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| Journal of Information Organization | | Volume: 13, Issue: 3 ( September 2023) |
Editorial Message |
| Research |
The Transmission of Differentially Encoded Offset Quadrature Phase Shift Keying on Gamma-Shadowed Nakagami-m Fading Channel
Milica I. Petkovic, Bojana Nikolic, Bata V. Vasic and Goran T. Dorevic
Page: 69-76
Abstract_  Full_Text 2.02 MB Download: 27 times
https://doi.org/10.6025/jio/2023/13/3/69-76
Abstract: The transmission of differentially encoded offset quadrature phase shift keying on gamma-shadowed Nakagamim fading channel is discussed in this paper. This leads to the formation of coherent detection of differentially encoded quadrature phase. The carrier signal recovery imperfection has been considered in the phase error in the phase-locked loop. The Tikhon distribution represents the phase error. The bit error probability expressions (BEPs) are discussed and the numerical results are provided.
| Quality of Service (QoS) for converging Service Technologies
Miroslav Slavov and Pencho Penchev
Page: 77-84
Abstract_ Full_Text 1.47 MB Download: 26 times
https://doi.org/10.6025/jio/2023/13/3/77-84
Abstract: QoS isn’t something which we configure on our Cisco router. Instead, it’s an umbrella term that encompasses a wide range of mechanisms used to control traffic patterns on the network. QoS has already proven to be the go-to technology for converging voice, video and data networks. But as business needs change, so do demands for QoS technologies. This paper will cover the basics of QoS, its needs, and a few types of available QoS mechanisms.
| Study of the Distribution of Harmonics in the Complex Sound
Marko Jankovic and Dejan Ciric
Page: 85-93
Abstract_ Full_Text 1.83 MB Download: 23 times
https://doi.org/10.6025/jio/2023/13/3/85-93
Abstract: The sound of an instrument is often described as a “complex” sound. A complex sound can be broken down into pure (simple) sounds. In many cases, a sound can be thought of as consisting of fundamental and harmonics that provide its characteristic characteristics, depending on the number of harmonics, their distribution, their amplitude and their envelope. The human auditory system’s ability to perceive pitch is related to the harmonics in a complex sound. In this paper, we will look at how the distribution of harmonics within a complex sound influences pitch perception. We will use spectral analysis and listening tests to do this. Particular attention will be paid to the phenomenon of “missing fundamentals.”
| Book Review |
Multi-Agent Reinforcement Learning: Foundations and Modern Approaches by Stefano V. Albrecht, Filippos Christianos, Lukas Schäfer, published by MIT Press, print version scheduled for late 2024. This work is subject to a Creative Commons CC-BY-NC-ND license
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Conference Notification |
.Fourth International Conference on Science & Technology Metrics (STMet 2023)
Third International Conference on Digital Data Processing University of Bedfordshire, Luton. UK
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