Prof Ahmed Al-Dubai's Outputs (169)

MOSAIC: Simultaneous Localization and Environment Mapping using mmWave without a-priori Knowledge (2018)
Journal Article
Yassin, A., Nasser, Y., Al-Dubai, A., & Awad, M. (2018). MOSAIC: Simultaneous Localization and Environment Mapping using mmWave without a-priori Knowledge. IEEE Access, 6, 68932-68947. https://doi.org/10.1109/access.2018.2879436

Simultaneous Localization and environment mapping (SLAM) is the core to robotic mapping and navigation as it constructs simultaneously the unknown environment and localizes the agent within. However, in millimeter wave (mmWave) research, SLAM is stil... Read More about MOSAIC: Simultaneous Localization and Environment Mapping using mmWave without a-priori Knowledge.

Addressing the DAO Insider Attack in RPL’s Internet of Things Networks (2018)
Journal Article
Ghaleb, B., Al-Dubai, A., Ekonomou, E., Qasem, M., Romdhani, I., & Mackenzie, L. (2019). Addressing the DAO Insider Attack in RPL’s Internet of Things Networks. IEEE Communications Letters, 23(1), 68-71. https://doi.org/10.1109/LCOMM.2018.2878151

In RPL routing protocol, the DAO (Destination Advertisement Object) control messages are announced by the child nodes to their parents to build downward routes. A malicious insider node can exploit this feature to send fake DAOs to its parents period... Read More about Addressing the DAO Insider Attack in RPL’s Internet of Things Networks.

A Survey of Limitations and Enhancements of the IPv6 Routing Protocol for Low-power and Lossy Networks: A Focus on Core Operations (2018)
Journal Article
Ghaleb, B., Al-Dubai, A. Y., Ekonomou, E., Alsarhan, A., Nasser, Y., Mackenzie, L. M., & Boukerche, A. (2019). A Survey of Limitations and Enhancements of the IPv6 Routing Protocol for Low-power and Lossy Networks: A Focus on Core Operations. Communications Surveys and Tutorials, IEEE Communications Society, 21(2), 1607-1635. https://doi.org/10.1109/COMST.2018.2874356

Driven by the special requirements of the Low-power and Lossy Networks (LLNs), the IPv6 Routing Protocol for LLNs (RPL) was standardized by the IETF some six years ago to tackle the routing issue in such networks. Since its introduction, however, num... Read More about A Survey of Limitations and Enhancements of the IPv6 Routing Protocol for Low-power and Lossy Networks: A Focus on Core Operations.

A Novel Adaptive and Efficient Routing Update Scheme for Low-Power Lossy Networks in IoT (2018)
Journal Article
Ghaleb, B., Al-Dubai, A., Ekonomou, E., Romdhani, I., Nasser, Y., & Boukerche, A. (2018). A Novel Adaptive and Efficient Routing Update Scheme for Low-Power Lossy Networks in IoT. IEEE Internet of Things Journal, 5(6), 12. https://doi.org/10.1109/JIOT.2018.2862364

In this paper, we introduce Drizzle, a new algorithm for maintaining routing information in the Low-power and Lossy Networks (LLNs). The aim is to address the limitations of the currently standardized routing maintenance (i.e. Trickle algorithm) in s... Read More about A Novel Adaptive and Efficient Routing Update Scheme for Low-Power Lossy Networks in IoT.

Performance Investigation of RPL Routing in Pipeline Monitoring WSNs (2018)
Presentation / Conference Contribution
Wadhaj, I., Gharebi, W., Al-Dubai, A., & Thomson, C. (2018, June). Performance Investigation of RPL Routing in Pipeline Monitoring WSNs. Presented at 2018 IEEE 20th International Conference on High Performance Computing and Communications; IEEE 16th International Conference on Smart City; IEEE 4th International Conference on Data Science and Systems (HPCC/SmartCity/DSS), Exeter, United Kingdom

The adoption of WSN and IEEE 802.15.4 standard for the linear WSN networks were assumed. The interconnection of WSNs with the Internet is possible by assigning IPv6 addresses to low- power devices. The 6LoWPAN adaption layer enables the IPv6 addresse... Read More about Performance Investigation of RPL Routing in Pipeline Monitoring WSNs.

Reliable and Energy-Efficient Two Levels Unequal Clustering Mechanism for Wireless Sensor Networks (2018)
Presentation / Conference Contribution
Ali, A. E., Al-Dubai, A., Romdhani, I., & Eshaftri, M. (2018, June). Reliable and Energy-Efficient Two Levels Unequal Clustering Mechanism for Wireless Sensor Networks. Paper presented at The 16th IEEE International Conference on Smart City (IEEE SmartCity-2018)

In Wireless Sensor Networks, clustering sensor nodes into disjoint groups is widely used to achieve load balance and increase network lifetime. In particular, traditional unequal clustering approaches where small clusters located close to the base st... Read More about Reliable and Energy-Efficient Two Levels Unequal Clustering Mechanism for Wireless Sensor Networks.

