Experimental study of wideband in-band full-duplex communication based on optical self-interference cancellation

被引：35
|
作者：
Zhang, Yunhao [1 ]
Xiao, Shilin [1 ]
Yu, Yinghong [1 ]
Chen, Cao [1 ]
Bi, Meihua [1 ,2 ]
Liu, Ling [1 ]
Zhang, Lu [1 ,3 ]
Hu, Weisheng [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Elect Engn, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China
[2] Hangzhou Dianzi Univ, Coll Commun Engn, Xiasha Gaojiaoyuan 2rd St, Hangzhou 310018, Zhejiang, Peoples R China
[3] Royal Inst Technol KTH, Sch ICT, ONLab, S-16440 Kista, Stockholms, Sweden
来源：
OPTICS EXPRESS | 2016年 / 24卷 / 26期
关键词：
DESIGN; SYSTEM;
D O I：
10.1364/OE.24.030139
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we experimentally demonstrate and study a wideband in-band full-duplex (IBFD) wireless communication system based on optical self-interference cancellation (SIC). The optical SIC performances based on antennas for broadband IBFD are firstly evaluated within high frequency bands (> 10GHz). In this system, two electro-absorption-modulated lasers (EMLs) and a balanced photo-detector (BPD) are employed to remove the wideband self-interference within received wireless signal. By theoretical derivation and experimental verification, the impact factors of SIC are analyzed, especially for non-flatness wireless channel case. Experimental results show more than 30-dB cancellation depth in 100-MHz bandwidth with employment of horn antennas. Besides, IBFD transmission performance based on OFDM signals for different bandwidth with 11.15-GHz center frequency is also demonstrated, and similar to 52.2-dB center dot Hz(2/3) spurious-free dynamic range (SFDR) is obtained. (C) 2016 Optical Society of America
引用
收藏
页码：30139 / 30148
页数：10
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