Energy-efficient multidimensional Hellinger modulation for SPAD-based optical wireless communications

被引：5
|
作者：
Si-Ma, Ling-Han [1 ]
Zhang, Jian [1 ]
Wang, Bin-Qiang [1 ]
Zhang, Yan-Yu [1 ]
机构：
[1] Natl Digital Switching Syst Engn & Technol Res Ct, Zhengzhou 450000, Henan, Peoples R China
来源：
OPTICS EXPRESS | 2017年 / 25卷 / 19期
关键词：
CAPACITY-ACHIEVING DISTRIBUTIONS; TRELLIS-CODED MODULATION; REDUNDANT SIGNAL SETS; TIME CODES; SYSTEM; CONSTELLATIONS; RECEIVER;
D O I：
10.1364/OE.25.022178
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Recently, the single photon avalanche diode optical wireless communication (SPAD OWC) has attracted much attention due to its potential underwater applications. For such system, the channel noise is additive Poisson noise (APN) rather than the commonly encountered additive white Gaussian noise (AWGN) and the corresponding maximum likelihood (ML) detection is hard to provide a useful insight into energy-efficient signal design. By using the previously proposed Hellinger distance design criterion, we design an energy-efficient multi-dimensional constellation within the nonnegative integer set by minimizing the average optical power for a fixed minimum Hellinger distance. Comprehensive simulations indicate that our designed constellation can substantially outperform the currently available pulse amplitude modulation (PAM) and squared PAM for SPAD OWC systems. (C) 2017 Optical Society of America
引用
收藏
页码：22178 / 22190
页数：13
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