Characteristics and Performance of Image Sensor Communication

被引：25

作者：

Huang, Wei ^{[1
]}

Xu, Zhengyuan ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Univ Sci & Technol China, Sch Informat Sci & Technol, Key Lab Wireless Opt Commun, Hefei 230027, Anhui, Peoples R China

[2] Tsinghua Univ, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China

来源：

IEEE PHOTONICS JOURNAL | 2017年 / 9卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Image sensor communication; mixed signal-dependent Gaussian noise; capacity; VISIBLE-LIGHT COMMUNICATION; GAUSSIAN CHANNELS; CAPACITY; NOISE; CHALLENGES; SYSTEM;

D O I：

10.1109/JPHOT.2017.2681660

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A complementary metal-oxide semiconductor (CMOS) image sensor can be used for communication, in addition to imaging. This paper investigates noise characteristics and system performance for CMOS image sensor communication. Different signal-dependent and independent noise sources are categorized and comprehensively analyzed in conjunction with sensor measurements. Accordingly, a unified channel model in the pixel-matched case is proposed, and the communication signal-to-noise ratio is defined and demonstrated in different parameter settings. Moreover, the channel capacity with mixed noise and bounded input is derived and is proven to be achievable by a discrete input distribution of finite number of probability mass points. Simulation shows that capacity of more than 7 b/s/Hz per pixel or 8-10 b/s/Hz per block of multiple pixels is achievable.

引用

页数：19

共 26 条

[1] Capacity-achieving probability measure for conditionally Gaussian channels with bounded inputs. [J].