Trust-aware and Cooperative Routing Protocol for IoT Security (2020)
Journal Article
Djedjig, N., Tandjaoui, D., Medjek, F., & Romdhani, I. (2020). Trust-aware and Cooperative Routing Protocol for IoT Security. Journal of Information Security and Applications, 52, Article 102467. https://doi.org/10.1016/j.jisa.2020.102467

The resource-constrained nature of IoT objects makes the Routing Protocol for Low-power and Lossy Networks (RPL) vulnerable to several attacks. Although RPL specification provides encryption protection to control messages, RPL is still vulnerable to... Read More about Trust-aware and Cooperative Routing Protocol for IoT Security.

BCFR: Blockchain-based Controller Against False Flow Rule Injection in SDN (2020)
Presentation / Conference Contribution
Boukria, S., Guerroumi, M., & Romdhani, I. (2019, June). BCFR: Blockchain-based Controller Against False Flow Rule Injection in SDN. Presented at 11th IEEE International Workshop on Performance Evaluation of Communications in Distributed Systems and Web based Service Architectures, PEDISWESA'2019, Barcelona, Spain

Software Defined Networking (SDN) technology increases the evolution of Internet and network development. SDN, with its logical centralization of controllers and global network overview changes the network's characteristics, on term of flexibility, a... Read More about BCFR: Blockchain-based Controller Against False Flow Rule Injection in SDN.

Cross-Layer Multipath Multichannel MAC protocol for MANETs (2018)
Presentation / Conference Contribution
Mirza, N., Taylor, H., Abdelshafy, M., King, P., Romdhani, I., & Alghamdi, A. (2018, June). Cross-Layer Multipath Multichannel MAC protocol for MANETs. Presented at The International Symposium on Networks, Computers and Communications (ISNCC), Rome, Italy

Utilising multiple disjoint paths in multiple channels can improve network performance by enabling a node to reroute data along discovered paths seamlessly when link failure is detected. However, depending on a stale route to recover from a broken li... Read More about Cross-Layer Multipath Multichannel MAC protocol for MANETs.

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 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.

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. Presented at The 16th IEEE International Conference on Smart City (IEEE SmartCity-2018), Exeter

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.

Lightweighted and energy-aware MIKEY-Ticket for e-health applications in the context of internet of things (2018)
Journal Article
Abdmeziem, M. R., Tandjaoui, D., & Romdhani, I. (2018). Lightweighted and energy-aware MIKEY-Ticket for e-health applications in the context of internet of things. International Journal of Sensor Networks, 26(4), 227. https://doi.org/10.1504/ijsnet.2018.090462

E-health applications have emerged as a promising approach to provide unobtrusive and customizable support to elderly and frail people based on their situation and circumstances. However, due to limited resources available in such systems and data pr... Read More about Lightweighted and energy-aware MIKEY-Ticket for e-health applications in the context of internet of things.

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).

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.

A new Zigbee-based device for measuring visual reaction time in sport activities (2018)
Presentation / Conference Contribution
Ali, B. B., Dugas, É., Naceur, A., & Romdhani, I. (2017, May). A new Zigbee-based device for measuring visual reaction time in sport activities. Presented at 2017 International Conference on Engineering & MIS (ICEMIS)

There is a growing demand for smart tools and devices that measure visual reaction time during sports and physical activities in outdoor environments. However, one of the major problems is the need to maintain an on-time 1 pulse per second (pps) refe... Read More about A new Zigbee-based device for measuring visual reaction time in sport activities.

A Trust-based Intrusion Detection System for Mobile RPL Based Networks (2018)
Presentation / Conference Contribution
Medjek, F., Tandjaoui, D., Romdhani, I., & Djedjig, N. (2017, June). A Trust-based Intrusion Detection System for Mobile RPL Based Networks. Presented at 10th IEEE International Conference on Internet of Things (iThings-2017)

Successful deployment of Low power and Lossy Networks (LLNs) requires self-organising, self-configuring, security, and mobility support. However, these characteristics can be exploited to perform security attacks against the Routing Protocol for Low-... Read More about A Trust-based Intrusion Detection System for Mobile RPL Based Networks.

