{"title":"An Improved Algorithm of Packet Acquisition for UWB Wireless Sensor Network","authors":"I. Tropkina, S. Zavjalov, H. Boxiong, Dong Ge","doi":"10.1109/EExPolytech50912.2020.9243959","DOIUrl":"https://doi.org/10.1109/EExPolytech50912.2020.9243959","url":null,"abstract":"Wireless Sensor Networks (WSNs) in combination with ultra-wideband (UWB) technology can be widely employed in the industrial field. For instance, to monitor different parameters among harsh environments in hard-to-reach places. Hence, one of the requirements for transmitters of this network is low cost In our paper, considering simple nodes implementation, we present the novel physical layer algorithm for packet acquisition at the receiving side. The acquisition in our approach is performed using data symbols, so the preamble overhead is eliminated. Also, the scheme performance does not degrade. A UWB WSN is modeled in MATLAB. The obtained dependence of an effective data transfer rate on a signal to noise ratio (SNR) demonstrates the efficiency of the new method compared with the existing acquisition approach.","PeriodicalId":374410,"journal":{"name":"2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116671445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Smirnova, S. Makarov, S. Zavjalov, Boris Polozhintsev
{"title":"Influence of the Amplitude Limitation of Signals with the sin(x)/x Envelope on the Spectral and Energy Characteristics","authors":"E. Smirnova, S. Makarov, S. Zavjalov, Boris Polozhintsev","doi":"10.1109/EExPolytech50912.2020.9243855","DOIUrl":"https://doi.org/10.1109/EExPolytech50912.2020.9243855","url":null,"abstract":"Nonlinear distortions of spectrally efficient signals conditioned by using TWT amplifier are investigated. Influence of AM-AM and AM-PM conversions on signals with the sin/x envelope with different duration are considered. Signal oscillograms, spectrums and BER performance are obtained at the input and output TWT amplifier.","PeriodicalId":374410,"journal":{"name":"2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125930928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Behavior of a Single-Atom Laser in the Sub-Poissonian Regime","authors":"N. V. Larionov","doi":"10.1109/EExPolytech50912.2020.9243955","DOIUrl":"https://doi.org/10.1109/EExPolytech50912.2020.9243955","url":null,"abstract":"In the present work the model of a single-atom laser generating in the regime when incoherent pumping rate coincides with the cavity decay rate is theoretically investigated. Using the stationary equation for phase averaged Glauber P function the analytical expressions for mean number of photons and its dispersion are obtained. In the limiting case of the strong-coupling regime the exact expression for the photon number distribution function is derived. Obtained results describe the sub-Poissonian photon statistics and show an increase in mean number of photons to non-zero value when the pumping tends to zero.","PeriodicalId":374410,"journal":{"name":"2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125668595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}