Szczegóły publikacji
Opis bibliograficzny
Frequency-domain multi-user OFDMA fast fading channel simulation in high-mobility scenarios / Grzegorz CISEK, Tomasz P. ZIELIŃSKI // W: ISWCS 2018 [Dokument elektroniczny] : 15th International Conference on Wireless Communications Systems : 28–31 August 2018, Lisbon, Portugal. — Wersja do Windows. — Dane tekstowe. — Piscataway : IEEE, cop. 2018. — 1 dysk Flash. — e-ISBN: 978-1-5386-5004-2. — S. [477–482]. — Wymagania systemowe: Adobe Reader ; napęd CD-ROM. — Bibliogr. s. [482], Abstr. — Toż pod adresemhttps://ieeexplore-1ieee-1org-1000047dn0177.wbg2.bg.agh.edu.pl/stamp/stamp.jsp?tp=&arnumber=8491250
Autorzy (2)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 115970 |
|---|---|
| Data dodania do BaDAP | 2018-09-11 |
| DOI | 10.1109/ISWCS.2018.8491250 |
| Rok publikacji | 2018 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Wydawca | Institute of Electrical and Electronics Engineers (IEEE) |
| Konferencja | 15th International Symposium on Wireless Communication Systems |
Abstract
Simulation of wideband wireless fading channels in frequency domain is more advantageous than time domain Finite Impulse Response (FIR) filtering approach for Multiple Input Multiple Output (MIMO) and multi-user scenarios, but is constrained with additional limitations. One of them is lack of capability to reproduce a smooth channel transition between incoherent states. In this paper, a novel algorithm is proposed for direct frequency-domain interpolation aiming at reconstruction of Intercarrier Interference (ICI) effects in multi-user Orthogonal Frequency Division Multiple Access (OFDMA) simulation. A software implementation on a real-time Digital Signal Processor (DSP) is considered during performance analysis. The method offers reduction in both storage and complexity comparing to the state of the art solution when maintaining similar accuracy. Linear and non-linear interpolations are considered. It is shown that accuracy of quadratic interpolation is close to theoretical bound for moderate-high Doppler frequencies when effect of ICI is limited to neighboring subcarriers.
