On the capacity of indoor optical wireless communications

被引：5
|
作者：
Sethakaset, Ubolthip [1 ]
Gulliver, T. Aaron [1 ]
机构：
[1] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC V8W 3P6, Canada
来源：
IEEE COMMUNICATIONS LETTERS | 2006年 / 10卷 / 07期
关键词：
capacity; optical wireless communications (OWC); pulse-time modulation (PTM);
D O I：
10.1109/LCOMM.2006.060195
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this letter, the capacity of an optical wireless communications system,in an indoor environment is investigated. We consider various modulation schemes, e.g. pulse-position modulation (L-PPM), differential pulse-position in dulation (L-DPPM) and differential amplitude pulse-position modulation (A x L-DAPPM). It is shown that L-DPPM provides twice the channel capacity of L-PPM. Moreover, A x L-DAPPM has a higher capacity than L-DPPM. The capacity of PPM is degraded more by multipath dispersion than that of DPPM and DAPPM.
引用
收藏
页码：552 / 554
页数：3
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