Prof Ahmed Al-Dubai's Outputs (169)

On the performance of broadcast algorithms in interconnection networks. (2005)
Presentation / Conference Contribution
Al-Dubai, A., & Ould-Khaoua, M. (2005). On the performance of broadcast algorithms in interconnection networks. . https://doi.org/10.1109/ICPPW.2005.63

Broadcast Communication is among the most primitive collective capabilities of any message passing network. Broadcast algorithms for the mesh have been widely reported in the literature. However, most existing algorithms have been studied within limi... Read More about On the performance of broadcast algorithms in interconnection networks..

Towards efficient collective communications for interconnection networks. (2004)
Thesis
Al-Dubai, A. (2004). Towards efficient collective communications for interconnection networks. (Thesis). University of Glasgow. Retrieved from http://researchrepository.napier.ac.uk/id/eprint/3679

Towards scalable collective communication for multicomputer interconnection networks (2004)
Journal Article
Al-Dubai, A., Ould-Khaoua, M., El-Zayyat, K., Ababneh, I., & Al-Dobai, S. (2004). Towards scalable collective communication for multicomputer interconnection networks. Information Sciences, 163(4), 293-306. https://doi.org/10.1016/j.ins.2003.06.014

A considerable number of broadcast algorithms have been proposed for the mesh over the past decade. Nonetheless, most of these algorithms do not exhibit good scalability properties as the network size increases. As a consequence, most existing broadc... Read More about Towards scalable collective communication for multicomputer interconnection networks.

QoS aware broadcast communication algorithm for multicomputer interconnections. (2004)
Presentation / Conference Contribution
Al-Dubai, A., Ould-Khaoua, M., & Ferguson, J. (2004). QoS aware broadcast communication algorithm for multicomputer interconnections.

Focuses on group communication algorithms in high performance networks, parallel and distributed systems, quality of service and routing protocols, mobile and wireless Technologies

A Simulation Study of Scalable Broadcast in High-Performance Regular Networks (2004)
Journal Article
Al-Dubai, A. Y., Ould-Khaoua, M., & Obaidat, M. S. (2004). A Simulation Study of Scalable Broadcast in High-Performance Regular Networks. SIMULATION, 80(4-5), 207-220. https://doi.org/10.1177/0037549704044325

Broadcast is an important communication operation required by many real-world applications encountered in parallel, cluster, and grid computing environments. Broadcasting on regular networks has been widely investigated in the past. However, most of... Read More about A Simulation Study of Scalable Broadcast in High-Performance Regular Networks.

On collective communication in wormhole-switched interconnection networks (2003)
Report
Al-Dubai, A. (2003). On collective communication in wormhole-switched interconnection networks

Qualified groups: an efficient path-based multicast algorithm for mesh networks (2003)
Report
Al-Dubai, A. (2003). Qualified groups: an efficient path-based multicast algorithm for mesh networks

On balancing traffic load in path-based multicast communication. (2003)
Presentation / Conference Contribution
Al-Dubai, A., Ould-Khaoua, M., El-Zayyat, K., & Mackenzie, L. (2003). On balancing traffic load in path-based multicast communication. In SPECTS '03 (533-540)

Multicast is the most primitive collective capability of any
message-passing network. It is itself central to many
important parallel applications in Science and
Engineering but are also fundamental to the
implementation of higher-level communica... Read More about On balancing traffic load in path-based multicast communication..

Performance comparison of path-based multicast algorithms (2003)
Presentation / Conference Contribution
Al-Dubai, A., Ould-Khaoua, M., & Mackenzie, L. (2003). Performance comparison of path-based multicast algorithms.

A scalable plane-based broadcast algorithm for 3D-Mesh networks (2003)
Presentation / Conference Contribution
Al-Dubai, A., Ould-Khaoua, M., & Mackenzie, L. (2003, February). A scalable plane-based broadcast algorithm for 3D-Mesh networks. Presented at Eleventh Euromicro Conference on Parallel, Distributed and Network-Based Processing, 2003. Proceedings

Broadcast algorithms for wormhole–switched meshes
have been widely reported in the literature. However,
most of these algorithms handle broadcast in a sequential
manner and do not scale well with the network size. As a
consequence, many parallel... Read More about A scalable plane-based broadcast algorithm for 3D-Mesh networks.

A new scalable broadcast algorithm for multiport meshes with minimum communication steps (2003)
Journal Article
Ould-Khaoua, M., Al-Dubai, A., Al-Dubai, A., & Ould-Khaoua, M. (2003). A new scalable broadcast algorithm for multiport meshes with minimum communication steps. Microprocessors and Microsystems, 27(3), 101-113. https://doi.org/10.1016/s0141-9331%2802%2900094-7

Many broadcast algorithms have been proposed for the mesh in the literature. However, most of these algorithms do not exhibit good scalability properties as the network size increases. As a consequence, most existing broadcast algorithms cannot suppo... Read More about A new scalable broadcast algorithm for multiport meshes with minimum communication steps.

