Research Units: المرسلات الحديثة
السجلات المعروضة 161 -- 180 من 5212
-
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 ... -
Multi-operator collaboration for green cellular networks
( Springer , 2016 , Book chapter)This chapter investigates the collaboration between multiple mobile operators for optimizing energy efficiency in cellular networks. Most of the works in the literature optimize the performance of a given cellular network, ... -
Radio resource management in integrated wired/wireless LTE femtocell networks
( Springer , 2014 , Article)In this paper, radio resource management (RRM) in LTE femtocell networks is investigated in an integrated wired/wireless environment. In such a scenario, femtocell access points (FAPs) are assumed connected via wired links ... -
Next-Generation Environment-Aware Cellular Networks: Modern Green Techniques and Implementation Challenges
( IEEE , 2016 , Article)Over the last decade, mobile communications have been witnessing a noteworthy increase of data traffic demand that is causing an enormous energy consumption in cellular networks. The reduction of their fossil fuel consumption ... -
On the impact of D2D traffic offloading on energy efficiency in green LTE-A HetNets
( John Wiley and Sons Ltd , 2015 , Article)In this paper, the interplay between cooperative device-to-device (D2D) communications and green cellular communications in the long term evolution (LTE) and LTE-advanced (LTE-A) cellular systems is investigated. An efficient ... -
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 ... -
Energy-efficient two-hop LTE resource allocation in high speed trains with moving relays
( IEEE , 2014 , Conference Paper)High-speed railway system equipped with moving relay stations placed on the middle of the ceiling of each train wagon is investigated. The users inside the train are served in two hops via the 3GPP Long Term Evolution (LTE) ... -
On using relays with carrier aggregation for planning 5G networks supporting M2M traffic
( IEEE , 2014 , Conference Paper)In this paper, the joint use of carrier aggregation (CA) and relay stations (RSs) to support machine-to-machine (M2M) traffic in 5G networks is investigated. The focus of the paper is mainly on fixed M2M devices, periodically ... -
Physically separated uplink and downlink transmissions in LTE HetNets based on CoMP concepts
( Institution of Engineering and Technology , 2014 , Conference Paper)In this paper, we present a novel transmission and reception scheme in LTE heterogeneous networks (HetNets) that exploits the concept of Coordinated Multipoint (CoMP). In the proposed scheme, the uplink (UL) and downlink ... -
On the extension of traditional resource allocation algorithms in LTE-A to joint UL-DL scheduling with FDD carrier aggregation
( IEEE , 2014 , Conference Paper)Through and spectral efficiency maximization are two of the most challenging issues to be addressed by current and future cellular networks. To achieve these goals however, radio resources need to be utilized in a coordinated ... -
A practical approach for base station on/off switching in green LTE-A HetNets
( IEEE , 2014 , Conference Paper)This paper describes a method for BS on/off switching in LTE-Advanced (LTE-A). The proposed method uses information exchanged between base stations (BSs) on the X2 interface in order to determine the BSs that should be ... -
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 ... -
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 ... -
Green networking in cellular hetnets: A unified radio resource management framework with base station ON/OFF switching
( IEEE , 2017 , Conference Paper)In this paper, the problem of energy efficiency in cellular heterogeneous networks (HetNets) is investigated using radio resource and power management combined with the base station (BS) ON/OFF switching. The objective is ... -
Optimized LTE cell planning for multiple user density subareas using meta-heuristic algorithms
( IEEE , 2014 , Conference Paper)Base station deployment in cellular networks is one of the most fundamental problems in network design. This paper proposes a novel method for the cell planning problem for the fourth generation 4G-LTE cellular networks ...
