Qatar Mobility Innovations Center: Recent submissions
Now showing items 221-240 of 278
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Delay-sensitive content distribution via peer-to-peer collaboration in public safety vehicular ad-hoc networks
( Elsevier , 2014 , Article)Delay-sensitive content distribution with peer-to-peer (P2P) cooperation in public safety vehicular networks is investigated. Two cooperative schemes are presented and analyzed. The first scheme is based on unicasting from ... -
Mobile relays for enhanced broadband connectivity in high speed train systems
( Elsevier , 2014 , Article)With the introduction of wireless modems and smart phones, the passenger transport industry is witnessing a high demand to ensure not only the safety of the trains, but also to provide users with Internet access all the ... -
Automatic meter reading in the smart grid using contention based random access over the free cellular spectrum
( Elsevier , 2014 , Article)Real-time transmission of smart meter measurement data is investigated. A contention based approach exploiting the unused cellular spectrum, e.g. of 4G Long Term Evolution (LTE), is proposed. The proposed approach uses ... -
Opportunistic cooperation for infrastructure-to-relaying-vehicles over LTE-A networks
( IEEE , 2013 , Conference)We extend vehicular cooperation into downlink LTE-A networks in what we call Infrastructure-to-Relaying-Vehicles (I2RV) cooperation. In I2RV, vehicles are used as relaying terminals between eNodeB/BS and a receiving user ... -
An advanced bandwidth adaptation mechanism for LTE systems
( IEEE , 2013 , Conference)In this paper, we propose a bandwidth adaptation mechanism for 3GPP LTE which partially releases bearers' resources for admission of a new bearer during congestion periods. Each active bearer may contribute into the ... -
Security of cooperative intelligent transport systems: Standards, threats analysis and cryptographic countermeasures
( MDPI , 2015 , Article)Due to the growing number of vehicles on the roads worldwide, road traffic accidents are currently recognized as a major public safety problem. In this context, connected vehicles are considered as the key enabling technology ... -
Realistic simulation for body area and body-to-body networks
( MDPI , 2016 , Article)In this paper, we present an accurate and realistic simulation for body area networks (BAN) and body-to-body networks (BBN) using deterministic and semi-deterministic approaches. First, in the semi-deterministic approach, ... -
Security in intelligent transport systems for smart cities: From theory to practice
( MDPI , 2016 , Article)Connecting vehicles securely and reliably is pivotal to the implementation of next generation ITS applications of smart cities. With continuously growing security threats, vehicles could be exposed to a number of service ... -
QoS-Aware Video Transmission over Hybrid Wireless Network for Connected Vehicles
( IEEE , 2017 , Article)Communication between vehicles enables a wide array of applications and services ranging from road safety to traffic management and infotainment. Each application places distinct quality of service (QoS) constraints on the ... -
Enhanced IoT-based end-to-end emergency and disaster relief system
( MDPI , 2017 , Article)In this paper, we present a new enhancement for an emergency and disaster relief system called Critical and Rescue Operations using Wearable Wireless sensors networks (CROW2). We address the reliability challenges in setting ... -
Research trends in multi-standard device-to-device communication in wearable wireless networks
( Springer Verlag , 2015 , Conference)Wearable Wireless Networks (WWN) aim to provide attractive alternate for conventional medical care system. It is an effective way of monitoring patients within clinics, hospitals and remotely from home, offices etc. In ... -
Efficient Distributed Admission and Revocation Using Blockchain for Cooperative ITS
( IEEE , 2018 , Conference)Cooperative Intelligent Transportation System (C- ITS) enables inter-networking of vehicles for alerts exchanging in order to improve road safety. While this technology is about to enter the market in the upcoming years, ... -
A novel Cloudlet-based communication framework for resource-constrained devices
( Association for Computing Machinery , 2018 , Conference)In this paper, we present a new emerging technology for building mobility-enhanced and small-scaled mobile to cloud applications called Cloudlet. We address the reliability challenges in affording a powerful computing ... -
Energy-efficient Device-to-Device communications in LTE public safety networks
( IEEE , 2012 , Conference)Device-to-Device communications are studied in the framework of LTE public safety networks. We propose a model where devices cooperate on the short range by forming coalitions for the purpose of energy efficiency. In each ... -
Spatial opportunistic transmission for Quality of Experience satisfaction
( Elsevier , 2014 , Article)The capability of Multiple Input Multiple Output (MIMO) to deliver service simultaneously to more than one user is an exceptional characteristic for the cognitive radio (CR) communication. In this paper, statistical ... -
Enhancing mobile video streaming by lookahead rate allocation in wireless networks
( IEEE Computer Society , 2014 , Conference)Developing novel video delivery mechanisms have become imperative to cope with the unprecedented growth in mobile video traffic. In this paper, we present video transmission schemes that improve the streaming experience ... -
A modified joint uplink-downlink opportunistic scheduling for Quality of Service guarantees
( IEEE , 2013 , Conference)Quality of Service (QoS) is a very important metric in wireless communication systems, where both Uplink (UL) and Downlink (DL) connections request strict QoS demands in terms of rate, delay, etc. for their proper operation. ... -
Long-term fairness in multi-cell networks using rate predictions
( IEEE , 2013 , Conference)Providing fair service to users in cellular networks is of significant importance to mobile operators. However, the geographic variability of network coverage and irregularity of user demand in space and time has made ... -
Green operation techniques for large scale deployments of small cell LTE networks
( IEEE , 2013 , Conference)This paper investigates the large scale deployment of LTE small cell/femtocell networks. The interplay between the different small cell base stations (BSs) is studied in order to achieve the best user performance taking ... -
Distributed antenna systems for enhanced video transmission in LTE public safety networks
( IGI Global , 2013 , Book chapter)In this chapter, Long Term Evolution (LTE) for public safety is investigated. Particularly, Distributed Antenna Systems (DAS) are studied, and their impact on LTE public safety networks is analyzed. Furthermore, resource ...
