Search Results

The adoption of MIMO technology in wireless networks enhances spectral efficiency and enables novel functionalities such as wireless sensing and localization. These functionalities can be enabled by Open-RAN architecture to provide high computation, ...

The rapid expansion of wireless technologies demands effective management of complex RAN for MIMO in 5G systems. Current architectures and RAN Intelligent Controllers (RICs) lack critical real-time data processing and physical layer functionalities, ...

Open Radio Access Network (O-RAN) brings a revolutionary approach to cellular RANs through its flexible and interoperable RAN architecture. It involves the separation of hardware and software components, allowing RAN vendors to subscribe to applications ...

Jamming attacks pose a serious threat to the normal functioning of cellular networks, disrupting communication services and compromising emergency situations. This paper introduces BeamArmor, a practical real-time application to monitor and mitigate ...

The measurement errors induced by the space‐time adaptive processing (STAP) is gaining attention for its significant detriment to the precision of the global navigation satellite system (GNSS) receiver positioning. To mitigate measurement errors, ...

Wideband cancellation of interference in a GPS receive array. The space‐time adaptive processing (STAP) beamformer may induce measurement errors in a satellite receiver, resulting in positioning errors. To mitigate these errors when the directions of the ...

In order to reduce the redundancy of the analysis process of UAV communication cyclostationary signal, a modeling and analysis method of UAV communication cyclostationary signal based on virtual reality technology is proposed. Using the VR ...

Simultaneous wireless information and power transfer (SWIPT) can provide power and information synchronously, which assists to solve the problem of the limited battery capacity and inconvenient charging of Internet of Things (IoT) devices. In this paper,...

In order to make the global navigation satellite system (GNSS) have the ability of anti-jamming, it is a feasible scheme to replace the antenna in situ. However, the widely developed anti-jamming antenna is bulky and heavy, which can not meet the needs ...

The traditional adaptive nulling antenna array anti-interference algorithm can cause phase distortion, make the antenna phase unstable, and produce positioning error. Based on the analysis of the adaptive nulling antenna array anti-jamming algorithm, this ...

For the problem that the satellite navigation signal is easily interfered, the anti-jamming technology of the traditional navigation receiver usually needs the direction of arrival (DOA) of the navigation signal. This paper proposes an anti-jamming method ...

In this paper, we propose an approach for mitigating deterministic and partially deterministic jamming signals from the received signal space, thus yielding recoverable signal vectors at a target receiver. Aimed at friendly or self-jamming environments, ...

As Underwater Acoustic Networks (UANs) are being widely utilized in scientific, commercial and military areas, there has been a shift in attention to secure communication. Jamming is a Denial-of-Service (DoS) attack which prohibits the reliable data ...

This tutorial paper addresses the physical layer security concerns and resiliency of Orthogonal Frequency Division Multiplexing (OFDM) communications; the de facto air-interface of most modern wireless broadband standards including 3GPP Long Term ...

In this paper, anti-jamming capabilities are proposed for a generic OFDM-based wireless communication system. The performance of a wireless system may severely degrade in presence of jamming or intentional interferences. A malicious entity can send ...

We propose an adaptive transmit and receive beam forming (TRBF) scheme for Time Division Duplex Multiple Input and Multiple Output (TDD-MIMO) system. Through analyzing the anti-jamming mechanism and deficiency from the point of subspace projection, we ...

In this paper, we propose an anti-jamming resource allocation scheme based on reserve channel with priority (RCP) fit algorithm for multi-frequency, time division multiple access (MF-TDMA) technology in satellite networks. The RCP fit allocates the ...

Global positioning system (GPS) signal is weak and vulnerable. Using the frequency-domain notching filter cascaded with space domain filter can improve the anti-jamming ability of the GPS receiver. However, when the narrowband jamming falls in the ...

Encoding technology is an effective measure to combat jamming by taking advantage of encoding redundancy. Low-Density Parity-Check (LDPC) code, with excellent performance that is close to theory limit, has drawn an increasing attention in Frequency ...

Wireless networks are an integral part of today's cyber-physical infrastructure. Their resiliency to jamming is critical not only for military applications, but also for civilian and commercial applications. In this paper, we design, prototype, and ...

Cognitive radio (CR) is a novel technology that promises to improve spectrum efficiency by allowing secondary users (SUs) to dynamically access spectrum without using by primary users. With offering great flexibility and software reconfigurability, ...