Time-slot coding scheme for multiple access in indoor optical wireless communications

被引：8

作者：

Liang, Tian ^{[1
]}

Wang, Ke ^{[2
,3
]}

Lim, Christina ^{[1
]}

Wong, Elaine ^{[1
]}

Song, Tingting ^{[1
]}

Nirmalathas, Ampalavanapillai ^{[1
]}

机构：

[1] Univ Melbourne, Dept Elect & Elect Engn, Melbourne, Vic 3010, Australia

[2] RMIT Univ, Sch Engn, Melbourne, Vic 3001, Australia

[3] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA

来源：

OPTICS LETTERS | 2016年 / 41卷 / 22期

关键词：

SYSTEM;

D O I：

10.1364/OL.41.005166

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This letter proposes what we believe is a novel time-slot coding (TSC) scheme to provide optical wireless communications to multiple users simultaneously with limited multiuser interference. We studied the proposed TSC experimentally and our results show that the code alignment tolerance, due to imperfect timing during the code generation process in practice, is 90.2%, 91.8%, and 93.1% with 4-QAM modulation at the received optical power of -22 dBm, -20 dBm, and -18 dBm, respectively. Furthermore, we also demonstrated a proof-of-concept experiment for simultaneous wireless connectivity for up to five users at multiple gross data rates (0.5 Gbps, 1 Gb/s, 1.6 Gb/s, 2 Gb/s, and 2.5 Gb/s). (C) 2016 Optical Society of America

引用

页码：5166 / 5169

页数：4

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