Qatar University Institutional Repository: المرسلات الحديثة
السجلات المعروضة 161 -- 180 من 28749
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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 ... -
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 ... -
Bandwidth and power allocation for two-way relaying in overlay cognitive radio systems
( IEEE , 2014 , Conference Paper)In this paper, the problem of both bandwidth and power allocation for two-way multiple relay systems in overlay cognitive radio (CR) setup is investigated. In the CR overlay mode, primary users (PUs) cooperate with cognitive ... -
On the use of device-to-device communications for QoS and data rate enhancement in LTE public safety networks
( IEEE , 2014 , Conference Paper)In this paper, device-to-device (D2D) communications are investigated in the framework of LTE public safety networks. A clustering approach to enhance the performance of public safety D2D networks is proposed. In each ... -
Empirical evaluation of acoustical signals for leakage detection in underground plastic pipes
( IEEE , 2014 , Conference Paper)In this paper, an empirical evaluation of acoustical signals for leakage detection and quantification in underground plastic pipes for main water distribution networks is presented. Several experiments have been carried ... -
QoE enhancement of SVC video streaming over vehicular networks using cooperative LTE/802.11p communications
( IEEE , 2015 , Article)Real-time streaming of scalable video coded (SVC) videos in vehicular networks is investigated, and novel cooperative vehicle-to-vehicle (V2V) communication methods are proposed. The proposed techniques are based on grouping ... -
Optimized smart grid energy procurement for LTE networks using evolutionary algorithms
( IEEE , 2014 , Article)Energy efficiency aspects in cellular networks can contribute significantly to reducing worldwide greenhouse gas emissions. The base station (BS) sleeping strategy has become a well-known technique to achieve energy savings ... -
Joint Bandwidth and Power Allocation for MIMO Two-Way Relays-Assisted Overlay Cognitive Radio Systems
( IEEE , 2015 , Conference Paper)This paper studies the achievable cognitive sum rate of an overlay cognitive radio (CR) system assisted with multiple antennas two-way relays in which primary users (PUs) cooperate with cognitive users (CUs) for mutual ... -
Green operation of LTE-A femtocell networks benefiting from centralized control
( IEEE , 2015 , Conference Paper)Green operation of a specific category of femtocell networks, where a central controller can control the network within the premises of a campus or building, is investigated. An energy efficient approach for switching off ... -
A game theoretical approach for cooperative environmentally friendly cellular networks powered by the smart grid
( IEEE , 2014 , Conference Paper)This paper investigates the collaboration between multiple mobile operators to optimize the energy efficiency of cellular networks, maximize their profits or achieve or tradeoff between both objectives. Mobile operators ... -
Green Virtualization for Multiple Collaborative Cellular Operators
( IEEE , 2017 , Conference Paper)This paper proposes and investigates a green virtualization framework for infrastructure sharing among multiple cellular operators whose networks are powered by a combination of conventional and renewable sources of energy. ... -
Achieving green LTE-A HetNets with D2D traffic offload and renewable energy powered small cell BSS
( IEEE , 2014 , Conference Paper)Energy aware coordination between mobile devices and the cellular network infrastructure is studied. The objective is to rely on both device-to-device (D2D) communications and any small cell base stations (BSs) that can ... -
Optimized LTE Cell Planning with Varying Spatial and Temporal User Densities
( IEEE , 2016 , Conference Paper)Base station (BS) deployment in cellular networks is one of the fundamental problems in network design. This paper proposes a novel method for the cell planning problem for fourth-generation (4G) cellular networks using ... -
A generic simulation-based dimensioning approach for planning heterogeneous LTE cellular networks
( IEEE , 2014 , Conference Paper)This paper presents a generic approach for dimensioning LTE/LTE-A cellular networks. Dimensioning is the first step of cellular network planning that determines the approximate number of base stations (BSs) needed to cover ... -
On real-time smart meter reading using OFDMA-based random access
( IEEE , 2014 , Conference Paper)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 ... -
A mathematical modeling approach and a novel solution for sector azimuth angle planning
( IEEE , 2014 , Conference Paper)State of the art planning tools rely on intricate simulation models and metaheuristic approaches to determine the optimal azimuth angle of each sector in a system. The process is highly time consuming and the quality of ... -
LTE radio network planning with HetNets: BS placement optimization using simulated annealing
( IEEE , 2014 , Conference Paper)In this paper, the optimization of base station (BS) deployment is investigated. After determining an approximate number of required BSs to cover an area of interest, the positions of these BSs are determined using the ... -
Network QoE metrics for assessing system-level performance of radio resource management algorithms in LTE networks
( IEEE , 2014 , Conference Paper)In this paper, the quality of experience (QoE) of real-time video streaming over long term evolution (LTE) networks is investigated. Network QoE metrics are proposed in order to capture the overall performance of radio ... -
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 ... -
Joint energy-distortion aware algorithms for cooperative video streaming over LTE networks
( Elsevier , 2013 , Article)Real-time video streaming over long-term evolution (LTE) networks is investigated in the presence of mobile-to-mobile collaboration. A multi-objective problem for energy and distortion minimization is formulated and an ...