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This work presents two-rank (Wi-Fi and LTE) analytical model, from which we can evaluate the goodput of vehicular wireless network depending on the number of vehicles N in the access point (AP) coverage area. To evaluate the suitability of the model used, experimental data are compared with the theoretically calculated data. The results obtained allow us to evaluate the performance of each individual...
The vertical handover is an important issue in the world of internet. In fact, the use of internet is becoming wider with the diversity of possible offered services, going from emailing, Data and video transfers, to IoT. The number of internet users has reached multimillions of people these last two decades, in addition, they are willing to connect wirelessly anytime and anywhere, to the best available...
To alleviate the pressure brought by the explosion of mobile video traffic on present cellular networks, small cell base stations (SBS) with caching ability are introduced. In this paper, we consider the caching strategy using network coding for mobile users over heterogeneous wireless network containing SBSs. We formulate an integer programming problem to minimize the average number of packets downloaded...
We investigate the impact of mobility on energy consumption in mobile Ad hoc networks in this paper. Considering a cell-partitioned model of a delay-tolerant mobile ad hoc network with Markovian mobility, we focus on that the communication only occurs in the same cell or the adjacent cell. In this model, we characterize the mobility which have an influence on energy consumption as the nodes' maximum...
In this work we investigate the performance of Ad-hoc on-demand distance vector routing (AODV), Dynamic source routing (DSR), Temporary ordered routing (TORA), Optimized link state routing (OLSR) and Geographic routing (GRP) protocols in wireless ad-hoc networks by using OPNET simulation program. In ad-hoc networks consisting of fixed and mobile stations, routing protocols are compared for different...
Wireless networks have gone through several years of evolution until now and will continue to do so in order to cater for the varying needs of users. These demands are expected to grow in the future, both in size and variability. Hence, the 5G technology considers these variabilities in service demands and potential data explosion which could accompany users' demands at the core of its architecture...
The utilisation of smart antenna (SA) techniques in future wireless and cellular networks is expected to have an impact on the efficient use of the spectrum and the optimization of service quality. This is because SAs can enhance the maximization of output power of the signal in desired directions amongst a whole lot of functions. In spite of these benefits of SAs, long range communications still...
Mobile devices supported by mobile ad-hoc network (MANET) make possible communication and coordination among mobile devices during emergency situation. In this paper, we develop a prototype of Android-based application that work using MANET. The prototype has purpose to provide communication and information required for search and rescue operations for emergency scenarios. There are several emergency...
A Mobile Patient Monitoring System (MPMS) acquires patient's biosignals and transmits them using wireless network connection to the decision making module or healthcare professional for the assessment of patient's condition. An important research challenge in the MPMS is how to satisfy Quality of Service (QoS) requirements of biosignals delivery in the environment characterized by patient mobility,...
Today's internet has witnessed a fast growth of mobile video streaming. Different from traditional PC/laptop-based video streaming, mobile video streaming relies on the usage of mobile devices and wireless networks, allowing people to receive video content on the move. The change has challenged traditional video content delivery, which uses centralized infrastructure (e.g., CDN) inside the network...
The Internet is increasingly considered an essential and integral part of people's lives. With its massification and the constant increase of the bandwidth offered to the consumers, services like Over-The-Top (OTT) have grown in recent years - e.g. YouTube and Netflix. OTT services refer to the delivery of audio, video and other data over the Internet without network operators' control. This trend...
Device-to-Device (D2D) communication has drawn great interest in academia and industries due to the extended network coverage and reduction of the restrictions of traditional cellular systems. On the other hand, a new paradigm called content-centric networking (CCN) has been proposed for scalable, flexible, and secure services in the future networks. With CCN, it is possible to increase the throughput...
Named Data Networking (NDN) is a future Internet architecture suitable for Vehicular Ad Hoc Networks (VANETs), since it provides solutions to frequent topology changes in VANETs. In NDN messages are exchanged according to their content and not to the location of the hosts. SDN provides centralized network control. This paper presents use cases for vehicular NDN scenarios, where SDN is a suitable solution...
With the proliferation of smart mobile devices (smart phone, tablet, and wearable), mobile crowdsensing becomes a powerful sensing and computation paradigm. It has been put into application in many fields, such as spectrum sensing, environmental monitoring, healthcare, and so on. Driven by promising incentives, the power of the crowd grants crowdsensing an advantage in mobilizing users who perform...
WiFi networks are vulnerable to rogue AP attacks in which an attacker sets up an imposter AP to lure mobile users to connect. The attacker can eavesdrop on the communication, severely threatening users' privacy. Existing rogue AP detection solutions are confined to some specific attack scenarios (e.g., by relaying the traffic to a target AP) or require additional hardware. In this paper, we propose...
The advancements of Information and Communications Technologies (ICT) have contributed to an explosive growth of high-volume, high-velocity and high-variety information assets, and the era of Big Data has emerged. The infrastructure-based networks are becoming increasingly overloaded, while the cost of maintaining and expanding the infrastructure to accommodate the Big Data communications remains...
In this paper, a novel multi-bit simultaneous query technique, called the Coherent Analog Bloom Filter (CABF), is proposed for wireless networks. CABF allows the Access Point (AP) of the network to gather multiple bits of key information from nodes in the network simultaneously, such as the identities of the active nodes and the data packet sizes. With CABF, the nodes transmit signals on selected...
Classical control and management plane for computer networks is addressing individual parameters of protocol layers within an individual wireless network device. We argue that this is not sufficient in phase of increasing deployment of highly re-configurable systems, as well as heterogeneous wireless devices co-existing in the same radio spectrum. They demand harmonized, frequently even coordinated...
The presence of obstacles between a mobile user and the serving access point might determine frequent link blockages that could be expensive in terms of signaling caused by handovers and antenna beamforming, especially in the perspective of millimeter wave communications. In this paper, an analytical framework to characterize the statistics of the link lifetime of a moving user in the presence of...
To provide better usage of spectrum, regulators, such as the FCC and Ofcom, have been considering how to share spectrum between operators and also between different types of network. Two important aspects of any mobile service that need to be considered are how to ensure the appropriate level of service to individual users and how to minimize power consumption. This paper addresses the issue by applying...
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