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SDR (Software Defined Radio) provides flexible, reproducible, and longer-lasting radio tools for military and civilian wireless communications infrastructure. SDR is a radio communication system whose components are implemented as software.…

Networking and Internet Architecture · Computer Science 2025-06-24 Mehmet Kaan Erol , Eyup Emre Ulku

Integrated sensing and communication (ISAC) is envisioned to be one of the key usage scenarios for the sixth generation (6G) mobile communication networks. While significant progresses have been achieved for the theoretical studies, the…

Signal Processing · Electrical Eng. & Systems 2026-01-08 Zhiwen Zhou , Chaoyue Zhang , Xiaoli Xu , Yong Zeng

The long-range and low energy consumption requirements in Internet of Things (IoT) applications have led to a new wireless communication technology known as Low Power Wide Area Network (LPWANs). In recent years, the Long Range (LoRa)…

Networking and Internet Architecture · Computer Science 2022-10-27 Reza Serati , Benyamin Teymuri , Nikolaos Athanasios Anagnostopoulos , Mehdi Rasti

This work introduces security for unsourced random access (URA) by employing physical layer security techniques. To achieve confidentiality, the proposed system opportunistically exploits intrinsic features of feedback-aided URA without…

Information Theory · Computer Science 2026-03-26 Mohammad Javad Ahmadi , Rafael F. Schaefer , H. Vincent Poor

Retrieval-Augmented Generation (RAG) systems are emerging as a key approach for grounding Large Language Models (LLMs) in external knowledge, addressing limitations in factual accuracy and contextual relevance. However, there is a lack of…

Software Engineering · Computer Science 2025-09-25 Md Toufique Hasan , Muhammad Waseem , Kai-Kristian Kemell , Ayman Asad Khan , Mika Saari , Pekka Abrahamsson

The open radio access network (O-RAN) describes an industry-driven open architecture and interfaces for building next generation RANs with artificial intelligence (AI) controllers. We circulated a survey among researchers, developers, and…

Networking and Internet Architecture · Computer Science 2022-03-29 Aly S. Abdalla , Pratheek S. Upadhyaya , Vijay K. Shah , Vuk Marojevic

We propose an enhanced random access (RA) with preamble-assisted short-packet transmissions to support cellular Internet-of-things (IoT) communications. A key feature of the proposed scheme is that the base station (e.g., eNodeB in LTE…

Information Theory · Computer Science 2019-04-09 Taehoon Kim , Inkyu Bang

Large communication networks, e.g. Internet of Things (IoT), are known to be vulnerable to co-channel interference. One possibility to address this issue is the use of orthogonal multiple access (OMA) techniques. However, due to a…

Information Theory · Computer Science 2020-03-20 Steven Kisseleff , Symeon Chatzinotas , Björn Ottersten

The advent of reconfigurable intelligent surfaces(RISs) brings along significant improvements for wireless technology on the verge of beyond-fifth-generation networks (B5G).The proven flexibility in influencing the propagation environment…

Networking and Internet Architecture · Computer Science 2023-10-17 Guillermo Encinas-Lago , Antonio Albanese , Vincenzo Sciancalepore , Marco Di Renzo , Xavier Costa-Pérez

For fifth-generation (5G) and 5G-Advanced networks, outage reduction within the context of reliability is a key objective since outage denotes the time period when a user equipment (UE) cannot communicate with the network. Earlier studies…

Networking and Internet Architecture · Computer Science 2024-03-28 Subhyal Bin Iqbal , Umur Karabulut , Ahmad Awada , Philipp Schulz , Gerhard P. Fettweis

The integration of Unmanned Aerial Vehicles (UAVs) into Open Radio Access Networks (O-RAN) enhances communication in disaster management and Search and Rescue (SAR) operations by ensuring connectivity when infrastructure fails. However, SAR…

Cryptography and Security · Computer Science 2025-10-22 Zaineh Abughazzah , Emna Baccour , Loay Ismail , Amr Mohamed , Mounir Hamdi

This paper presents \emph{StormWave}, an open-source, portable software-defined Radio Frequency (RF) interference generation and monitoring platform designed for realistic field-based evaluation of the resilience of wireless communication…

With the rapid deployment of the Internet of Things (IoT), fifth-generation (5G) and beyond 5G networks are required to support massive access of a huge number of devices over limited radio spectrum radio. In wireless networks, different…

Signal Processing · Electrical Eng. & Systems 2020-12-18 Helin Yang , Zehui Xiong , Jun Zhao , Dusit Niyato , Chau Yuen , Ruilong Deng

To meet the high demand for mobile data, the Third Generation Partnership Project (3GPP) established a set of standards known as 5G New Radio (5G NR). The architecture of 5G NR includes a flexible radio access network and a core network.…

Networking and Internet Architecture · Computer Science 2020-12-22 Mohammed Hirzallah , Marwan Krunz , Balkan Kecicioglu , Belal Hamzeh

The advent of fifth generation (5G) networks has opened new avenues for enhancing connectivity, particularly in challenging environments like remote areas or disaster-struck regions. Unmanned aerial vehicles (UAVs) have been identified as a…

Networking and Internet Architecture · Computer Science 2023-12-25 Yuhui Wang , Junaid Farooq

Ultra reliable low latency communications (URLLC) is a new service class introduced in 5G which is characterized by strict reliability $(1-10^{-5})$ and low latency requirements (1 ms). To meet these requisites, several strategies like…

Signal Processing · Electrical Eng. & Systems 2021-12-01 Christian Padilla , Ramin Hashemi , Nurul Huda Mahmood , Matti Latva-aho

With the exponential increase in mobile users, the mobile data demand has grown tremendously. To meet these demands, cellular operators are constantly innovating to enhance the capacity of cellular systems. Consequently, operators have been…

Networking and Internet Architecture · Computer Science 2021-12-30 Vanlin Sathya , Srikant Manas Kala , Kalpana Naidu

Rotatable antenna (RA) is a promising technology that exploits new spatial degree-of-freedom (DoF) to improve wireless communication and sensing performance. In this letter, we investigate an RA-enabled secure communication system where…

Signal Processing · Electrical Eng. & Systems 2025-05-01 Liang Dai , Beixiong Zheng , Qingjie Wu , Changsheng You , Robert Schober , Rui Zhang

We consider unsourced random access (uRA) in user-centric cell-free (CF) wireless networks, where random access users send codewords from a common codebook during specifically dedicated random access channel (RACH) slots. The system is…

Information Theory · Computer Science 2024-08-16 Eleni Gkiouzepi , Burak Çakmak , Manfred Opper , Giuseppe Caire

Innovation and standardization in 5G have brought advancements to every facet of the cellular architecture. This ranges from the introduction of new frequency bands and signaling technologies for the radio access network (RAN), to a core…

Networking and Internet Architecture · Computer Science 2023-12-06 Michele Polese , Mischa Dohler , Falko Dressler , Melike Erol-Kantarci , Rittwik Jana , Raymond Knopp , Tommaso Melodia