Szczegóły publikacji
Opis bibliograficzny
Frequency-domain modeling of OFDM transmission with insufficient cyclic prefix using Toeplitz matrices / Grzegorz CISEK, Tomasz P. ZIELIŃSKI // W: VTC2018-Fall [Dokument elektroniczny] : 2018 IEEE 88th Vehicular Technology Conference : connecting the mobile world : 27-30 August 2018, Chicago, USA. — Wersja do Windows. — Dane tekstowe. — [Piscataway] : IEEE, cop. 2018. — 1 dysk Flash. — (IEEE Vehicular Technology Conference ; ISSN 1090-3038). — ISBN: 978-1-5386-6358-5; e-ISBN: 978-1-5386-6357-8. — S. [1–5]. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. [5], Abstr.
Autorzy (2)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 115888 |
|---|---|
| Data dodania do BaDAP | 2018-09-10 |
| DOI | 10.1109/VTCFall.2018.8690835 |
| Rok publikacji | 2018 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Wydawca | Institute of Electrical and Electronics Engineers (IEEE) |
| Konferencja | IEEE Vehicular Technology Conference 2018 |
| Czasopismo/seria | IEEE Vehicular Technology Conference |
Abstract
A novel mathematical framework is proposed to model Intersymbol Interference (ISI) phenomenon in wireless communication systems based on Orthogonal Frequency Division Multiplexing (OFDM) with or without cyclic prefix. The framework is based on a new formula to calculate the Fast Fourier Transform (FFT) of a triangular Toeplitz matrix, which is derived and proven in this paper. It is shown that distortion inducted by the ISI from a given subcarrier is the most significant for the closest subcarriers and the contribution decays as the distance between subcarriers grows. According to numerical experiments, knowledge of ISI coefficients concentrated around the diagonal of Channel Frequency Response (CFR) matrix improves the receiver’s error floor significantly. The potential use of the framework for real-time frequency domain channel simulation was also investigated and demonstrated to be more efficient than conventional time domain Tapped Delay Line (TDL) model when a number of simulated users is high.
