Browsing by Author "Djamaa, Badis"

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    A Comprehensive Study of multicast Routing Protocols in the Internet of Things
    (University of Eloued جامعة الوادي, 2022-01-24) Lakhlef, Issam Eddine; Djamaa, Badis; Senouci, Mustapha Reda
    IP multicast is a desired communication feature in the Internet of Things (IoT) as it provides noticeable resource savings, especially for Low-power and Lossy Networks (LLNs). Indeed, multicast allows cost-, energy-, and time-efficient networking for a multitude of LLN applications ranging from over-the-air programming and information sharing to device configuration and resource discovery. In this context, several multicast routing protocols have been recently proposed for LLNs including Stateless multicast RPL Forwarding (SMRF), Enhanced SMRF (ESMRF), Bi-Directional multicast Forwarding Algorithm (BMFA), and multicast Protocol for LLNs (MPL). Nevertheless, each protocol has been evaluated under different conditions, topologies, and traffic flow, which prevents making comprehensive comparisons of their characteristics and performance. In this paper, we provide an overview of recent LLN multicast protocols followed by a multidimensional performance evaluation of the most popular ones to extract their advantages and drawbacks under different traffic conditions, routing scenarios, and network topologies. Obtained results from extensive realistic simulations using Cooja show that, although each protocol is dominant under specific conditions, MPL remains the best in terms of packet delivery ratio in all scenarios at the expense of extra energy consumption, which requires new resourcesaware multicast solutions for the IoT.
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    Forwarding Strategies in NDN-based IoT Networks: A Comprehensive Study
    (University of Eloued جامعة الوادي, 2022-01-24) Djama, Adel; Djamaa, Badis; Senouci, Mustapha Reda
    Named Data Networking (NDN) is a new communication model that proposes to shift the manner to do networking by fetching data by names instead of host addresses. This data-driven architecture is considered promising for the Internet of Things (IoT) applications due to its inherent characteristics, such as naming, caching, and stateful forwarding, which give NDN the power to support natively, without adaptation mechanisms, the major requirements of the IoT environments. Nevertheless, particular management should be provided by the forwarding protocols when handling the limited resources of the IoT objects. This paper is devoted to investigating NDN-based forwarding strategies for the IoT, along with a comprehensive comparative study, followed by a simulation of some representative schemes. Insights on the main observations learned from the conducted evaluation are presented in the paper, highlighting the strengths, weaknesses, and suitability of every benchmarked solution in the context of NDN-IoT twinning.