| 講演抄録/キーワード |
| 講演名 |
2007-07-20 15:00
Non-synchronized random access process of Single Carrier FDMA system ○Doohwan Lee・Hiroyuki Morikawa(Univ. of Tokyo) RCS2007-52 |
| 抄録 |
(和) |
(まだ登録されていません) |
| (英) |
Single carrier FDMA (SC-FDMA) is promising technology as an attractive alternative to OFDMA system thanks to low PAPR property. It is adopted as uplink candidate in 3GPP long term evolution (LTE) system. SC-FDMA based LTE uplink system provides random access with synchronized way and non-synchronized way. In particular, the latter is used for contention-oriented initial network entry. Multiple UEs may perform random access simultaneously through the same channel and contention resolution is achieved by exploiting the cross correlation property of random access codes. Theoretically, random access codes provide orthogonality among UEs. However, it is susceptible to the channel characteristics in the multipath fading environment. This paper will analyzed the performance of non-synchronized random access based on SC-FDMA with various channel environments. It will be the guideline in designing LTE uplink system. |
| キーワード |
(和) |
/ / / / / / / |
| (英) |
SC-FDMA / LTE / Random access / / / / / |
| 文献情報 |
信学技報, vol. 107, no. 147, RCS2007-52, pp. 139-144, 2007年7月. |
| 資料番号 |
RCS2007-52 |
| 発行日 |
2007-07-12 (RCS) |
| 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 |
RCS2007-52 |