標題: | Theoretical and Experimental Investigation of a 2 x 2 MIMO OFDM Radio-Over-Fiber System at 60-GHz With I/Q Imbalance Compensation |
作者: | Ho, Chun-Hung Lin, Chun-Ting Lu, Tsung-Hung Huang, Hou-Tzu Shih, Boris (Po-Tsung) Wei, Chia-Chien Ng\'oma, Anthony 光電系統研究所 Institute of Photonic System |
關鍵字: | I/Q imbalance;MIMO;optical fiber communication;wireless communication |
公開日期: | 15-十月-2014 |
摘要: | This paper investigates the efficacy of two methods for compensating I/Q imbalance, which causes serious performance problems in wideband (6.98-GHz spectrum) millimeter-wave systems employing MIMO signal transmission. A 60-GHz orthogonal frequency division multiplexing (OFDM) RoF system employing 2 x 2 MIMO technology is implemented using a commonly used training symbol arrangement and a proposed method. We experimentally demonstrate that the proposed training symbol arrangement performed significantly better than the commonly used approach. By combining the proposed training symbol arrangement with LMS I/Q compensation and bit-loading, we achieve an extremely high wireless data rate transmission of 75.211 Gb/s over both 50 km of standard single-mode fiber and 3.5-m wireless distance. The optical power penalty after 50-km fiber transmission was only similar to 1 dB. |
URI: | http://dx.doi.org/10.1109/JLT.2014.2325816 http://hdl.handle.net/11536/124145 |
ISSN: | 0733-8724 |
DOI: | 10.1109/JLT.2014.2325816 |
期刊: | JOURNAL OF LIGHTWAVE TECHNOLOGY |
Volume: | 32 |
Issue: | 20 |
起始頁: | 3901 |
結束頁: | 3909 |
顯示於類別: | 期刊論文 |