Exploiting spectrum sensing data for key management
نویسندگان
چکیده
منابع مشابه
Spectrum sensing for cognitive radio exploiting spectrum discontinuities detection
This article presents a spectrum sensing algorithm for wideband cognitive radio exploiting sensed spectrum discontinuity properties. Some work has already been investigated by wavelet approach by Giannakis et al., but in this article we investigate an algebraic framework in order to model spectrum discontinuities. The information derived at the level of these irregularities will be exploited in...
متن کاملSpectrum Sensing: Key to Cognition
Cognitive Radio (CR) significantly improve spectrum utilization through dynamic spectrum access (DSA). Efficient utilization of the unused or partially used spectrum for providing opportunistic access to secondary users (SU) is the main function of CR. CR has to sense continuously radio environment and keep on adjusting its transmission parameters for opportunistic transmission without causing ...
متن کاملParallel Cyclostationarity-Exploiting Algorithm for Energy-Efficient Spectrum Sensing
The evolution of wireless communication systems leads to Dynamic Spectrum Allocation for Cognitive Radio, which requires reliable spectrum sensing techniques. Among the spectrum sensing methods proposed in the literature, those that exploit cyclostationary characteristics of radio signals are particularly suitable for communication environments with low signal-to-noise ratios, or with non-stati...
متن کاملSpectrum Sensing Data Falsification Attack in Cognitive Radio Networks: An Analytical Model for Evaluation and Mitigation of Performance Degradation
Cognitive Radio (CR) networks enable dynamic spectrum access and can significantly improve spectral efficiency. Cooperative Spectrum Sensing (CSS) exploits the spatial diversity between CR users to increase sensing accuracy. However, in a realistic scenario, the trustworthy of CSS is vulnerable to Spectrum Sensing Data Falsification (SSDF) attack. In an SSDF attack, some malicious CR users deli...
متن کاملImproving Spectrum Sensing Performance by Exploiting Multiuser Diversity
In traditional wireless systems, spectrum or frequency is allocated to licensed users over a geographic area. Within these constraints, spectrum is considered a scarce resource due to static spectrum allocation. Recent empirical studies of radio spectrum usage have shown that licensed spectrum is typically highly underutilized (Broderson et al., 2004; McHenry, 2003). To recapture the so-called ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Computer Communications
سال: 2017
ISSN: 0140-3664
DOI: 10.1016/j.comcom.2016.10.008