| Authors |
B. Mongol, T. Yamazato, H. Okada, M. Katayama |
| Title |
MIMO Zero-forcing Equalizer for BFDM/OQAM Systems in Time-Frequency Dispersive Channels |
| Authority |
IEICE Transactions on Fundamentals, vol.E89-A, no.11, pp.3114-3122 |
| Summary |
Pulse-shaping OFDM is well-known that it performs well in a mobile environment compared with conventional OFDM. However, in a highly mobile environment intersymbol and intercarrier interferences (ISI/ICIs) increase and can no longer be neglected. These ISI/ICIs deteriorate the performance of the systems. Proper channel equalization is needed for further improvement of the systems. In this paper, a more general case, namely Biorthogonal Frequency Division System based on Offset QAM (BFDM/OQAM) is considered. We propose a multi-input multi-output (MIMO) transversal filter to equalize the time-frequency dispersive channel. Tap weights are calculated using the zero-forcing (ZF) algorithm. We also propose maximum-likelihood channel estimator and its low-complexity version. The proposed system can significantly improve the performance of BFDM/OQAM systems in the highly mobile environment. |
| 年月 |
2006年11月 |
| DOI/Handle |
DOI:10.1093/ietfec/e89-a.11.3114
|
| 研究テーマ |
4G/5G/次世代移動体通信システム
|
| 言語 |
英語 |
| 原稿/プレゼン資料 |
 / 無し (ローカル限定) |