Drizzle Algorithm (2018)
Report
Ghaleb, B., Al-Dubai, A., Romdhani, I., & Qasem, M. (2018). Drizzle Algorithm. USA: IETF

Trickle algorithm used in RPL routing protocol suffers from some issues related to power, network convergence time and overhead and
load-distribution. To optimize this algorithm for Low-power and Lossy Networks (LLNs), a new algorithm called Dr... Read More about Drizzle Algorithm.

Reliability and Energy Efficiency Enhancement for Emergency-Aware Wireless Body Area Networks (WBANs) (2018)
Journal Article
Salayma, M., Al-Dubai, A., Romdhani, I., & Nasser, Y. (2018). Reliability and Energy Efficiency Enhancement for Emergency-Aware Wireless Body Area Networks (WBANs). IEEE Transactions on Green Communications and Networking, 2(3), 804-816. https://doi.org/10.1109/tgcn.2018.2813060

Medium Access Control (MAC) protocols based on Time Division Multiple Access (TDMA) can improve the reliability and efficiency of WBAN. However, traditional static TDMA techniques adopted by IEEE 802.15.4 and IEEE 802.15.6 do not sufficiently conside... Read More about Reliability and Energy Efficiency Enhancement for Emergency-Aware Wireless Body Area Networks (WBANs).

A New Spectrum Management Scheme for Road Safety in Smart Cities (2018)
Journal Article
Alsarhan, A., Al-Dubai, A. Y., Min, G., Zomaya, A. Y., & Bsoul, M. (2018). A New Spectrum Management Scheme for Road Safety in Smart Cities. IEEE Transactions on Intelligent Transportation Systems, 19(11), 3496-3506. https://doi.org/10.1109/TITS.2017.2784548

Traffic management in roads is one of the major challenges faced in developing efficient intelligent transportation systems. Recently, wireless networks have received significant attention for tackling this challenge. However, wireless technologies f... Read More about A New Spectrum Management Scheme for Road Safety in Smart Cities.

Load Balancing Objective Function in RPL draft-qasem-roll-rpl-load-balancing-01 (2018)
Report
Qasem, M., Al-Dubai, A., Romdhani, I., & Ghaleb, B. (2018). Load Balancing Objective Function in RPL draft-qasem-roll-rpl-load-balancing-01. USA: IETF

This document proposes an extended Objective Function(OF) that balances the number of children nodes of the parent nodes to avoid the overloading problem and ensure node lifetime maximization in the IPv6 Routing Protocol for Low-Power and Lossy Net... Read More about Load Balancing Objective Function in RPL draft-qasem-roll-rpl-load-balancing-01.

Leaf-based Routing Mechanism for Low-Power and Lossy Networks (2018)
Patent
Ghaleb, B., & Al-Dubai, A. (2018). Leaf-based Routing Mechanism for Low-Power and Lossy Networks. 1800668.4. Intellectual Property Office, UK

Unlike existing solutions, our invention provides a “Leaf-Based” mechanism for establishing the Downward routes in Low-Power and Lossy Networks (LLNs) that seeks to provide a novel, scalable and efficient routing solution for LLNs, which are the back... Read More about Leaf-based Routing Mechanism for Low-Power and Lossy Networks.

Load Balancing Objective Function in RPL (Draft 2) (2017)
Report
Qasem, M., Al-Dubai, A., Romdhani, I., Ghaleb, B., Hou, J., & Jadhav, R. A. (2017). Load Balancing Objective Function in RPL (Draft 2). USA: IETF

This document proposes an extended Objective Function(OF) that balances the number of child nodes of the parent nodes to avoid the overloading problem and ensure node lifetime maximization in the IPv6 Routing Protocol for Low-Power and Lossy Ne... Read More about Load Balancing Objective Function in RPL (Draft 2).

Adaptive Resource Allocation and Provisioning in Multi-Service Cloud Environments (2017)
Journal Article
Alsarhan, A., Itradat, A., Al-Dubai, A. Y., Zomaya, A. Y., & Min, G. (2018). Adaptive Resource Allocation and Provisioning in Multi-Service Cloud Environments. IEEE Transactions on Parallel and Distributed Systems, 29(1), 31-42. https://doi.org/10.1109/tpds.2017.2748578

In the current cloud business environment, the cloud provider (CP) can provide a means for offering the required quality of service (QoS) for multiple classes of clients. We consider the cloud market where various resources such as CPUs, memory, and... Read More about Adaptive Resource Allocation and Provisioning in Multi-Service Cloud Environments.

