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Machine-to-machine (M2M) applications are expected to be the main traffic contributors through the Internet of Things (IoT) paradigm. One of the most prevalent communication access technologies is Wi-Fi. While open Wi-Fi hotspots can be easily used by M2M communications of static or mobile devices, this is not the case for private Wi-Fi installations that are normally secured against unauthorized...
Enabling an acceptable QoS provision for realtime services is constrained by the lack of radio resources availability and the load network. To overcome this issue, an efficient admission control must be applied to provide user's QoS expectation while respecting the resource availability constraint. We propose in this paper different admission control strategies aiming at simultaneously improving the...
In MANETs, real-time multimedia applications make Quality of Service (QoS) support, a crucial issue regarding terms of increased throughput, reduced jitter and available bandwidth. The highly dynamic topology of the network, large variation of received signal strength at nodes and frequently varying link characteristics make QoS provisioning, a challenging task. Most of the existing routing protocols...
In this work we implement features for IEEE 802.11ac in the NS-3 simulator, in particular wider channels and bit-error calculations for higher modulation coding schemes. We also implement four wireless LAN deployment scenarios from the 802.11ax working group scenario document, and evaluate their performance under different operating conditions. Our simulation results demonstrate that many nodes in...
In the Wireless Multimedia Sensor Networks (WM-SNs) field, real-time multimedia flow increases the probability of collision and congestion in sensor network which degrade the performance of Quality of Service (QoS). How to meet the high QoS requirement of WMSNs applications under the condition of energy constraint is a crucial issue. In this paper, we propose a predicted available bandwidth estimation...
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