Πλοήγηση ανά Θέμα "Wireless local area networks (WLAN)"
Αποτελέσματα 1-20 από 26
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Building virtual 802.11 testbeds towards open 5G experimentation
(2016)Together with recent advancements in Radio Access Network (RAN) technologies, Wi-Fi is expected to be at the center of research on the subject of ubiquitous wireless connectivity, towards building the new 5G ecosystem. ... -
Cooperative mobile high-speed and personal area networks for the provision of pervasive e-health services
(2011)The present paper studies the performance of a high-speed third-generation (3.5G) networking technology (Enhanced Uplink), in collaboration with well known personal area networks (i.e. Zigbee and Bluetooth) and wireless ... -
A demonstration of video over a user centric prioritization scheme for wireless LANs
(2008)Due to the unreliable nature of the wireless medium, provisioning of the Quality of Service (QoS) in wireless LANs is by far more complicated than in wired networks. In this demo we show the efficiency of a new QoS support ... -
Enabling distributed spectral awareness for disaggregated 5G ultra-dense hetnets
(2019)Future wireless infrastructures will have to deal with significantly higher loads of data, produced by applications demanding higher capacity with lower latency for the exchanged information. 5G networks are expected to ... -
Fast Spectral Assessment for Handover Decisions in 5G Networks
(2019)In this paper, we present a UE-driven light-weight mechanism for fast handover decision and efficient WLAN selection in the context of 5G networks. As the network deployments are expected to be denser and the mobile user ... -
Flexible cross-technology offloading using SDN
(2017)Ultra-dense networks are expected to be the vehicle for better network coverage featuring higher speeds, augmented network capacity and more per cell end-users served. Towards meeting these stiff requirements, cells of ... -
Interference mitigation in co-working IEEE 802.11n WLANs
(2009)In a densely deployed Wireless Local Area Network (WLAN) environment, Access Points (APs) could be so close to cause significant channel interference. In the next generation IEEE 802.11n WLANs, inter-cell interference ... -
Joint beamforming and channel selection for multicast IEEE 802.11n WLANs
(2008)Multicast transmission over WLANs is becoming a popular application. IEEE 802.11n technology is developed due to the ever increasing demand for higher data rate and Quality of Service (QoS). However, there is an unmanaged ... -
Joint QoS multicast power / admission control and base station assignment: A geometric programming approach
(2008)The joint power control and base station (BS) assignment problem is considered under Quality-of-Service (QoS) constraints. If a feasible solution exists, the problem can be efficiently solved using existing distributed ... -
LAC: Load-aware channel selection in 802.11 WLANs
(2008)Dense deployments of hybrid WLANs result in high levels of interference and low end-user throughput. Many frequency allocation mechanisms for WLANs have been proposed by a large body of previous studies. However, none of ... -
Low-complexity beamforming techniques for IEEE 802.11n WLANs
(2009)The impetus of the present study is to describe a downlink beamforming method that increase spectrum efficiency and significantly reduces implementation complexity and power consumption compare to beamforming technique at ... -
Measuring LTE and WiFi coexistence in Unlicensed spectrum
(2017)The exponential growth in mobile services demand, along with the scarce licensed spectrum in the sub-6GHz bands, mandate the exploitation of bands other than the traditionally used by mobile broadband technologies. An ... -
A modular simulation environment for multiple UAVs with virtual WiFi and sensing capability
(2018)Experiments with real unmanned aerial vehicles (UAVs) need considerable preparation, raise safety concerns, often require official flight permissions by authorities, and can be very costly in case of hardware or software ... -
Multicast transmission over IEEE 802.11n WLAN
(2008)With the advent of low-cost WLAN devices, the delivery of multimedia content is highly desirable. Such applications require high throughput and near-real time for quality viewing. The use of next-generation WLAN 802.11n ... -
New channel allocation techniques for power efficient WiFi networks
(2010)Energy efficiency becomes evergreen than ever before. Over the last few years a significant research in wireless communications, aiming to enhance communications efficiency subject to constraint of power consumption, has ... -
New prioritization schemes for QoS provisioning in 802.11 wireless networks
(2008)Due to the unreliable nature of the wireless medium, provisioning of Quality of Service (QoS) in wireless LANs is far more complicated than in wired networks. In order to address this challenge, IEEE 802.11e defines a ... -
On service time estimation in 802.11 wlans with heterogeneous traffic sources
(2008)This work presents a simple method to estimate IEEE 802.11 Distributed Coordination Function (DCF) service time. This is the total amount of time needed to transmit a given frame, which is defined as the duration from the ... -
On the Employment of Machine Learning Techniques for Troubleshooting WiFi Networks
(2019)The rapidly increasing popularity of 802.11 WLANs along with the co-existence of multiple heterogeneous devices in the unlicensed frequency bands have created unprecedented levels of congestion, especially in densely ... -
An overview of body sensor networks in enabling perva-sive healthcare and assistive environments
(2010)The use of sensor networks for healthcare, well-being, and work-ing in extreme environments has long roots in the engineering sector in medicine and biology community. With the growing needs in ubiquitous communications ... -
Quantifying the overhead due to routing probes in multi-rate WMNs
(2010)The selection of high-throughput routes is a key element towards improving the performance of wireless multihop networks. While several routing metrics have been proposed in the literature, it has been shown that link-quality ...