Ashraf E. Al-Fagih

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The proliferation of wireless sensors has given rise to public sensing (PS) as a vibrant data-sharing model. This vision can be extended under the umbrella of the Internet of Things (IoT) to include versatile data sources within smart cities such as cell phones, radio frequency identification tags and sensors on roads, and buildings and living spaces. The(More)
The Internet of Things (IoT) represents an evolutionary vision that promises to identify and connect physical objects and devices. This vision faces many challenges in terms of integrating technologies, especially RFID-sensor networks (RSNs). In this paper, we introduce a framework for node deployment and delaytolerance in RSNs under the IoT paradigm. Our(More)
In this paper, we propose a novel architecture for integrated Radio Frequency IDentifiers (RFIDs) and Wireless Sensor Networks (WSNs) to accommodate an array of applications in a cost-effective manner. Integration combines the traceability and sensing capabilities of the two technologies to maximize the effectiveness of the resulting systems. RFID(More)
In this paper, we present URIA, a Ubiquitous Robust Integrated Approach for data delivery in integrated RFID-Sensor Networks (RSNs). The proposed approach deploys ubiquitous wireless nodes equipped with transceivers as couriers between integrated reader/relay nodes and access points in an IoT setting. In addition to guaranteeing a specific level of(More)
Information-Centric Networks (ICNs) represent a content-based model which addresses user's requests regardless of the content's location or the nature of its original publisher. The performance of an ICN is highly dependent on replicating the content across the caches of a multitude of nodes in the network. Given the high data turnover rates of contemporary(More)
RFID-Sensor Networks (RSNs) represent the pervasive components of the heterogeneous Internet of Things (IoT) paradigm. By incorporating both the identification and localization capabilities of Radio Frequency Identification (RFID) and the sensing and inter-communication of Wireless sensor networks (WSNs), RSNs are capable of realizing the IoT on a global(More)
Delay Tolerant Networks (DTNs) represent a class of wireless networks that experience frequent and long lasting partitions due to sparse distribution of nodes in the topology. A traditional TCP/IP setting assumes the definite existence of a contemporaneous end-to-end path between any source-destination pair in the network. Any setting that violates this(More)
Radio Frequency IDentification (RFID) is a wireless technology that promises to facilitate many identification and tracking solutions. The placement problem, i.e. choosing the optimal locations for RFID readers, tags or both in a given RFID layout, is reviewed in this paper. Placement approaches are generally coverage-driven and vary according to the(More)
In integrated RFID and Wireless Sensor Networks (RSNs), the abundance of wirelessly enabled mobile devices facilitates forwarding data packets. This presents a beneficial alternative to offload transmission from relay nodes to access points. However, there is no incentive for such mobile devices to carry the relaying task. Hence, we introduce heuristics for(More)