Mohamad Khattar Awad

Mohamad Khattar Awad
Kuwait University | KU

Doctor of Philosophy

About

45
Publications
8,462
Reads
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890
Citations
Introduction
Dr. Awad, earned the B.A.Sc. in electrical and computer engineering (communications option) from the University of Windsor, Ontario, Canada, in 2004 and the M.A.Sc. and Ph.D. in electrical and computer engineering from the University of Waterloo, Ontario, Canada, in 2006 and 2009, respectively. Since 2012, he has been with Kuwait University as an Assistant Professor of Computer Engineering. Dr. Awad's research interest includes wireless and wired communications, software-de ned networks resource allocation, wireless networks resource allocation, and acoustic vector-sensor signal processing. Dr. Awad serves on the editorial board of the IEEE Transactions on Green Communications and Networking (TGCN).
Additional affiliations
August 2013 - present
Kuwait University
Position
  • Professor (Assistant)
September 2009 - August 2013
American University of Kuwait
Position
  • Professor (Assistant)
Education
September 2007 - August 2013
University of Waterloo
Field of study
  • Education
September 2006 - August 2009
University of Waterloo
Field of study
  • Electrical and Computer Engineering
September 2004 - August 2006
University of Waterloo
Field of study
  • Electrical and Computer Engineering

