Temat: SSK - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Performance Analysis of SPSK with Dual Polarized Transmit Antennas over Rayleigh Fading Channel
Autorzy:: Subramani, M.
Neduncheran, A. V.
Ponnusamy, V.
Powiązania:: https://bibliotekanauki.pl/articles/307739.pdf
Data publikacji:: 2018
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: ABER
dual polarized antenna
Rayleigh fading
spatial modulation
SPSK
SSK
Opis:: In this paper, the Space Polarization Shift Keying (SPSK) system, which is an extended version of Space Shift Keying (SSK) and includes both space and polarization dimensions with dual polarized antennas, is studied. The capacity and error probability analysis of SPSK for different polarization configurations are dealt with over the Rayleigh fading channel with a rich scattering environment. The analysis conducted shows that the SPSK with a dual polarized antenna (DP) offers better results than SPSK with a single orthogonal polarized antenna SPSK(SP), under non-LOS conditions. SPSK(DP) outperforms SSK by 4.2 dB over the correlated Rayleigh fading channel at 3 bits/s/Hz.
Źródło:: Journal of Telecommunications and Information Technology; 2018, 1; 58-61
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Examination of the effects of non-measurable explanatory variables on the value of real estate in the process of mass valuation of land
Autorzy:: Gdakowicz, Anna
Putek-Szeląg, Ewa
Kuźmiński, Wojciech
Powiązania:: https://bibliotekanauki.pl/articles/1046638.pdf
Data publikacji:: 2020-03-17
Wydawca:: Główny Urząd Statystyczny
Tematy:: method of statistical market analysis
mass valuation of real estate
non-measurable attributes
Spearman rank coefficient
standardized ßk coefficient
Opis:: The paper proposes a solution to the problem of how to introduce non-measurable features (attributes) of a property that significantly affect its value to the process of its valuation. The authors adopt two measures enabling them to study the influence of order features on the value of property, the Spearman rank coefficients and standardized βk coefficients, and proceed to check their efficiency, applying an algorithm of mass property valuation (SAMWN) to the sample of 567 plots of land in Szczecin designated for housing purposes. The results thus obtained are then compared with the valuations of these plots of land performed by property appraisers. The study demonstrates that lower valuation errors are obtained when using standardized βk coefficients than the Spearman rank coefficients.
Źródło:: Przegląd Statystyczny; 2019, 66, 3; 214-227
0033-2372
Pojawia się w:: Przegląd Statystyczny
Dostawca treści:: Biblioteka Nauki

Artykuł

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