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QoS of applications in an edge node of mobile edge computing (MEC) could degrade due to congestion of wireless access or short of mobile edge computing resource. In order to improve QoS such as TCP throughput, we propose a VM migration method, which takes a VM from congested node to another node in a mobile edge. Users can choose a far but less-congested node, instead of a near but congested node...
Today many applications require a high Quality of Service (QoS) to the network, especially for real time applications like VoIP services, video/audio conferences, video surveillance, high definition video transmission, etc. Besides, there are many application scenarios for which it is essential to guarantee high QoS in high speed mobility context using an Internet Mobile access. However, internet...
Heterogeneous cloud radio access network (H-CRAN) is proposed as a cost-effective paradigm to meet the ever-increasing mobile data traffic demand, where the key idea is applying cloud computing technologies in a heterogeneous network (HetNet) to improve both spectral and energy efficiencies of the cellular system. In this paper, we investigate how to provide as many as possible users with QoS-guaranteed...
Delivering committed traffic Quality of Service (QoS) per Service Level Agreement (SLA) requires support of critical intelligent traffic management features in LTE eNodeB (and future 5G access nodes), such as Uplink Traffic Shaping and Congestion and Admission Control (CAC). This paper highlights the motivation and merits of uplink traffic shaping in preserving QoS levels per traffic categories over...
The Heterogeneous Wireless Network is a hierarchical structure of different wireless networks. The wireless networks are differ in terms of network coverage, capacity, bandwidth, technology and network operator. In such an environment when a mobile terminal equipped with multiple network interfaces leaves one wireless network and connect to another different wireless network, a Vertical Handoff (VHO)...
The incremental needs of the wireless technologies came from the rapid proliferation of the mobile devices, which become one of the life necessities for people. The clear growth in the mobile application markets either in video, audio, or web surfing and with all the innovations and inventions in the technologies, the needs of using the wireless heterogenous networks become a fact. In this paper,...
The necessity for a network to provide wireless multimedia services in various levels of quality of service (QoS) with maximizing the utilization of spectral resources. By joint relaying and relay selection we can allocate resources with adaptive resource scheduling. The enhanced coverage and capacity is achieved with the help of small cell deployment. The proposed joint relaying and scheduling strategy...
Android is an operating system which is available in smartphones and tablets. It uses touch gestures which correlate as activities to perform the operations to embed with the real world actions. Recent technologies adapts android as the primary element because of its salient features and open environment which could be customized in high technological devices. Another secured feature of Android is...
This paper introduces new functionalities for industrial safety applications using the wireless infrastructure of the IEEE 802.11 standard. The new amendments (n/ac/ad) for the 2.4, 5, and 60-GHz-band support additional high data rate modes, for e.g. video applications and device-to-device (D2D) communication. The huge bandwidth in the 60-GHz-band enables precise localization. However, Listen-Before-Talk...
Demand for broadband wireless access is rising as the need for user mobility and data access at all times increases. WiMAX also called IEEE 802.16 provides various Quality of Service (QoS) support at medium access control (MAC) layer to various classes of traffics such as audio, video, images and text. Scheduling plays an important role in providing QoS. IEEE 802.16 standard has not specified a standard...
This paper investigates spectrum-power trading between a small cell (SC) and a macro-cell (MC), where the SC consumes power to serve the macro-cell users (MUs) in exchange for some bandwidth from the MC. Our goal is to maximize the system energy efficiency (EE) of the SC while guaranteeing the quality of service (QoS) of each MU as well as small cell users(SUs). Specifically, given the minimum data...
In the present day wireless communication networks, the main objective is to support different multimedia services with various requirements of Quality of Services and varying bandwidth requirements. The key role in effective resource management of WiMAX network is to enhance the performance of network. Gateway (GW) relocation of Access Service Network (ASN) includes changing the Anchor Point (AP)...
Wireless communication networks are expanding with the deployment of small cell networks. Energy efficiency becomes a crucial system design parameter in such systems. One approach to increase the energy efficiency is to allocate radio resources in efficient manner. This is done by developing a QoS based optimization framework for Joint bandwidth and power allocation. Energy efficiency in such systems...
Supporting multimedia applications with quality of service (QoS) requirements is one of the challenge goals in a wireless communication system. The third generation (3G) standards employ orthogonal variable spreading factor-wideband code division multiple access (OVSF-WCDMA) technologies which flexibly support mixed and variable data rate services. The orthogonal property of OVSF codes leads to code...
Recently, mobile video streaming services become very popular. MPEG-DASH is one of the streaming schemes used for the service. In this method, a mobile terminal tries to download video chunks from a streaming server by estimating the available bandwidth of the underlying network. However, it is very difficult to estimate the available bandwidth because this method is working as an OTT (over the top)...
Video streaming provided by Over-The-Top (OTT) service providers through a cellular network is a common usage scenario for many people today. While video streaming will work reasonably well in a stationary scenario, several issues arise for mobile users. For instance, travelling through short areas without cellular coverage, such as an automobile tunnel, will often result in quality degradation or...
Nowadays mobile video streaming services become very popular. However, due to the drastic bandwidth fluctuation in a mobile network, the quality of the mobile video streaming degrades significantly. Above all, mobile users are not happy when video image freezes for a few seconds/minutes. Most of current video streaming services are working as an OTT (over the top) service, which means a mobile network...
A power and bandwidth efficient resource allocation approach considering consumer's Quality of Experience (QoE) in the context of mobile video streaming is presented. Online QoE is estimated using Fuzzy Inference Systems. Compared to Quality of Service (QoS)-based techniques, the proposed QoE-enabled approach offers considerable saving in bandwidth and power.
In this paper we propose a multi-agent based proactive service replication scheme for service oriented computing in mobile ad hoc environment. The proposed scheme ensures service availability and optimum resource usage in the network without compromising the QoS requirement of the service consumers. To achieve this we formalize the service-replication problem into distributed constraint optimization...
The evolution of Internet access technologies, together with the wide diversity of customer devices, has led to a complex scenario where measuring basic metrics with accuracy has become a rather complicated task. Although nowadays there are a lot of tools to assess the rate of Internet speed, most of them share neither the methodology nor the infrastructure to produce comparable results. In this regard,...
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