Publications

Publications (45)
Article
This paper investigates the resource allocation problem in non-orthogonal multiple-access (NOMA) cellular networks underlaid with OMA-based device-to-device (D2D) communication. This network architecture enjoys the intrinsic features of NOMA and D2D communications; namely, spectral efficiency, massive connectivity, and low-latency. Despite these in...
Article
The demand for high capacity network services with stringent quality of service requirements is at a rapidly accelerating rate due to the exponential rise in the numbers of mobile-connected devices. This demand has motivated the use of the heterogeneous network (HetNet) architectures. However, even though small-cell base-stations have relatively lo...
Article
Full-text available
Network softwarization has recently been enabled via the software-defined networking (SDN) paradigm, which separates the data plane from control plane allowing for a flexible and centralized control of networks. This separation facilitates implementation of machine learning techniques for network management and optimization. In this work, a machine...
Article
Joint transmission coordinated multi-point (JT-CoMP) and non-orthogonal multiple access (NOMA) are key enabling technologies of 5G ubiquitous broadband infrastructures. These technologies are jointly expected to exploit multi-cell and non-orthogonal resource transmissions; thus, conventional resource allocation schemes that only consider either one...
Article
Heterogeneous networks (HetNets) have been widely accepted as a promising architecture to fulfill the ever-increasing demand for capacity expansion. However, the energy consumed by the dense underlay of the large number of micro base stations that is required to achieve capacity expansion, exacerbates the energy inefficiency of cellular networks. H...
Conference Paper
Full-text available
This paper considers the problem of joint subcarrier assignment and global energy-efficient power allocation (J-SA-GEE-PA) for energy-harvesting (EH) two-tier downlink non-orthogonal multiple-access (NOMA)-based heterogeneous networks (HetNets). Particularly, the HetNet consists of a macro base-station (MBS) and a number of small base-stations (SBS...
Article
Full-text available
In this paper, the problem of joint node selection, flow routing, and cell coverage optimization in energy-constrained wireless sensor networks (WSNs) is considered. Due to the energy constraints on network nodes, maximizing network sum-rate under target network lifetime, flow routing, cell coverage, and minimum rate constraints is of paramount imp...
Article
Full-text available
In this paper, the problem of joint subcarrier assignment and global energy-efficient power allocation (J-SA-GEE-PA) for energy-harvesting (EH) two-tier downlink non-orthogonal multiple-access (NOMA) heterogeneous networks (HetNets) is considered. Particularly, the HetNet consists of a macro base-station (MBS) and a number of small base-stations (S...
Conference Paper
The number of mobile connected devices have increased exponentially worldwide. The services provided across mobile networks have also become increasingly demanding for higher network capacity. This has motivated the use of the heterogeneous network (HetNet) architecture. However, despite the low power consumption of small-scale base stations (BSs),...
Article
Utilizing the intelligence at the network edge, edge computing paradigm emerges to provide time-sensitive computing services for Internet of Things. In this paper, we investigate sustainable computation offloading in an edge-computing system that consists of energy harvesting-enabled mobile devices (MDs) and a dispatcher. The dispatcher collects co...
Article
Traffic offloading through heterogenous small-cell networks (HSCNs) has been envisioned as a cost-efficient approach to accommodate the tremendous traffic growth in cellular networks. In this paper, we investigate an energy-efficient dual-connectivity (DC) enabled traffic offloading through HSCNs, in which small cells are powered in a hybrid manner...
Article
Full-text available
The rapidly growing energy consumption of the Internet core network has been a growing concern. In this respect, we have proposed a distributed and load adaptive energy saving router mechanism, Energy Saving Router (ESR), to manage the energy consumption of green routers in our previous work. In the present work, we propose an analytical model to i...
Article
Full-text available
Software-defined networking is a promising networking paradigm for achieving programmability and centralized control in communication networks. These features simplify network management and enable innovation in network applications and services such as routing, virtual machine migration, load balancing, security, access control, and traffic engine...
Article
The energy efficiency of wired networks has received considerable attention over the past decade due to its economic and environmental impacts. However, because of the vertical integration of the control and data planes in conventional networks, optimizing energy consumption in such networks is challenging. Software-defined networking (SDN) is an e...
Article
Full-text available
Due to the limited battery power of sensor nodes and harsh deployment environment, it is of fundamental importance and great challenge to achieve high energy efficiency and strong robustness in large-scale wireless sensor networks (LS-WSNs). To this end, we propose two self-organizing schemes for LSWSNs. The first scheme is the energy-aware common...
Article
Full-text available
In this paper, we study resource management and allocation for Energy Harvesting Cognitive Radio Sensor Networks (EHCRSNs). In these networks, energy harvesting supplies the network with a continual source of energy to facilitate self-sustainability of the power-limited sensors. Furthermore, cognitive radio enables access to the underutilized licen...
Article
Full-text available
The smart electricity grid introduces new opportunities for fine-grained consumption monitoring. Such functionality, however, requires the constant collection of electricity data that can be used to undermine consumer privacy. In this work, we address this problem by proposing two decentralized protocols to securely aggregate the measurements of n...
Article
Full-text available
The incorporation of Cognitive Radio (CR) and Energy Harvesting (EH) capabilities in wireless sensor networks enables spectrum and energy efficient heterogeneous cognitive radio sensor networks (HCRSNs). The new networking paradigm of HCRSNs consists of EH-enabled spectrum sensors and battery powered data sensors. Spectrum sensors can cooperatively...
Article
Full-text available
Although academic dishonesty has a long history in academia, its pervasiveness has recently reached an alarming level. Academic dishonesty not only undermines the purpose of education and the assessment process but also threatens the creditability of academic records. We propose a framework for analysing students’ behaviour with respect to academic...
Article
Full-text available
The existing Ethernet networks are designed with high redundancy and over-dimensioning so they can provide reliable services during peak traffic demand periods. However, this has increased the total energy consumption and operational cost. In this paper, we propose an energy saving algorithm (ESA) to reduce the energy consumption of green routers b...
Conference Paper
Full-text available
In this paper, we present three network evolution models for generating fault-tolerant and energy-efficient large- scale peer-to-peer wireless sensor networks (WSNs) based on complex networks theory. Being scale-free is one of the intrin- sic features of complex networks-based evolution models that generates fault-tolerant topologies. In this work,...
Conference Paper
Full-text available
Power consumption and CO2 emission have become a major concern over the last few years. Several recent studies have shown that servers and network equipments consume up to 45% of the energy consumption of data centers [1]. Software-defined networking is a new networking paradigm that decouples the control and data functionalities; thus, makes netwo...
Conference Paper
Full-text available
The communication among entities in any network is administered by a set of rules and technical specifications detailed in the communication protocol. All communicating entities adhere to the same protocol to successfully exchange data. Most of the rules are expressed in an algorithm format that computes a decision based on a set of inputs provided...
Conference Paper
Full-text available
This work contributes to better understanding of the optimal penalties for the deterrence of academic dishonesty. Academic dishonesty has recently become one of the most prevalent issues in higher education [1]. In order to address this issue, researches have focused on understanding cheating methods and techniques, determinants, punishment, and co...
Article
The above-named article (ibid., Vol 48, No 4 (Oct. 2012), 3073-3083 ), was published with incomplete figures 1-7. The corrected figures are provided.
Article
An acoustic vector-sensor (a.k.a. vector-hydrophone) is composed of three acoustic velocity-sensors, plus a collocated pressure-sensor, all collocated in space. The velocity-sensors are identical, but orthogonally oriented, each measuring a different Cartesian component of the three-dimensional particle-velocity field. This acoustic vector-sensor o...
Conference Paper
Full-text available
Although cooperative diversity (CD) systems are widely considered in recent wireless communications standards, little research has been undertaken on their performance under practical conditions. In this study, we study the impact of the channel estimation error on the performance of the multilevel quadrature amplitude modulation (M-QAM) based rege...
Article
Fair weights have been implemented to maintain fairness in recent resource allocation schemes. However, designing fair weights for multiservice wireless networks is not trivial because users' rate requirements are heterogeneous and their channel gains are variable. In this paper, we design fair weights for opportunistic scheduling of heterogeneous...
Article
Full-text available
This paper presents a novel scheme for the allocation of subcarriers, rates, and power in orthogonal frequency-division multiple-access (OFDMA) networks. The scheme addresses practical implementation issues of resource allocation in OFDMA networks: the inaccuracy of channel-state information (CSI) available to the resource allocation unit (RAU) and...
Conference Paper
Full-text available
In this paper, a novel Kalman filter-based power allocation scheme is developed for cooperative networks with inaccurate channel state information (CSI). The channel estimation error is embedded in the power allocation model which results in uncertain linear and time varying system. The robust and constrained Kalman filter (RCKF) scheme adapts the...
Conference Paper
Maintaining fairness using weighting factors is a common approach in resource allocation. However, computing weighting factors for multiservice wireless networks is not trivial because users' rate requirements are heterogeneous and their channel gains are variable. In this paper, we propose weighting factor computation and scheduling schemes for or...
Article
Full-text available
This paper presents a novel approach to investigate ergodic mutual information of OFDMA Selection-Decode-and-Forward (SDF) cooperative relay networks with imperfect channel state information (CSI). Relay stations are either dedicated or non-dedicated (i.e., subscriber stations assisting other subscriber stations). The CSI imperfection is modeled as...
Conference Paper
Full-text available
This paper addresses practical implementation issues of resource allocation in OFDM A networks: inaccuracy of channel state information (CSI) available to the resource allocation unit (RAU) and diversity of subscribers' quality of service (QoS) requirements. The resource allocation problem in the considered point-to-multipoint (PMP) network is mode...
Conference Paper
Full-text available
This paper analyzes the ergodic mutual information of OFDMA cooperative relay networks when the Channel State Information (CSI) imperfection is considered at resource allocation unit. Based on the derived ergodic mutual information, a quantitative characterization of the impact of CSI inaccuracy on the ergodic mutual information is presented. A net...
Conference Paper
Full-text available
In this paper, we focus on the resources allocation for the OFDMA based two-hop relay network which consists of a single base station, dedicated fixed relay stations and subscriber stations. Subscriber stations are allocated the subcarriers and relay stations that are required to satisfy their minimum rate requirements in either non-cooperative mod...
Article
A comprehensive and integrative overview (excluding ultrawideband measurements) is given of all the empirical data available from the open literature on various temporal properties of the indoor radiowave communication channel. The concerned frequency range spans over 0.8-8 GHz. Originally, these data were presented in about 70 papers in various jo...
Conference Paper
Full-text available
A vector-hydrophone (a.k.a. acoustic vector-sensor) is composed of two or three spatially collocated but orthogonally oriented velocity-hydrophones, possibly plus a collocated pressure-hydrophone. A vector-hydrophone may form azimuth-elevation spatial beams that are invariant with respect to the sources' frequencies, bandwidths and radial locations...

