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.
Results
Showing 1 to 20 of 104 for “"IEEE 802.11"”.
-
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 …
-
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 …
-
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 …
-
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 …
-
Indoor Propagation Modeling at 2.4 GHz for IEEE 802.11 Networks
… study is to characterize the indoor channel for 802.11 wireless local area networks at 2.4 GHz frequency. This thesis presents a channel model based on measurements conducted in commonly found scenarios in buildings. These scenarios include closed corridor, open corridor, classroom, and computer …
-
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 …
-
Single queue priority scheduler for video transmission in IEEE 802.11 networks
… network like Wireless Local Area Network or IEEE 802.11. The challenges range from handover, delay, packet loss, jitter, fading and signal loss. Some studies have suggested an increase in network resources as a way to cater for the huge demands and reduce congestion in the network, while …
-
Susceptibility of a digital turbine control system to IEEE 802.11 compliant emissions.
… Peak's planned turbine controls upgrade to IEEE 802.11 compliant wireless radio emissions. The study includes a review of previous research, industry emissions standards, and technical overview of the various IEEE 802.11 protocols and details the testing methodology utilized to evaluate the …
-
Performance of voice and data transmission using the IEEE 802.11 MAC Protocol
The IEEE 802.11 wireless LAN standard attempts to provide high throughput and reliable data delivery for stations transmitting over a lossy, wireless medium. To efficiently allocate resources for bursty sources, the 802.11 Medium Access Control (MAC) sublayer uses a type of Carrier Sense Multiple …
-
A Review of Setup Practices and Procedures for Creating IEEE 802.11 Wireless Community Networks
<p>IEEE 802.11 wireless networking equipment has made it possible to bridge the last mile for new broadband internet service providers. Inexpensive wireless networking equipment and high gain antennas enable high speed internet delivery at a fraction of the cost of installing or upgrading land …
-
Simulation of the MAC Portion of IEEE 802.11 and Bursts of Errors for Wireless Data Networks
… the medium access control (MAC) portion of the IEEE 802.11 wireless local area network (LAN) protocol.An important ingredient in rapid expansion of wireless networks is the seamless transition between wired and wireless systems. The IEEE standards group in charge of developing the widely used …
-
Throughput Optimization and Transmitter Power Saving (TOTPS) Algorithm and Extended TOTPS (ETOTPS) Algorithm for IEEE 802.11 Links
The IEEE 802.11 wireless local area network (WLAN) standard supports multiple transmission modes. However, the higher mandatory data rate mode does not necessarily yield higher throughput. This research started from the relationship between the link throughput and the channel's carrier-to-noise …
-
Modelado y optimización de IEEE 802.11 para su aplicación en el despliegue de redes extensas en zonas rurales aisladas de países en desarrollo
… que permiten asegurar que la tecnología IEEE 802.11, diseñada en principio como solución para redes inalámbricas de área local, puede ser útil para el despliegue de redes extensas en zonas aisladas de países en desarrollo por su flexibilidad, prestaciones y bajo costo. No obstante, el …
-
Practical Realisation and Validation of a Wi-Fi Policing Algorithm
… for implementation on real hardware. As the IEEE 802.11 standard’s medium access mechanism is decentralized, stations can potentially refuse to abide by the standard and gain performance benefit at the cost of the performance of compliant stations. In this thesis, we study, extend, and …
-
Energy-efficient Communication in Ad Hoc Wireless Local Area Networks
… lokalen Netzwerke (LANs) zugerechnet wird, ist IEEE 802.11. Die Mitte der achtziger Jahre konzipierte und 1995 vom IEEE in seiner Urform standardisierte Funktechnologie hat nicht zuletzt wegen den vergleichsweise hohen Übertragungsraten vor allem im Internet-Anschlussbereich von (mobilen) …
-
Cater: An Opportunistic Medium Access Control Protocol for Wireless Local Area Networks
… standard for wireless local area networks (WLAN)-IEEE 802.11 [IEE96]. As currently proposed, IEEE 802.11 uses a fixed pseudo-noise (PN) code for spreading the information signal, implying a fixed process gain at the receiver. When the channel degrades, IEEE 802.11 offers only retransmissions at …
-
On Wireless Local Area Networks
… 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 at the MAC and Physical (PHY) layers, which are introduced in Chapter 1, the rst part …
Page 1 of 6