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 64 for “"Wireless Local Area Networks"”.
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On Wireless Local Area Networks
Wireless Local Area Networks (WLANs) have been widely developed during this decade, due to their mobility and exibility. During this period, IEEE 802.11 has become the dominant WLAN protocol. This thesis reports on research into WLANs, especially IEEE 802.11 networks. Since IEEE 802.11 denes rules …
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Energy-efficient Communication in Ad Hoc Wireless Local Area Networks
Die Funktechnik wird heutzutage in vielen Bereichen, beispielsweise in der Computer-, Kommunikations- und Steuerungstechnik, verwendet. Eine der populärsten Funktechnologien, die der Klasse der lokalen Netzwerke (LANs) zugerechnet wird, ist IEEE 802.11. Die Mitte der achtziger Jahre konzipierte und …
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Greediness control algorithm for multimedia streaming in wireless local area networks
… while streaming multimedia in a residential Wireless Local Area Network (WLAN). Inconsistencies have been identified that can have a severe impact on the Quality of Experience (QoE) experienced by end users. This problem arises as a result of the streaming processes reliance on rate …
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An admission control scheme for IEEE 802.11e wireless local area networks
… increase in the deployment and use of 802.11 Wireless Local Area Networks (WLANs). These networks are easy to deploy and maintain, while providing reasonably high data rates at a low cost. In the paradigm of Next-Generation-Networks (NGNs), WLANs can be seen as an important access network …
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Load-Aware Traffic Control in Software-Defined Enterprise Wireless Local Area Networks
… Bring Your Own Device (BYOD), modern enterprise Wireless Local Area Networks (WLANs) deployments always consist of multiple Access Points (APs) to meet the fast-increasing demand for wireless access. In order to avoid network congestion which leads to issues such as suboptimal Quality of Service …
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Cater: An Opportunistic Medium Access Control Protocol for Wireless Local Area Networks
… fully exploiting the channel of an ad hoc wireless LAN. This new, opportunistic medium access control protocol is called CATER (Code Adapts To Enhance Reliability) and is based on the proposed MAC standard for wireless local area networks (WLAN)-IEEE 802.11 [IEE96]. As currently proposed, …
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Implementation and Analysis of Wireless Local Area Networks for High-Mobility Telematics
Wireless networks provide communications to fixed, portable and mobile users and offer substantial flexibility to both end-users and service providers. Current cellular/PCS networks do not offer cost effective high data rate services for applications, such as, telematics, traffic surveillance and …
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Channel assignment strategies for throughput enhancement in high density wireless local area networks
The emergence of high density wireless local area network (WLAN) deployments in recent years is a testament to both the insatiable demands for wireless broadband services and the ubiquity of WLAN technology. The increased density of WLAN deployments brings with it the potential of increased …
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Filtering techniques for mitigating microwave oven interference on 802.11b wireless local area networks
… the increasing popularity and assimilation of wireless devices into the everyday lives of people, the issue of their feasibility for coexisting with other radio frequency (RF) devices arises. Particularly strong interferers for the IEEE 802.11b standard are microwave ovens, since both operate …
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Feasibility of Spectrum Sharing Between Airborne Weather Radar and Wireless Local Area Networks
Emerging technologies such as wireless local area networks and cellular telephones have dramatically increased the use of wireless communications services within the last 10 years. The shortage of available spectrum exists due to increasing demand for wireless services and current spectrum …
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Alibi framework for identifying insider jamming attacks in half-duplex wireless local area networks
"Recent advances in wireless communications and digital electronics have enabled rapid development of a variety of wireless network technologies, such as wireless LANs, home networks, multi-hop ad hoc networks, and sensor networks. Wireless networks, unfortunately, are vulnerable to radio jamming …
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Design And Hardware Implementation Of A Novel Scrambling Security Algorithm For Robust Wireless Local Area Networks
The IEEE802.11 standard for wireless networks includes a Wired Equivalent Privacy (WEP) protocol, which is a popular wireless secure communication stream cipher protocol approach to network security used to protect link-layer communications from eavesdropping and other attacks. It allows user to …
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Analysis and improvement of medium access control protocols in wireless networks. Performance modelling and Quality-of-Service enhancement of IEEE 802.11e MAC in wireless local area networks under heterogeneous multimedia traffic.
In order to efficiently utilize the scarce wireless resource as well as keep up with the ever-increasing demand for Quality-of-Service (QoS) of multimedia applications, wireless networks are undergoing rapid development and dramatic changes in the underlying technologies and protocols. The Medium …
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Enhancing Security in 802.11 and 802.1 X Networks with Intrusion Detection
The convenience and low cost of 802.11-based Wireless Local Area Networks (WLANs) complemented with 802.1 X authentication has led to widespread deployment in the consumer, industrial and military sectors. The combination of wireless signals radiating further than the intended coverage area, flaws …
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An implementation of a 5.25 GHz transceiver for high data rate wireless applications
… of high data rate information across wireless channels has grown immensely over the past decade. Wireless devices available today including mobile phones, wireless local area networks (WLANs) and Bluetooth radios have realized a wide variety of applications at data rates ranging from …
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Analyzing Wireless LAN Security Overhead
Wireless local area networks (WLAN) are beginning to play a much larger role in corporate network environments and are already very popular for home networking applications. This increase in accessibility has created large security holes for hackers and thieves to abuse, which is finally being …
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Spread OFDM via carrier interferometry spreading codes: performance, throughput, and PAPR enhancement
… (OFDM) has been an important technique in wireless communication architectures since the 1970's 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 …
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Power evaluation and performance enhancement of CSMA/CA based WLANs.
… Access with Collision Avoidance (CSMA/CA) based Wireless Local Area Networks (WLANs) are becoming pervasive. As the most commonly employed standard in WLANs, IEEE 802.11 not only gives rise to health and safety concern from the general public, but also has the potential for enhanced performance. …
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Sistemas integrados de la navegación mediante redes locales inalámbricas
… explains the methodology used in the design of Wireless Local Area Networks (WLANs) and puts forward one particular configuration suitable for Integrated Navigation Systems (INSs).The choice of the Extremely High Frequency band (EHF) is based on two fundamental reasons. Firstly, EHF waves range …
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