DocumentCode :
26248
Title :
2 
2 MIMO OFDM-RoF System Employing LMS-Based Equalizer With I/Q Imbalance Compensation at 60 GHz
Author :
Hou-Tzu Huang ; Po-Tsung Shih ; Chun-Ting Lin ; Yu-Hsuan Cheng ; Wan-Ling Liang ; Chun-Hung Ho ; Chia-Chien Wei ; Ng´oma, Anthony
Author_Institution :
Inst. of Photonic Syst., Nat. Chiao Tung Univ., Tainan, Taiwan
Volume :
6
Issue :
3
fYear :
2014
fDate :
Jun-14
Firstpage :
1
Lastpage :
7
Abstract :
Multiple-input-multiple-output (MIMO) technology is a promising method to increase spectral efficiency in wireless communications. In this paper, a 60-GHz orthogonal frequency-division multiplexing radio over fiber (OFDM-RoF) system employing 2 × 2 MIMO wireless technology is demonstrated. With the proposed equalizer employing least mean squares (LMS) algorithm, MIMO channel mixing and I/Q-mismatch can be compensated simultaneously. 16-QAM and 32-QAM OFDM signal transmissions under forward error correction (FEC) threshold ( 1×10-3) are demonstrated. A data rate of 76.3 Gb/s can be achieved with a bit-loading algorithm over 25-km fiber transmission and 3.5-m wireless transmission.
Keywords :
MIMO systems; OFDM modulation; least squares approximations; quadrature amplitude modulation; radio-over-fibre; 16-QAM OFDM signal transmissions; 32-QAM OFDM signal transmissions; I/Q imbalance compensation; LMS-based equalizer; MIMO OFDM-RoF system; MIMO wireless technology; bit-loading algorithm; distance 25 km; distance 3.5 m; forward error correction threshold; frequency 60 GHz; least mean squares algorithm; multiple-input-multiple-output technology; orthogonal frequency-division multiplexing radio over fiber system; Adaptive optics; MIMO; OFDM; Optical fibers; Optical receivers; Wireless communication; 60 GHz; Fiber optics communications; LMS; MIMO; radio-over-fiber;
fLanguage :
English
Journal_Title :
Photonics Journal, IEEE
Publisher :
ieee
ISSN :
1943-0655
Type :
jour
DOI :
10.1109/JPHOT.2014.2310222
Filename :
6762907
Link To Document :
