Browsing by Author "Dawy, Zaher"
Now showing items 1-20 of 34
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A channel-aware reservation protocol for cooperative content distribution over OFDMA networks
( IEEE , 2011 , Conference)In this paper, a channel aware resource reservation protocol for content distribution in an OFDMA wireless network with mobile-to-mobile cooperation is presented. The proposed approach consists of a reservation phase and ... -
A game theoretic framework for energy efficient deployment and operation of heterogeneous LTE networks
( IEEE , 2013 , Conference)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 ... -
A generic simulation-based dimensioning approach for planning heterogeneous LTE cellular networks
( IEEE , 2014 , Conference)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 ... -
A mathematical modeling approach and a novel solution for sector azimuth angle planning
( IEEE , 2014 , Conference)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 ... -
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. ... -
A Nash bargaining solution for energy-efficient content distribution over wireless networks with mobile-to-mobile cooperation
( IEEE , 2011 , Conference)A game theoretical formulation for energy minimization in mobile-to-mobile cooperative networks is provided. The problem is formulated as a Nash bargaining game, and the Nash bargaining solution is derived. Furthermore, a ... -
A novel distributed scheduling scheme for OFDMA uplink using channel information and probabilistic transmission
( Elsevier , 2011 , Article)Distributed uplink scheduling in OFDMA systems is considered. In the proposed model, mobile terminals have the responsibility of making their own transmission decisions. The proposed scheme is based on two dimensional ... -
A survey on uplink resource allocation in OFDMA wireless networks
( IEEE , 2012 , Article Review)OFDMA has been selected as the multiple access scheme for state-of-the-art wireless communication systems. Efficient resource allocation in OFDMA wireless networks is essential in order to meet the quality of service ... -
A utility minimization approach for energy-aware cooperative content distribution with fairness constraints
( Associazione Elettrotecnica ed Elettronica Italiana , 2012 , Article)Cooperation between mobile terminals (MTs) with the objective of energy minimization is studied. The purpose is to distribute a content of common interest to collaborating MTs while ensuring a reduced energy consumption. ... -
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 ... -
Energy Efficient Fair Content Distribution over LTE Networks using Bluetooth Piconets
( QU Wireless Innovations Center (QUWIC) , 2011 , Conference)Energy efficient content distribution with mobileto-mobile cooperation is considered. The distribution method is based on long range transmission from a base station and on short range cooperation between mobile terminals. ... -
Energy-aware cooperative content distribution over wireless networks: Design alternatives and implementation aspects
( IEEE , 2013 , Article)This paper presents a comprehensive overview on the area of energy-aware common content distribution over wireless networks with mobile-to-mobile cooperation. It is assumed that a number of mobile terminals (MTs) that are ... -
Enhancing the performance of OFDMA underlay cognitive radio networks via secondary pattern nulling and primary beam steering
( IEEE , 2011 , Conference)Cognitive radio networks are receiving a lot of research attention lately. Most user equipment in state-of-the-art wireless communication systems are equipped with two antennas. In this paper, we take advantage of the two ... -
Exploiting multiple wireless interfaces in smartphones for traffic offloading
( IEEE , 2013 , Conference)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 ... -
Fair optimization of video streaming quality of experience in LTE networks using distributed antenna systems and radio resource management
( John Wiley and Sons Ltd , 2014 , Article)Network quality of experience (QoE) metrics are proposed in order to capture the overall performance of radio resource management (RRM) algorithms in terms of video quality perceived by the end users. Metrics corresponding ... -
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 ... -
LTE BS placement optimization using simulated annealing in the presence of femtocells
( VDE VERLAG GMBH , 2014 , Conference)In this paper, we address the phase of radio network planning and optimization (RNPO) related to base station (BS) deployment in the presence of femtocell access points (FAPs). After determining an approximate number of ... -
LTE radio network planning with HetNets: BS placement optimization using simulated annealing
( IEEE , 2014 , Conference)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)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 ... -
Novel time-frequency reservation Aloha scheme for OFDMA systems
( IEEE , 2011 , Conference)A novel reservation Aloha scheme is presented for OFDMA systems. The proposed scheme is based on two dimensional reservation in time and frequency. The proposed approach is compared to other OFDMA extensions of reservation ...
