Wide-dynamic-range technologies for a fiber-optic microcell radio system

Ohmoto, R.; Ohtsuka, Hiroyuki; Araki, K.

doi:10.1364/ofc.1995.thf3

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1995

1996

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Cited by 2 publications

(2 citation statements)

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“…An electrical dynamic range of 46 dB has been achieved in the demonstration. More recently, a dynamic range of over 70 dB has been achieved for the same type of application [167][168][169].…”

Section: Wdma/scmamentioning

confidence: 99%

Multiple Access Techniques for Fiber-Optic Networks

Mestdagh¹

1996

Optical Fiber Technology

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Section: Wdma/scmamentioning

confidence: 99%

Multiple Access Techniques for Fiber-Optic Networks

Mestdagh¹

1996

Optical Fiber Technology

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“…There is a growing interest in the application ofoptical technologies to microcellular and picocellular radio (1)(2)(3)(4)(5)(6). Most ofthe investigations have concentrated on analog systems.…”

Section: Thitroductionmentioning

confidence: 99%

Applications of optical code division multiple access (CDMA) to wireless communication

Mendez¹,

Lambert

Morookian

et al. 1995

Proceedings of SPIE

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The theoretical foundations for code division multiple access (CDMA) are similar for microwave and optical implementations, and the advantages ofthis form ofmultiple access communications are similar, also. The advantages include the ability to support bursty, asynchronous, concurrent communications and to tolerate multipath interference. Optical implementations of CDMA are different in that they tend to require guided lightwaves (e.g., fiber cable), the coding is imposed on the intensity rather than on the amplitude ofthe lightwave, the various codes are not strictly orthogonal, and the receiver uses direct detection. This gives rise to the term "optical CDMA". These pseudo-orthogonal CDMA codes usually require wide bandwidths to represent the encoded data, so that optical CDMA is sometimes considered bandwidth inefficient. Two classes ofoptical CDMA codes which are sufficiently bandwidth efficient for wireless communications applications are (1) incoherent spectral CDMA and (2) optical matrix CDMA. In addition, the wireless communications applications may need to support various data rates (for the various services), and these two classes of optical CDMA are both very tolerant of data rate variations. An appropriate topology for applications such as a local area network (LAN) is a star and, for multimedia data distribution, a tree.

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Wide-dynamic-range technologies for a fiber-optic microcell radio system

Cited by 2 publications

References 3 publications

Multiple Access Techniques for Fiber-Optic Networks

Multiple Access Techniques for Fiber-Optic Networks

Applications of optical code division multiple access (CDMA) to wireless communication

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