On the design of scalable pipelined broadcasting for mesh networks (2002)
Presentation / Conference Contribution
Al-Dubai, A., & Ould-Khaoua, M. (2002). On the design of scalable pipelined broadcasting for mesh networks. In High Performance Computing Systems and Applications (98-105). https://doi.org/10.1109/HPCSA.2002.1019140

Minimising the communication latency and achieving considerable scalability are of paramount importance when designing high performance broadcast algorithms. Many algorithms for wormhole-switched meshes have been widely reported in the literature. Ho... Read More about On the design of scalable pipelined broadcasting for mesh networks.

New minimal adaptive routing for broadcasting in n-dimensional meshes. (2001)
Report
Al-Dubai, A. (2001). New minimal adaptive routing for broadcasting in n-dimensional meshes

An efficient adaptive broadcast algorithm for the mesh network (2001)
Presentation / Conference Contribution
Al-Dubai, A., & Ould-Khaoua, M. (2001). An efficient adaptive broadcast algorithm for the mesh network. In Eighth International Conference on Parallel and Distributed Systems (ICPADS'01) (83-90). https://doi.org/10.1109/ICPADS.2001.934805

Most existing broadcast algorithms proposed for the mesh do not scale well with the network size. Furthermore, they have been mainly based on deterministic routing, which cannot exploit the alternative paths provided by mesh topology to reduce commun... Read More about An efficient adaptive broadcast algorithm for the mesh network.

Towards optimal broadcasting in wormhole-routed meshes (2001)
Presentation / Conference Contribution
Al-Dubai, A., Ould-Khaoua, M., & Mackenzie, L. (2001, June). Towards optimal broadcasting in wormhole-routed meshes. Presented at PDPTA '2001

Most existing broadcast algorithms proposed for the mesh do not scale well with the network size. Furthermore, they have been mainly based on deterministic routing, which cannot exploit the alternative paths provided by mesh topology to reduce commun... Read More about Towards optimal broadcasting in wormhole-routed meshes.

A new routing approach for collective communication in interconnection networks (2000)
Journal Article
Al-Dubai, A. (2000). A new routing approach for collective communication in interconnection networks. International Journal of Advances in Modeling & Analysis,

Load Balancing Objective Function in RPL
Other
Qasem, M., Al-Dubai, A., Romdhani, I., & Ghaleb, B. (2017). Load Balancing Objective Function in RPL

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 Netwo... Read More about Load Balancing Objective Function in RPL .

A new dynamic weight clustering algorithm for wireless sensor networks
Presentation / Conference Contribution
Essa, A., Al-Dubai, A., Romdhani, I., & Eshaftri, M. (2016, May). A new dynamic weight clustering algorithm for wireless sensor networks. Presented at 1st EAI International Conference on Smart Grid Inspired Future Technologies (SmartGift 2016)

Since sensor nodes have limited energy resources, prolonging network lifetime and improving scalability are essential elements in energy-efficient Wireless Sensor Networks (WSNs). Most existing approaches consider the residual energy of a single node... Read More about A new dynamic weight clustering algorithm for wireless sensor networks.

A Dynamic Power Tuning for the Constrained Application Protocol of Internet of Things
Presentation / Conference Contribution
Qasem, M., Al-Dubai, A., Romdhani, I., & Yassien, M. B. (2015, October). A Dynamic Power Tuning for the Constrained Application Protocol of Internet of Things. Presented at 2015 IEEE International Conference on Computer and Information Technology; Ubiquitous Computing and Communications; Dependable, Autonomic and Secure Computing; Pervasive Intelligence and Computing

Constrained application protocol (CoAP) has been designed for M2M and IoT applications. The resource directory (RD) in CoAP requires periodical updates by other nodes. However, a regular update process causes extra signaling overhead and drains the n... Read More about A Dynamic Power Tuning for the Constrained Application Protocol of Internet of Things.

Performance Evaluation of the RPL Protocol in Fixed and Mobile Sink Low-Power and Lossy-Networks
Presentation / Conference Contribution
Wadhaj, I., Kristof, I., Romdhani, I., & Al-Dubai, A. (2015, October). Performance Evaluation of the RPL Protocol in Fixed and Mobile Sink Low-Power and Lossy-Networks. Presented at 2015 IEEE International Conference on Computer and Information Technology; Ubiquitous Computing and Communications; Dependable, Autonomic and Secure Computing; Pervasive Intelligence and Computing

Low-Power and Lossy-Network (LLN) are usually composed of static nodes, but the increase demand for mobility in mobile robotic and dynamic environment raises the question how a routing protocol for low-power and lossy-networks such as (RPL) would per... Read More about Performance Evaluation of the RPL Protocol in Fixed and Mobile Sink Low-Power and Lossy-Networks.