講演抄録/キーワード |
講演名 |
2014-10-27 13:00
Blind symbol synchronization scheme for preambleless OFDM systems based on cyclic prefixes in multipath channels ○Wen-jian Wang・Chang-Jun Ahn・Tatsuya Omori・Ken-ya Hashimoto(Chiba Univ.) SRW2014-28 |
抄録 |
(和) |
(まだ登録されていません) |
(英) |
Symbol timing offset (STO) can cause phase offset (FO),inter-symbol interference (ISI) and inter-channel interference (ICI) according to different starting point of Fast Fourier Transform (FFT) window in the receiver. To eliminate the impairs of ISI and ICI as much as possible,precise symbol timing synchronization must be carried out. In this paper, a novel symbol timing synchronization algorithm is proposed for orthogonal frequency division multiplexing (OFDM) systems on the basis
of cyclic prefix (CP). A metric function and a positioning function have
been designed by taking advantage of the correlation properties of OFDM
signals. Computer simulations demonstrate that the schemes are superior
because it achieves accurate timing offset estimation with smaller standard deviation (SD) and relatively lower computational complexity compared with the existing methods based on CP under high signal-noise ratio (SNR)assumption over frequency-selective channels. |
キーワード |
(和) |
/ / / / / / / |
(英) |
frequency-selective channels / preambleless OFDM / symbol timing offset / symbol timing synchronization / / / / |
文献情報 |
信学技報, vol. 114, no. 279, SRW2014-28, pp. 19-24, 2014年10月. |
資料番号 |
SRW2014-28 |
発行日 |
2014-10-20 (SRW) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
SRW2014-28 |