A new dynamic weight clustering algorithm for wireless sensor networks (2017)
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.

Reliable multipath multi-channel route migration over multi link-failure in wireless ad hoc networks (2017)
Presentation / Conference Contribution
Mirza, N. S., King, P. J. B., Romdhani, I., Abdelshafy, M. A., & Alghamdi, A. A. (2017, October). Reliable multipath multi-channel route migration over multi link-failure in wireless ad hoc networks. Presented at 2017 IEEE 13th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)

The route recovery algorithm is a crucial part of an ad hoc routing protocol. Designing an efficient and fast route recovery mechanism scheme without incurring extra overheads or delays to repair the broken link is a desirable goal for any routing pr... Read More about Reliable multipath multi-channel route migration over multi link-failure in wireless ad hoc 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).

Performance Evaluation of RPL Protocol under Mobile Sybil Attacks (2017)
Presentation / Conference Contribution
Medjek, F., Tandjaoui, D., Romdhani, I., & Djedjig, N. (2017, August). Performance Evaluation of RPL Protocol under Mobile Sybil Attacks. Presented at 2017 IEEE Trustcom/BigDataSE/ICESS

In Sybil attacks, a physical adversary takes multiple fabricated or stolen identities to maliciously manipulate the network. These attacks are very harmful for the Internet of Things (IoT) applications. In this paper we implemented and evaluated the... Read More about Performance Evaluation of RPL Protocol under Mobile Sybil Attacks.

Drizzle: Adaptive and fair route maintenance algorithm for Low-power and Lossy Networks in IoT (2017)
Presentation / Conference Contribution
Ghaleb, B., Al-Dubai, A., Romdhani, I., Nasser, Y., & Boukerche, A. (2017, May). Drizzle: Adaptive and fair route maintenance algorithm for Low-power and Lossy Networks in IoT. Presented at 2017 IEEE International Conference on Communications (ICC)

Low-power and Lossy Networks (LLNs) have been a key component in the Internet of Things (IoT) paradigm. Recently, a standardized algorithm, namely Trickle algorithm, is adopted for routing information maintenance in such networks. This algorithm is o... Read More about Drizzle: Adaptive and fair route maintenance algorithm for Low-power and Lossy Networks in IoT.

Trust-Based Defence Model Against MAC Unfairness Attacks for IoT (2017)
Presentation / Conference Contribution
Djedjig, N., Tandjaoui, D., Romdhani, I., & Medjek, F. (2017, July). Trust-Based Defence Model Against MAC Unfairness Attacks for IoT. Presented at The Thirteenth International Conference on Wireless and Mobile Communications

The vulnerability of IoT networks makes channel access security a serious problem. The IEEE 802.15.4 MAC (Media Access Control) layer faces the risk of attacks from malicious nodes which attempts to get a dominating position and hold unfair advantage... Read More about Trust-Based Defence Model Against MAC Unfairness Attacks for IoT.

Performance evaluation of RPL metrics in environments with strained transmission ranges. (2017)
Presentation / Conference Contribution
Thomson, C., Wadhaj, I., Romdhani, I., & Al-Dubai, A. (2016, November). Performance evaluation of RPL metrics in environments with strained transmission ranges. Presented at 2016 IEEE/ACS 13th International Conference of Computer Systems and Applications (AICCSA), Agadir, Morocco

An examination of existing studies in the area of Routing Protocol for Low-Power and Lossy Networks (RPL) implementation in wireless sensor networks (WSNs) reveals a consistent approach taken of optimal node distribution. This in order to best evalua... Read More about Performance evaluation of RPL metrics in environments with strained transmission ranges..

New trust metric for the RPL routing protocol (2017)
Presentation / Conference Contribution
Romdhani, I., Djedjig, N., Medjek, F., & Tandjaoui, D. (2017, April). New trust metric for the RPL routing protocol. Presented at 2017 8th International Conference on Information and Communication Systems (ICICS)

Establishing trust relationships between routing nodes represents a vital security requirement to establish reliable routing processes that exclude infected or selfish nodes. In this paper, we propose a new security scheme for the Internet of things... Read More about New trust metric for the RPL routing protocol.