Results 11 to 20 of about 4,863,781 (309)
Understanding Long Range-Frequency Hopping Spread Spectrum (LR-FHSS) with Real-World Packet Traces [PDF]
ACM Trans. Sens. Networks, 2023 Long Range-Frequency Hopping Spread Spectrum (LR-FHSS) is a new physical layer option that has been recently added to the LoRa family with the promise of achieving much higher network capacity than the previous versions of LoRa.
Jumana Bukhari, Zhenghao Zhang
semanticscholar +1 more source
On Effectiveness of Hopping-Based Spread Spectrum Techniques for Network Forensic Traceback [PDF]
International Journal of Networked and Distributed Computing (IJNDC), 2013 Network-based crime has been increasing in both extent and severity and network-based forensics encapsulates an essential part of legal surveillance. A key network forensics tool is traceback that can be used to identify true sources of suspects.
Wei Yu +6 more
doaj +1 more source
Photonics based frequency hopping spread spectrum system for secure terahertz communications.
Optics Express, 2022 Terahertz (THz) spectrum (100 GHz-10 THz) is considered the next frontier in the design of high-speed wireless communication systems. While the high-power THz sources have commercially become available, it increases the possibility of developing THz ...
K. Nallappan, M. Skorobogatiy
semanticscholar +1 more source
IEEE Communications Letters, 2022 The frequency-hopping spread spectrum (FHSS) signals can be sparsely represented in frequency domain at any given time. In this letter, we render a dictionary and propose non-cooperative adaptive compressed measurement and decoding methods of FHSS ...
Feng Liu, Guiling Sun, Shiang Zhang
semanticscholar +1 more source
Analysis of repeater jamming of a slow frequency hopping radio
Vojnotehnički Glasnik, 2022 Introduction/purpose: The article presents a model of a slow frequency hopping radio in the case of repeater jamming. The aim is to analyze the effectiveness of repeater jamming to a military tactical slow frequency hopping radio.
Nenad M. Stojanović +2 more
doaj +1 more source
Optimum Combining for Coherent FFH/DS Spread Spectrum Receivers in the Presence of Multi-Tone Jammer
IEEE Access, 2020 Fast Frequency Hopping/Direct Sequence (FFH/DS) hybrid spread spectrum is an effective technique of the communication network for the robot swarms operating in complex electromagnetic environment.
Shixun Luo +5 more
doaj +1 more source
Blind Joint Soft-Detection Assisted Slow Frequency-Hopping Multicarrier DS-CDMA [PDF]
, 2000 A novel multiple-access scheme based on slow frequency-hopping multicarrier direct-sequence, code-division multiple access (SFH/MC DS-CDMA) is proposed and investigated, which can be rendered compatible with the existing second-generation narrow-band ...
Yang, L-L., Hanzo, L.
core +2 more sources
, 2021 The article deals with an algorithm for noncoherent reception of signals with Differential Quadrature Phase Shift Keying (DQPSK) using their weight processing for radio communication systems (RCS) with Frequency-hopping spread spectrum (FHSS) under ...
A. A. Paramonov, Van Z. Hoang
semanticscholar +1 more source
Sensors, 2014 Indoor localization of persons and objects poses a great engineering challenge. Previously developed localization systems demonstrate the use of wideband techniques in ultrasound ranging systems.
Laurent Segers +3 more
doaj +1 more source
Radio Frequency Fingerprinting for Frequency Hopping Emitter Identification
Applied Sciences, 2021 In a frequency hopping spread spectrum (FHSS) network, the hopping pattern plays an important role in user authentication at the physical layer. However, recently, it has been possible to trace the hopping pattern through a blind estimation method for ...
Jusung Kang +4 more
doaj +1 more source