Wireless Communication

Permanent URI for this collection

http://dspace.alquds.edu:4000/handle/20.500.12213/95

The Wireless Communication Research Group is dedicated to advancing the frontiers of next-generation mobile and wireless technologies. With a core focus on 3G 4G 5G Mobile Networks, Wi-Fi, 6G,. Our group explores the full spectrum of wireless communication — from foundational signal processing techniques to large-scale network planning, optimization, and implementation. Our interdisciplinary research addresses key challenges in mobile network performance, spectrum efficiency, and quality of service, while also emphasizing sustainable and scalable infrastructure development. We conduct in-depth evaluations of wireless systems to improve coverage, quality, reliability, and throughput, ensuring our work directly impacts real-world deployment and future innovation. In parallel, we delve into smart systems, Internet of Things (IoT) integration, and the incorporation of artificial intelligence (AI) to enhance adaptive network behavior and intelligent resource management. Our work in spectrum management is shaping the way wireless technologies coexist and evolve in increasingly crowded frequency bands. Through rigorous experimentation and collaboration with academia and industry, the group aims to influence the design of future wireless networks and establish practical frameworks for 6G systems, AI-driven communication, and beyond. We are committed to driving innovation that connects people, devices, and services seamlessly and intelligently.

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Now showing 1 - 5 of 6

Propagation Model Tuning for Terrestrial Microwave Links in Palestine
(IEEE, 2022-07-26) Ali Jamoos
In this paper, we have studied the terrestrial microwave links operated by the Palestinian mobile network operator (JAWWAL). Particularly, we have analyzed the path loss power measurements from 90 active terrestrial microwave links at three different frequencies which are 15GHz, 18GHz and 23GHz covering all geographical locations in the West Bank. The length of these microwave links varies from about 0.174Km to 33.864Km. The path loss power measurements were compared with that of the theoretical free-space propagation model as well as with the results obtained from Mentum Ellipse software simulation tool. The root mean square error results show that the free-space model is far away (7.64 dB) from the measured data. Therefore, we have suggested to tune the free-space propagation model based on linear least squares method. The proposed tuned free-space model yields better fit to the measured data with reduced root mean square error of 5.84 dB. In addition, the suggested tuned model yields comparable results to that obtain by Mentum Ellipse simulation.
Performance Evaluation of Palestinian Mobile Networks Based on Crowdsourcing Measurements
(IEEE International Conference on Electrical and Electronics Engineering (ICEEE), Marmaris, Turkiye, 2024-04-22) Safa Nassereldin, Rami Sawalmeh, Mohammad Barakat, Nadeen Shanan, and Ali Jamoos
The evaluation of mobile network performance involves assessing various key performance indicators (KPIs) that gauge the efficiency and effectiveness of these networks. The key performance indicators of the Palestinian mobile networks are usually monitored by the mobile network operators (MNOs) through their operation support subsystems and the carried-out drive tests. This include the received signal level, received signal quality, drop rate, handover success rate, packet loss, latency, throughput, etc. The Palestinian ministry of telecommunications and information technology (MTIT) together with the Palestinian Telecom Regulatory Authority (PTRA) also conduct performance measurements for the mobile networks through drive tests to monitor the quality of service (QoS) measurements delivered by each mobile operator and compare them with the standard KPIs benchmark limits. They aim to enhance user experience and network efficiency. However, these performance measurements either from the MNOs or the regulation agency are limited and do not reflect the exact end user experience. Therefore, in this paper, we address the performance evaluation of the Palestinian MNOs based on a large community of connected people smartphone crowdsourcing technique. Here, using smartphone crowdsourcing can collect continuous real-time data on network performance from a large number of smartphone users with various locations. Thus, the quality of experience (QoE) can be evaluated from the end user perspective with a bigger data set. In this paper, we have developed and implemented a smartphone application called “Signal Sense” for crowdsourced mobile network measurements. The performed measurements include location information, signal level, signal quality and throughput for 3G mobile networks in Palestine. The evaluation of these measurements reflects the relative performance of the Palestinian MNOs.
Flexible Unicast-Based Group Communication for CoAP-Enabled Devices
(Sensors, 2014-06-04) Ishaq, Isam
Smart embedded objects will become an important part of what is called the Internet of Things. Applications often require concurrent interactions with several of these objects and their resources. Existing solutions have several limitations in terms of reliability, flexibility and manageability of such groups of objects. To overcome these limitations we propose an intermediately level of intelligence to easily manipulate a group of resources across multiple smart objects, building upon the Constrained Application Protocol (CoAP). We describe the design of our solution to create and manipulate a group of CoAP resources using a single client request. Furthermore we introduce the concept of profiles for the created groups. The use of profiles allows the client to specify in more detail how the group should behave. We have implemented our solution and demonstrate that it covers the complete group life-cycle, i.e., creation, validation, flexible usage and deletion. Finally, we quantitatively analyze the performance of our solution and compare it against multicast-based CoAP group communication. The results show that our solution improves reliability and flexibility with a trade-off in increased communication overhead.
IETF Standardization in the Field of the Internet of Things (IoT): A Survey
(MDPI AG, 2013-04-25) Ishaq, Isam; Carels, David; Teklemariam, Girum; Abeele, Floris; De Poorter, Eli
Smart embedded objects will become an important part of what is called the Internet of Things. However, the integration of embedded devices into the Internet introduces several challenges, since many of the existing Internet technologies and protocols were not designed for this class of devices. In the past few years, there have been many efforts to enable the extension of Internet technologies to constrained devices. Initially, this resulted in proprietary protocols and architectures. Later, the integration of constrained devices into the Internet was embraced by IETF, moving towards standardized IP-based protocols. In this paper, we will briefly review the history of integrating constrained devices into the Internet, followed by an extensive overview of IETF standardization work in the 6LoWPAN, ROLL and CoRE working groups. This is complemented with a broad overview of related research results that illustrate how this work can be extended or used to tackle other problems and with a discussion on open issues and challenges. As such the aim of this paper is twofold: apart from giving readers solid insights in IETF standardization work on the Internet of Things, it also aims to encourage readers to further explore the world of Internet-connected objects, pointing to future research opportunities.
Experimental Evaluation of Unicast and Multicast CoAP Group Communication
(MDPI, 2016-07-21) Ishaq, Isam
The Internet of Things (IoT) is expanding rapidly to new domains in which embedded devices play a key role and gradually outnumber traditionally-connected devices. These devices are often constrained in their resources and are thus unable to run standard Internet protocols. The Constrained Application Protocol (CoAP) is a new alternative standard protocol that implements the same principals as the Hypertext Transfer Protocol (HTTP), but is tailored towards constrained devices. In many IoT application domains, devices need to be addressed in groups in addition to being addressable individually. Two main approaches are currently being proposed in the IoT community for CoAP-based group communication. The main difference between the two approaches lies in the underlying communication type: multicast versus unicast. In this article, we experimentally evaluate those two approaches using two wireless sensor testbeds and under different test conditions. We highlight the pros and cons of each of them and propose combining these approaches in a hybrid solution to better suit certain use case requirements. Additionally, we provide a solution for multicast-based group membership management using CoAP.

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