Dual-amplitude pulse interval modulation for optical wireless communications

被引:2
|
作者
Zhang, K [1 ]
Zhang, H [1 ]
Gong, M [1 ]
Yan, P [1 ]
Yang, X [1 ]
机构
[1] Tsing Hua Univ, Digital Photon Lab, Dept Precis Instruments, Beijing 100084, Peoples R China
关键词
optical wireless communication; optical links; multipath dispersion; modulation; dual-amplitude pulse interval modulation; power spectral density;
D O I
10.1117/1.1595667
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We propose a novel dual-amplitude pulse interval modulation (DAPIM) for optical wireless communications. We present the symbol structure, spectral properties, and the expression for bandwidth requirement, slot, and packet error rates, and optical power requirements of DAPIM in the absence of and in the presence of multipath dispersion. DAPIM shows a better compromise between bandwidth and power requirements compared with on-off keying, pulse-position modulation, and pulse interval modulation. DAPIM with M=5 and M=6 is attractive in terms of optical power and bandwidth requirements on a nondispersive channel. (C) 2003 Society of Photo-Optical Instrumentation Engineers.
引用
收藏
页码:2721 / 2726
页数:6
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