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السجلات المعروضة 1 -- 20 من 219
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Air quality monitoring and prediction system using machine-to-machine platform
(2012 , Conference Paper)This paper presents an ambient air quality monitoring and prediction system. The system consists of several distributed monitoring stations that communicate wirelessly to a backend server using machine-to-machine communication ... -
Enhancing the QoS of real-time video streaming over LTE MBMS using D2D communications
( Association for Computing Machinery , 2012 , Conference Paper)Real-time video streaming over LTE multicast and broadcast multimedia services (MBMS) is investigated. The impact of device-to-device (D2D) communications in enhancing the quality of service (QoS) and reducing energy ... -
An energy-efficient M2M communication method for leakage detection in underground water pipes
( Association for Computing Machinery , 2012 , Conference Paper)An application of machine-to-machine (M2M) communication for leakage detection in underground water infrastructures is considered. A mobile sensor immersed in the water pipe is assumed to communicate with relay nodes on ... -
A genetic algorithm solution for the operation of green LTE networks with energy and environment considerations
( Springer , 2012 , Conference Paper)The Base Station (BS) sleeping strategy has become a well-known technique to achieve energy savings in cellular networks by switching off redundant BSs mainly for lightly loaded networks. Besides, the exploitation of ... -
Cooperative wireless sensor networks for green internet of things
( Association for Computing Machinery , 2012 , Conference Paper)Green internet of things are investigated by studying energy efficiency in wireless sensor networks. A cooperative multihop data transmission approach is presented and analyzed. Significant energy savings are achieved with ... -
Optimized green operation of LTE networks in the presence of multiple electricity providers
( IEEE , 2012 , Conference Paper)Energy efficiency aspects in cellular networks can significantly contribute to the reduction of greenhouse gas emissions and help to save the environment. The base station (BS) sleeping strategy has become a well-known ... -
Heterogeneous LTE/802.11a mobile relays for data rate enhancement and energy-efficiency in high speed trains
( IEEE , 2012 , Conference Paper)Performance enhancements of cellular networks for passengers in high speed railway systems are investigated. Relays placed on top of each train car are proposed. These relays communicate with the cellular base station (BS) ... -
Cooperative ad hoc networks for energy and delay efficient content distribution with fast channel variations
( John Wiley and Sons Ltd , 2012 , Article)Cooperative ad hoc networks for the efficient distribution of content of common interest are studied in the case of fast channel variations. Mobiles are grouped into cooperative clusters for the purpose of receiving the ... -
Resource allocation with interference mitigation in femtocellular networks
( John Wiley & Sons, Ltd. , 2012 , Article)The introduction of femtocells enabled high data rates and better indoor coverage without the need for expanding or increasing the density of cellular networks deployment or upgrading the cellular network infrastructure. ... -
Energy-efficient Device-to-Device communications in LTE public safety networks
( IEEE , 2012 , Conference Paper)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 ... -
Planning future cellular networks: A generic framework for performance quantification
( VDE VERLAG GMBH , 2013 , Conference Paper)The new pressing expectations from emerging cellular systems such as energy efficiency, heterogeneity of cell sizes and base station types, focus shift to capacity from coverage, and demand for homogeneity of service ... -
Exploiting multiple wireless interfaces in smartphones for traffic offloading
( IEEE , 2013 , Conference Paper)Smartphones are evolving at a fast rate in terms of their computational, storage, and communications capabilities. A high-end smartphone is equipped with multiple wireless interfaces with varying bit rates, energy consumption ... -
A game theoretic framework for energy efficient deployment and operation of heterogeneous LTE networks
( IEEE , 2013 , Conference Paper)In this paper, a game theoretical framework for energy efficient operation of heterogeneous LTE cellular networks is proposed. Within this framework, two game theoretic concepts are studied and analyzed. The first approach ... -
Performance of green LTE networks powered by the smart grid with time varying user density
( IEEE , 2013 , Conference Paper)In this study, we implement a green heuristic algorithm involving the base station sleeping strategy that aims to ensure energy saving for the radio access network of the 4GLTE (Fourth Generation Long Term Evolution) mobile ... -
On the capacity and spatial fairness trade-off in planning sectorization and frequency reuse
( IEEE , 2013 , Conference Paper)The intrinsic trade-off between the capacity and Quality of Service (QoS) has long been subject of investigation in the design of MAC layer scheduling, power and call admission control mechanisms. However, from prospective ... -
Achieving energy efficiency in LTE with joint D2D communications and green networking techniques
( IEEE , 2013 , Conference Paper)In this paper, the joint operation of cooperative device-to-device (D2D) communications and green cellular communications is investigated. An efficient approach for grouping mobile terminals (MTs) into cooperative clusters ... -
Enhanced connectivity in railroad networks using LTE relays with directive antennas
( IEEE , 2013 , Conference Paper)Performance enhancements of cellular networks for passengers in high speed railway systems are investigated. Relays placed on top of each train car are proposed. These relays communicate with the mobile terminals (MTs) ... -
Wireless sensor network for real-time air pollution monitoring
( IEEE , 2013 , Conference Paper)This paper presents an ambient real-time air quality monitoring system. The system consists of several distributed monitoring stations that communicate wirelessly with a backend server using machine-to-machine communication. ... -
SVC video streaming over cooperative LTE/802.11p vehicle-to-infrastructure communications
( IEEE , 2013 , Conference Paper)Collaborative techniques for real-time video streaming of scalable video coded (SVC) videos over vehicle to infrastructure (V2I) communications are investigated. In the studied methods, roadside units (RSUs) communicate ... -
Air quality monitoring and analysis in Qatar using a wireless sensor network deployment
( IEEE , 2013 , Conference Paper)In this paper, an actual deployment of a wireless sensor network is described. The purpose of the sensor network is to monitor and analyze air quality in Doha. Small scale wireless sensor stations communicate with a backend ...