VANET aided D2D Discovery: Delay Analysis and Performance (2017)
Journal Article
Chour, H., Nasser, Y., Artail, H., Kachouh, A., & Al-Dubai, A. (2017). VANET aided D2D Discovery: Delay Analysis and Performance. IEEE Transactions on Vehicular Technology, 66(9), 8059-8071. https://doi.org/10.1109/TVT.2017.2690238

The proposed solutions in the literature for integrating Device-to-Device (D2D) communication in cellular networks require added functionalities and consume valuable network resources, mainly in the discovery process. Unlike existing solutions, this... Read More about VANET aided D2D Discovery: Delay Analysis and Performance.

Wireless Body Area Network (WBAN): A Survey on Reliability, Fault Tolerance, and Technologies Coexistence (2017)
Journal Article
Salayma, M., Al-Dubai, A., Romdhani, I., & Nasser, Y. (2017). Wireless Body Area Network (WBAN): A Survey on Reliability, Fault Tolerance, and Technologies Coexistence. ACM computing surveys, 50(1), Article 3. https://doi.org/10.1145/3041956

Wireless Body Area Network (WBAN) has been a key element in e-health to monitor bodies. This technology enables new applications under the umbrella of different domains, including the medical field, the entertainment and ambient intelligence areas. T... Read More about Wireless Body Area Network (WBAN): A Survey on Reliability, Fault Tolerance, and Technologies Coexistence.

BARBEI: a new adaptive battery aware and reliable beacon enabled technique for IEEE802.15.4 MAC. (2017)
Book Chapter
Salayma, M., Al-Dubai, A., Romdhani, I., & Yassein, M. B. (2017). BARBEI: a new adaptive battery aware and reliable beacon enabled technique for IEEE802.15.4 MAC. In M. Grzenda, J. Furtak, J. Legierski, & A. I. Awad (Eds.), Advances in Networking Systems Architectures, Security, and Applications (317-335). Springer

The IEEE 802.15.4 standard supports both physical and Media Access Con-trol (MAC) layers of low rate Wireless Sensor Network (WSNs). However, this stand-ard considers only the ideal linear power consumption, omitting the fact that the diffu-sion prin... Read More about BARBEI: a new adaptive battery aware and reliable beacon enabled technique for IEEE802.15.4 MAC..

BEFTIGRE: Behaviour-driven full-tier green evaluation of mobile cloud applications (2017)
Journal Article
Chinenyeze, S. J., Liu, X., & Al-Dubai, A. (2017). BEFTIGRE: Behaviour-driven full-tier green evaluation of mobile cloud applications. Journal of Software: Evolution and Process, 29(2), e1848. https://doi.org/10.1002/smr.1848

With the resource-constrained nature of mobile devices and the resource-abundant offerings of the cloud, several promising optimisation techniques have been proposed by the green computing research community. Prominent techniques and unique methods h... Read More about BEFTIGRE: Behaviour-driven full-tier green evaluation of mobile cloud applications.

A new efficient cross-layer relay node selection model for Wireless Community Mesh Networks (2017)
Journal Article
Zhao, L., Al-Dubai, A., Li, X., Chen, G., & Min, G. (2017). A new efficient cross-layer relay node selection model for Wireless Community Mesh Networks. Computers and Electrical Engineering, 61, 361-372. https://doi.org/10.1016/j.compeleceng.2016.12.031

Current networking technologies are not perfectly equipped to support Quality of Service (QoS), which is vital for real-time multimedia applications in Wireless Community Mesh Networks (WCNs). Therefore, there is a need to devise innovative routing a... Read More about A new efficient cross-layer relay node selection model for Wireless Community Mesh Networks.

Recent Advances in Indoor Localization: A Survey on Theoretical Approaches and Applications (2016)
Journal Article
Yassin, A., Nasser, Y., Awad, M., Al-Dubai, A., Liu, R., Yuen, C., Raulefs, R., & Aboutanios, E. (2017). Recent Advances in Indoor Localization: A Survey on Theoretical Approaches and Applications. Communications Surveys and Tutorials, IEEE Communications Society, 19(2), 1327-1346. https://doi.org/10.1109/comst.2016.2632427

Nowadays, the availability of the location information becomes a key factor in today’s communications systems for allowing location based services. In outdoor scenarios, the Mobile Terminal (MT) position is obtained with high accuracy thanks to the G... Read More about Recent Advances in Indoor Localization: A Survey on Theoretical Approaches and Applications.

Cooja Simulator Manual (2016)
Report
Thomson, C., Romdhani, I., Al-Dubai, A., Qasem, M., Ghaleb, B., & Wadhaj, I. (2016). Cooja Simulator Manual. Edinburgh: Edinburgh Napier University

While Cooja has been proven to be an ideal tool for the simulation of RPL in WSNs, there are challenges involved in its use, particularly in regard to a lack of documentation. The Contiki website provides an image of Instant Contiki which can then be... Read More about Cooja Simulator Manual.