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A novel mobility-aware and energy-efficient coded caching provisioning strategy, Mobee, is proposed for a Cloud Radio Access Network (C-RAN). The placement of the Maximum-Distance Separable (MDS) encoded content at the Base Stations (BSs) is optimized to minimize the total energy consumption of the network comprising the transport and the caching energy consumptions. To account for user mobility,...
In wireless coded cache network, data contents are cached in a number of mobile devices using an erasure correcting code, and a user retrieves content from other mobile devices using device-to-device communication. In this paper, we consider the repair problem when multiple devices that cache data contents fail or leave the network. By exploiting the wireless broadcast nature, we formulate the repair...
High fluctuation of signal strength is evident in wireless channel under mobile environment. IEEE 802.11n and IEEE 802.11ac based wireless technologies experience a challenge for selecting link configuration parameters, like number of spatial streams, channel bonding, advanced modulation and coding schemes, frame aggregation etc., dynamically under mobility. Selection of the best possible data rate...
Innovations in technology that have enabled efficient wireless tiny devices propelled the concept of Internet of Things. It is expected that mobile data traffic will experience 8-fold growth between 2015 and 2020 and the number of mobile connected devices will reach 11.6 billion by 2020. Main factors of this exponential growth and wide acceptance are the integration of several technologies and communications...
In current wireless cellular networks, generally a mobile station is able to acquire its position through diverse positioning techniques. Incorporating position and communication will improve the wireless system performance. In this paper, we propose position based power control and mode handover methods for hybrid wireless cellular and D2D (Device-to-Device) communications. Each mobile station passes...
Future mobility management systems need to in-corporate innovative methods to improve mobile multimedia networking, such as quality-oriented decision-making functions for selecting the best Point of Attachment (PoA) for in-transit Moving Objects (MOs). Among the various correlating algorithms raised in the literature, solutions based on the Multiple Attribute Decision Making (MADM) are beneficial...
Recent advances in technology propelled the development of resource constrained tiny devices and the concept of Internet of Things (IoT). Potential applications spanning various fields of science from environmental to medical have been emerged. Different architectures, routing protocols, performance issues and goals have been suggested. In this work, we review fundamental concepts, recent developments...
This paper describes a new implementation of the Elastic Multicast (EM) protocol including new design enhancements for improved dynamic operation. The paper also presents additional performance data collected from emulation-based mobile network experiments. EM is a low complexity extension to Simplified Multicast Forwarding (SMF) that adds group-specific dynamic pruning of the SMF-based multicast...
A wireless Body Sensor Network (WBSN) with ECG android monitor is presented that is capable of monitoring and displaying the ECG waveform and Heart Rate of an individual in real-time. The system uses the Wi-Fi 802.11 standard for wireless transmission of the data to an Android based mobile phone. The developed android smart-phone application displays the ECG information as well as the heart rate and...
To satisfy the requirement of increasing mobile traffic, heterogeneous networks (HetNets) will be deployed for the fifth generation (5G) mobile communications systems. Since the deployment of base stations (BSs) in HetNets is generally dense and random, stochastic geometry has increasingly been used to analyze the performance of HetNets. Most of the existing work is based on Poisson point processes...
In recent years, video streaming traffic has increased exponentially over the Internet. This can be observed through the emergence of various video on demand sites such as Netflix, Amazon movies and others. In parallel, IEEE 802.11 (WiFi) technology has been deployed extensively from home to public areas. Although significant research has been done to address issues on video streaming through WiFi...
Security and privacy of mobile users is a theme of primary importance, given the widespread and growing use of connected smartphones, the great amount of personal data that can leak, and the lack of proper controlled environments in the current mobile scenario (for instance, mobile apps and their handling of permissions). In this paper we focus on a crucial part of this scenario: usage of mobile phone...
Wireless Mesh Network (WMN) is an upcoming technology that supplements wired infrastructure with wireless backbone to provide Internet connectivity to mobile nodes (MN) or users in residential areas and offices. Here the each wireless backbone node operates both as a wireless router that forwards packets of other nodes & as a wireless bridge transmitting the packets of its clients WMN has the...
In a mobile campus, the information and services related to location are really needed. Because satellite positioning systems can't afford locational requirement in bad outdoor scenario and indoor situation, the method of cooperative positioning provided another way to solve this problem. Aimed at the problem in which the unknown nodes in outdoor get a poor localizability for linking less sufficient...
In this paper, we propose two novel fiber-optic relaying schemes, one using SM technology and another using STBC and MRC diversity reception technologies, for MIMO mobile transmission. Using single RoF link to relay MIMO signals, the proposed schemes have much lower system complexity and cost than the conventional RoF relaying system. Computer simulation confirmed that the proposed SM-RoF scheme has...
This paper mainly focuses on developing a joint cloud and wireless resource allocation algorithm based on evolutionary game (JRA-EG) considering mobile terminals' energy consumption and time delay as well as monetary cost in mobile edge computing environment. The mobile terminals (MTs) in different service areas form different populations. In addition, the competition among populations of MTs in different...
The widespread use of mobile devices has led to the continuous innovation of information service technology. This paper analyzes the problems of service implementation in the absence of infrastructure, and proposes a service optimization solution in wireless mobile network environment, which is designed from three levels of service deployment service framework and service optimization, and effectively...
Mobile Broadband (MBB) access networks are becoming more and more used worldwide, and the devices adopted to access them are increasing in number and complexity (smart-phones, mobile hotspots, vehicular infotainment systems). The highly dynamic nature of such scenarios calls for continuous monitoring and measurement of the network. To this aim, the Available Bandwidth is a performance metric of the...
Frequency-selective exposimeters were used to evaluate stationary and mobile components of exposure to radiofrequency electromagnetic radiation in the public accessible environment, with respect to the location in the urban area and intensity of mobile communication traffic. It was found that in the crowded public space the uplink mobile component of exposure and wide-band internet access may be at...
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