TO THE METTER OF OPTIMIZATION OF THE AMPLITUDE-FREQUENCY RESPONSES OF COMMUNICATION CHANNELS WITH PSK-N-SIGNALS BASED ON THE THEORY OF RESOLUTION TIME
Ilya M. Lerner,Kazan National Research Technical University
named after A.N. Tupolev-KAI, Kazan, Russia, aviap@mail.ru
Abstract
Currently, the annual increase in the amount of transmitted information is an essential feature of modern society. This fact, subject to its mobility, leads to the need to search for new approaches that can significantly increase the capacity of radio engineering data transmission systems. Such approaches include the method that realize the developing of wireless communication systems based on the resolution time theory, which allows quite efficient operation in the communication channel with memory in the presence of intersymbol interference. In this paper, based on the mathematical modeling of such communication systems which use multiposition phase-shifted signals unity ultimate capacity estimations are obtained. Criteria for optimization the shape of the amplitude-frequency responses of the communication channel and the configuration of signal constellations are formulated. The results obtained in the work confirm the fundamental possibility of achieving unity capacity of at least 6 bit / s * Hz in the absence of frequency detuning and at least 5.83 bit / s * Hz in the it presence.
Keywords:capacity estimation, ISI, PSK-n-signals, bandpass filters, optimization problem.
References
- Lerner I.M. (2017), “Method for Capacity Estimation of Real Communicational Channels with PSK-n-signals in presence of ISI and its application”, T-Comm, No.8, pр. 52-58.
- Lerner I.M. (2017), “Analytical estimation of capacity of the communicational channel with the frequency response of the resonance filter in the presence of ISI and the use of PSK-n-signal”, T-Comm, No.9, pр. 65-73.
- Lerner I. M. and Kamalletdinov N. N. (2017) “To a question of increasing the data transmission rate of phase radio-technical data transmission systems operating under strong intersymbol interference in linear radio path”, H&ES Research, No. 5. pр. 92-104.
- Lerner I. M. and Il’in G. I. (2017), “Possibility of increasing the data transmission rate in the presence of destabilizing factors in communication systems using symbols with mutual interference”, Physics of Wave Processes and Radio Engineering Systems, No.4. pp.24-34.
- Lerner I.M. and Chernyavskii S.M. (2018), “Capacity estimation of real communicational channels with APSK-N-signals in presence of ISI”, T-Comm, No.4, pр. 48-55.
- Lerner, I.M., Fayzullin, R.R. and Chernyavskii, S.M. (2018), “To a Matter of Increasing the Spectral Efficiency of Phase Radio-Technical Data Transmission Systems Operating under Strong Intersymbol Interference”, Russian Aeronautics, Vol.61, No.1, pp.120-126.
- Lerner, I.M., Il’in G.I. (2018), “Numerical method for potential capacity estimation of a communication channel with isi under utilizing of PSK-n-signal”, Bulletin of KSTU named after A.N. Tupolev, No.4, pp.138-149.
- Lerner, I.M., Il’in G.I., Il’in A.G. (2018), “On the cyclostationarity of APSK-N-signals observed on the output of communication channel with intersymbol Interference”, Bulletin of KSTU named after A.N. Tupolev, No.3, 107-117.
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Information about author:
Ilya M. Lerner, associated professor, candidate of physico-mathematical sciences, Kazan National Research Technical University named after A.N. Tupolev-KAI, Department of Radioelectronic and Quantum Devices, Kazan, Russia