New PPM-CDMA hybrid for indoor diffuse infrared channels

New PPM-CDMA hybrid for indoor diffuse infrared channels
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用于室内漫射红外通道的新型 PPM-CDMA 混合通道

DOI:
10.1049/el:19941136
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发表时间:
1994
期刊:
影响因子:
--
通讯作者:
R. Cryan
R. Cryan
中科院分区:
--
文献类型:
--
作者:
J. Elmirghani;R. Cryan

文献摘要

被引文献

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在室内红外信道的背景下,提出并研究了一种使用光正交码(OOC)的原始混合脉冲位置调制码分多址(PPM-CDMA)通信技术。在最佳 PPM 阶数和所考虑的参数范围内,混合方案的比特率是在带宽限制下使用传统开关键控 (OOK) CDMA 所能实现的比特率的五倍以上。给出了由于 OOC 互相关引起的误报错误的原始结果,并指定了最小化这些错误的最佳系统操作参数。
An original hybrid pulse position modulation code division multiple access (PPM-CDMA) communication technique that uses optical orthogonal codes (OOCs) is proposed and studied in the context of the indoor infrared channel. At the optimum PPM order and over the range of parameters considered, the hybrid is shown to achieve more than five times the bit rate achievable using conventional on off keying (OOK) CDMA under bandwidth constraints. Original results are presented for the false alarm errors due to the OOC crosscorrelations, and the optimum system operating parameters that minimise these errors are specified.