Performance analysis of an optical CDMA MAC protocol with variable-size sliding window

Mohamed, Mohamed A.; Shalaby, Hossam M. H.; El-Badawy, E.-S.A.

doi:10.1109/jlt.2006.881839

Cited by 8 publications

(5 citation statements)

References 22 publications

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“…The first category is the design and the performance analysis of code-based optical routers and switches in all-optical switching networks [115][116][117][118][119][120][121][122]. In addition to the core routing networks, many researchers have demonstrated and studied the performance and effectiveness of the OCDMA applications in local area and access networks, which constitute the second category [123][124][125][126][127][128][129][130][131][132][133][134][135][136][137][138]. And finally the third category consists of some emerging research to devise, analyze, and study the feasibility of employing OCDMA to set up wireless optical networks for both indoor and free-space environments [139][140][141][142][143][144][145][146][147][148].…”

Section: Applications Of Ocdma In Data Networkmentioning

confidence: 99%

“…There are many research groups that have addressed the design, and have examined the network or data link layer issues, and have proposed novel protocols for fiberbased networks [123][124][125][126][127][128][129][130][131][132][133][134][135][136][137][138]. Hsu and Li [123] have examined OCDMA techniques in a slotted packet network, with both time-and frequency-hopping schemes.…”

Section: B Ocdma-based Fiber Lan and Access Networkmentioning

confidence: 99%

“…In 2003, Shalaby began a series of articles on the performance and the protocols of the data link layer for an OCDMA packet network using OOCs [128][129][130][131]. First, he suggested two different protocols, namely, with and without pretransmission coordination [128].…”

Section: B Ocdma-based Fiber Lan and Access Networkmentioning

confidence: 99%

“…However, it was shown in [130] that the link layer can attain better performance utilizing selective retransmission in the case of packet loss, but the protocol is more complicated and requires more buffer capacity in both receiver and transmitter. In the continuation of the above research in [131] an OCDMA medium access control (MAC) protocol is suggested that supports variable size window in the link layer to transmit variable length data employing error control codes. The authors have presented an accurate analysis of the proposed MAC protocol and concluded that the sliding window with variable size algorithm can enhance the system performance.…”

Section: B Ocdma-based Fiber Lan and Access Networkmentioning

confidence: 99%

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Emerging OCDMA communication systems and data networks [Invited]

Salehi

2007

J. Opt. Netw.

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I present an in-depth review of the trends and the directions taken by researchers worldwide in optical code-division multiple-access (OCDMA) systems. I highlight those trends and features that I believe are essential to the successful introduction of various OCDMA techniques in communication systems and data networks in the near future. In particular I begin by giving a comprehensive review of the construction of optical orthogonal codes (OOCs). Specifically I discuss the recently developed algorithms that are based on matrix algebra, which simplify and enhance the efficiencies of algorithms in OOC generation. In communication systems studies I first focus on and discuss various OCDMA techniques, such as incoherent and coherent OCDMA. A comprehensive discussion takes place on all important aspects of each OCDMA technique. In particular, I elaborate on enabling technologies that are needed prior to full scale consideration of OCDMA in communication systems. For incoherent OCDMA the technique is categorized into two distinguished techniques, namely, 1D and 2D OCDMA. For each technique I discuss the various receiver structures proposed to date. In particular I discuss a recently introduced powerful receiver structure based on optical AND logic gate elements. Based on this receiver structure I conclude that in many practical applications, OOCs with a cross-correlation value equal to 2 or 3, which have a much larger cardinality compared to OOCs with = 1, perform much better. Many fundamental issues, including architectural consideration of multiple amplifiers, various acquisition algorithms, and advanced signaling methods, such as pulse position modulation, are discussed. For coherent OCDMA or spectrally encoded ultrashort light pulse OCDMA, I begin by having an indepth discussion on the key and enabling technologies that are essential in the successful implementation of this very important and extremely powerful technique. In particular on the encoder-decoder side I present discussions on various key device technologies such as virtually imaged pulsed array, fiber Bragg gratings, and arrayed waveguide gratings. On the receiver side I elaborate on various nonlinear detection schemes used in such OCDMA networks. I will present an analytical framework on the above nonlinear detection schemes and discuss their pros and cons. I extend the discussion to various data networks. In particular I will discuss applications such as wireless OCDMA LAN, free-space OCDMA, fiber-to-the-home, and other code-divisionmultiple-access-based packet communication networks using label addressing and processing techniques to indicate the directions and the applications for which OCDMA systems are considered. It is believed that in the not so distant future OCDMA, once fully developed and matured, will be an inseparable part of advanced optical communication systems and networks, due to its various desirable features and functionalities. clever encoding and decoding mechanisms that are essential for future all-optical communication systems an...

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Section: Applications Of Ocdma In Data Networkmentioning

confidence: 99%

Section: B Ocdma-based Fiber Lan and Access Networkmentioning

confidence: 99%

Section: B Ocdma-based Fiber Lan and Access Networkmentioning

confidence: 99%

Section: B Ocdma-based Fiber Lan and Access Networkmentioning

confidence: 99%

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Emerging OCDMA communication systems and data networks [Invited]

Salehi

2007

J. Opt. Netw.

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“…First, it is necessary to calculate the packet throughput for each distribution (Poisson (3.43), binomial (3.47) and Markov chain (3.55)) since the average packet delay is expressed as the ratio between the offered load and packet throughput [110]. Once the packet throughput is obtained, the delay of the flexible OCDMA network for Jclass under Poisson or binomial approaches is obtained follows…”

Section: Packet Delaymentioning

confidence: 99%

Next generation access networks: flexible OCDMA systems and cost-effective chaotic VCSEL sources for secure communications

Raddo¹

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Firstly, I would like to thank God for everything in life. I would like to thank my parents, Roberto Raddo and Abgail Raddo as well as my girlfriend Anne-Sophie for their constant support, love, encouragement, and total understanding during my long doctoral journey. I would like to thank Ben-Hur V. Borges, Heidi Ottevaere, Idelfonso T. Monroy, and Martin Virte for their contributions to my doctoral research as my academic advisors. I am grateful for their continuous guidance during this long and challenging path, for their helpfulness, confidence, and advice. Special thanks go to Hugo Thienpont and Heidi Ottevaere for the unique offered opportunity to develop part of the doctoral research in Brussels at B-PHOT. I would like to express my gratitude to my great friends: Israel Lot (thanks also for the book's cover), Larissa Lima (thanks also for helping me out so many times),

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Architectures, Protocols and Applications for OCDMA Networks

Optical Code Division Multiple Access Communication Networks

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Performance analysis of an optical CDMA MAC protocol with variable-size sliding window

Cited by 8 publications

References 22 publications

Emerging OCDMA communication systems and data networks [Invited]

Emerging OCDMA communication systems and data networks [Invited]

Next generation access networks: flexible OCDMA systems and cost-effective chaotic VCSEL sources for secure communications

Architectures, Protocols and Applications for OCDMA Networks

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