Multi-Rate and QoS Differentiation in Optical Code Division Multiple Access Networks

Sahuguède, Stéphanie; Morelle, Mikaël; Julien-Vergonjanne, Anne; Cances, Jean-Pierre

doi:10.1109/ccnc08.2007.135

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…Since optical code division multiple access (OCDMA) has the features of asynchronous access, soft-capacity, good security and so on, it is an alternative for next generation passive optical networks (PON) [1,2,3]. An ) 1 , , ( K F optical orthogonal code (OOC) is a family of (0,1)-sequences with desired auto-and cross-correlation properties, it is considered as optimal address code for OCDMA.…”

Section: Introductionmentioning

confidence: 99%

Discussion on Construction of OCDMA PON Address Code-(<i>F,K</i>,2) Optical Orthogonal Codes

Huang

Wang

2011

AMR

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Optical code division multiple access (OCDMA) passive optical network (PON) can find wide applications in the next optical access network. One of its key techniques of is construction of address code. Aiming at the facts that(F,K,1) optical orthogonal code (OOC) possesses good performance but capacity is small, and number of users in OCDMA PON is not very big thereafter OOC auto-correlation or cross-correlation may not be very strict,(F,K,2) OOC can be used as address codes for OCDMA PON. In this paper, the method of constructingOOC based on block design is discussed. The algorithm of construction (F,K,2) of OOC from block design is presented and simulated; several groups of(F,K,2) OOC are gained. The results show that the algorithm has good astringency and simplicity. It can construct(F,K,2) OOC effectively. It is feasible.

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Section: Introductionmentioning

confidence: 99%

Discussion on Construction of OCDMA PON Address Code-(<i>F,K</i>,2) Optical Orthogonal Codes

Huang

Wang

2011

AMR

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OCDMA Code Design for BER and Data Rate Differentiation in Beat Noise Corrupted Systems

Sahuguède¹,

Julien-Vergonjanne²,

Cances³

2010

2010 IEEE Global Telecommunications Conference GLOBECOM 2010

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International audienceUsing incoherent Optical Code Division Multiple Access (OCDMA) technique has recently attracted much interest since it appears to be not only a simple solution to provide user differentiation but also to perform service differentiation. The main limitation usually taken into account in the theoretical performance evaluation is Multiple Access Interference (MAI) linked to the fact that code sequences are unipolar and thus not strictly orthogonal. However, due to MAI and to the fact that the nature of the optical regime is not perfectly incoherent, beat noise constitutes another important limitation. We focus in this paper on multi-weight two dimensional (2-D) code sequences, which permits providing different BER services. We propose a theoretical statistical model to characterize MAI and beat noise impact. Thanks to this model, a theoretical error probability expression is established, taking into account both MAI and beat noise contribution in multimedia OCDMA systems. The design of multimedia codes satisfying targeted BERs can thus be done considering both limitations. The results permit highlighting the importance of beat noise consideration in the design process and the constraints imposed on optical source requirements

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Multi-Rate and QoS Differentiation in Optical Code Division Multiple Access Networks

Cited by 2 publications

References 14 publications

Discussion on Construction of OCDMA PON Address Code-(<i>F,K</i>,2) Optical Orthogonal Codes

Discussion on Construction of OCDMA PON Address Code-(<i>F,K</i>,2) Optical Orthogonal Codes

OCDMA Code Design for BER and Data Rate Differentiation in Beat Noise Corrupted Systems

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