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Toplam kayıt 15, listelenen: 1-10
Adaptive windowing of insufficient CP for joint minimization of ISI and ACI beyond 5G
(Institute of Electrical and Electronics Engineers Inc., 2017)
Using minimum, even insufficient guards are proposed to achieve the spectral efficiency and latency requirements of cellular communication systems beyond 5G. This leads to interference in both time and frequency domains. ...
Waveform designs for cognitive radio and dynamic spectrum access applications
(Springer Singapore, 2019)
Cognitive radio and dynamic spectrum access systems are effective ways of using radio spectrum which is a scarce source. Cognitive radio applications changed the paradigm for the wireless communications systems in the past ...
Adaptive bit-loading in relay-aided cognitive radio network
(Institute of Electrical and Electronics Engineers Inc., 2017)
In this work, we consider a joint power allocation and bit loading problem in an orthogonal frequency division multiplexing (OFDM) based cognitive radio (CR) network. The objective is to maximize the end-to-end rate in a ...
Energy aware wireless system based software defined radio
(Institute of Electrical and Electronics Engineers Inc., 2019)
Development of green telecommunication systems is already being considered highly attractive by standard bodies and recently is attracting research attention. While most of the research focuses on modeling and simulation, ...
Deep learning-assisted detection of PUE and jamming attacks in cognitive radio systems
(Institute of Electrical and Electronics Engineers Inc., 2020)
Cognitive radio (CR)-based internet of things systems can be considered as an efficient solution for futuristic smart technologies. However, CRs are naturally vulnerable to two major security threats; primary user emulation ...
Control of electromagnetic radiation on coexisting smart radio environment
(IEEE-Institute of Electrical and Electronics Engineers, 2022)
Efficient spectrum utilization is always the fundamental challenge of mobile communication technology toward 6G. Instead of conventional spectral efficiency in bps/Hz, geographical region shall be brought into consideration ...
Deep RL-based spectrum occupancy prediction exploiting time and frequency correlations
(Institute of Electrical and Electronics Engineers Inc., 2022)
In cognitive radio systems, predicting spectrum occupancies is a convenient alternative way to continuous spectrum sensing. It can provide information on spectrum usage and so empty spectrum bands can be used by secondary ...
Performance metrics and measurements
(Wiley, 2021)
This chapter discusses various metrics and measurement techniques discussed to inspect the communication system architecture and its performance. Signal quality estimation is by far the most important measure that can be ...
Intelligent spectrum occupancy prediction for realistic measurements: GRU based approach
(Institute of Electrical and Electronics Engineers Inc., 2022)
Cognitive radio (CR) technology has always been a research hotspot in the wireless communications field as it has the potential to significantly improve system capacity at the cost of increased processing time and power ...
Enhancing the performance of low priority SUs using reserved channels in CRN
(IEEE - Institute of Electrical and Electronics Engineers, Inc., 2020)
Cognitive radio networks (CRNs) are considered a promising solution for spectrum resources scarcity and efficient channel utilization. In this letter, multi-dimensional analytical Markov model based on reservation channel ...