such as IEEE 802.11, IEEE 802.15, IEEE 802.16, UMTS, and more recently LTE, etc, has triggered several efforts to integrate these technologies in a converged world of transparent and ubiquitous wireless connectivity. Most of these technologies have evolved …
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Channel Estimation in Single -Carrier and Multi-Carrier Communication Systems
… which have influenced recent standards, e.g., IEEE 802.11 and IEEE 802.16. Regardless of the communication systems, channel state information is required for reliable demodulation, and different structures pose distinctive channel estimation problems. This thesis studies channel estimation in …
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Performance analysis and application development of hybrid WiMAX-WiFi IP video surveillance systems
… each unit and module. WiMAX is based on the IEEE 802.16 family of standards. Wi-Fi, on the other hand, is a wireless access network operating in the local area network; and it is based on the IEEE 802.11 standards.
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Multiband orthogonal frequency division multiplexing for ultra-wideband wireless communication: analysis, extensions and implementation aspects
… of interference from incumbent systems such as IEEE 802.16 ("WiMAX"). We also present a Gaussian approximation for WiMAX interference, and establish its accuracy through comparison with exact analysis and simulations. We then propose a two-stage interference mitigation technique for coded …
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Dynamic reconfiguration methods in FPGA-based softawre defined radio system for wireless mobile standards
… 3rd Generation Partnership Project (3GPP) LTE, IEEE 802.16, IEEE 802.11, WCDMA and extensions to make compatible with white space. In addition, a study of power consumption relating to Partial Reconfiguration (PR) is undertaken based on implementation with the latest PR design flow. The proposed …
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Concurrent multipath transmission to improve performance for multi-homed devices in heterogeneous networks
… variety of access network technologies - such as IEEE 802.11, wireless local area network (WLAN), IEEE 802.16, Worldwide Interoperability for Microwave Access (WIMAX) and Long Term Evolution (LTE) - which can be integrated to offer ubiquitous access in a heterogeneous network environment. User …
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Service oriented networking for multimedia applications in broadband wireless networks
… the near future. WiMAX networks are based on the IEEE 802.16 standards which have defined different Quality of Service (QoS) classes to support a broad range of applications with varying service requirements to mobile and stationary users. The growth of multimedia traffic that requires special …
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On the realisation of sequential fast fourier transform for orthogonal frequency division multiplexing based on field programmable gate array
… many 4th generation wireless standards, such as IEEE 802.20, IEEE 802.16, and 3GPP2, Ultra Mobile Broadband (UMB), as well as 3G Long Term Evaluation (LTE), all rely heavily on using OFDM multicarrier modulation. OFDM is now favoured in many physical layers for mobile and wireless radio systems, …