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Projects

Projects (5)
Project
Model the indoor wireless channel
Project
Hydrophones are piezoelectric transducer based microphones that detects sounds underwater. The piezoelectric transducer generates an electric signal when the acoustic pressure changes. A velocity-hydrophone measures one Cartesian component of the three dimensional particle-velocity vector of the incident wavefield. Velocity-hydrophone technology has existed for decades in the field of underwater acoustics and is the subject of renewed interest. A four-component vector-hydrophone has two or three orthogonally oriented velocity-hydrophones and a pressure hydrophone, all collocated in a point-like geometry. A four-element vector-hydrophone (located at the coordinates’ origin as illustrated in the figure below simultaneously estimates both the azimuth and the elevation arrival angles of the acoustic signal. Hence, it tracks the source generating it under water. Our work focuses on the design of tracking algorithms that track the source in various settings based on Hydrophones’ measurements.
Project
Broadband wireless access (BWA) networks are being developed to replace the last mile wireline access networks such as DSL and cable networks. The simple and small receiver structure allows BWA networks to provide service directly to subscribers, without the need for intermediate receivers (i.e., modems), which is the case for wireline networks. In addition, BWA networks are suitable for providing service in countries that lack fiber optics infrastructure, or have low population density or with rough topographies where laying cables is expensive. Because of their fast deployment in comparison to wired networks, they can be used in disaster recovery. Figure below illustrates an example of BWA networks. Standards that specify the technical aspects of BWA networks are IEEE 802.16, the high performance radio metropolitan area network (HiperMAN), the European telecommunication standard, and the 3rd generation partnership project (3GPP). Due to the limited availability of resources at the base station, e.g., bandwidth and power, intelligent allocation of these resources to subscribers is crucial for delivering the best possible quality of service (QoS) to consumers with the least cost. This is especially important with the high data rates envisioned for the next generation wireless standards. The resource allocation problem of allocating time slots, subcarriers, rates, and power to subscribers has been the focus of my research work.