Performance of diffused indoor optical wireless links employing neural and adaptive linear equalizers

被引：0
|
作者：
Ghassemlooy, Z. [1 ]
Rajbhandari, Sujan [1 ]
机构：
[1] Northumbria Univ, Opt Commun Res Grp, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England
来源：
2007 6TH INTERNATIONAL CONFERENCE ON INFORMATION, COMMUNICATIONS & SIGNAL PROCESSING, VOLS 1-4 | 2007年
关键词：
indoor optical wireless system; diffused link; neural equalizer; linear equalizer;
D O I：
暂无
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：
This paper presents a comparative study of two equalizers, the adaptive linear and the neural equalizer for indoor optical wireless (OW) links. Three modulation schemes representative of a range of modulation techniques widely adopted in indoor OW systems are chosen to investigate the effectiveness of the proposed equalizers. It is shown that on-off keying (OOK) modulation technique is least affected by the multipath induced intersymbol interference (ISI), while the pulse position modulation (PPM) scheme is the most severely affected. In case of highly diffused channel, the equalized digital pulse interval modulation (DPIM) outperforms the equalized PPM and there is little or no gain in using PPM compared to OOK.
引用
收藏
页码：611 / 616
页数：6
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