Gerardo A. Castañón

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We discuss the introduction/implementation of optical IP routers, then we introduce a novel scheduling algorithm incorporating void filling and aimed at optical routing of asynchronous, variable packet length packets. We describe its structure and discuss the complexity issues. Albeit introduced with the purpose of cancelling the expensive optical(More)
A high-speed optical packet switching node using the WDM all optical switch structure is studied in this paper. Teletra c performance of an optical IP packet router is simulated under the self-similar (bursty) tra c condition. Four di erent control algorithms are investigated for the performance and complexity. A simple round-robin algorithm cannot attain(More)
While transparent WDM optical networks become more and more popular as the basis of the Next Generation Internet (NGI) infrastructure, such networks raise many unique security issues. The existing protection schemes which only consider unintended failures and only rely on postmortem detection and reaction are not sufficient to provide security assurance for(More)
The performance of packet-switching wavelength routed optical networks critically depends on packet contentions at the intermediate routers. This paper shows through simulations that de ̄ection routing is an e€ective technique for packet-switching wavelength routed optical networks with irregular meshed topologies. It is shown that multiple path routing(More)
Tratflc Matrlx AbstractA detailed analytical traffic model for alloptical wavelength division multiplexing (WDM) photonic packet switched networks is presented and the requirements for buffer size, and link dimensions are analyzed. This paper shows that due to the topology, packets may generate traffic bottlenecks produced by a tendency of the routing(More)
The teletraffic/transmission performance of regular two-connected multi-hop cell-switching optical networks in uniform traffic under hybrid store-and-forward is presented. Manhattan Street (MS) Network and ShuffleNet (SN) are compared in terms of average queueing delay, queue size, transit delay, throughput, and bit error rate (BER) for intensity(More)
The transmission performance of regular two-connected multi-hop transparent optical networks in uniform traffic under hot-potato, single-buffer deflection routing schemes is presented. Manhattan Street (MS) Network and ShuffleNet (SN) are compared in terms of bit error rate (BER) and packet error rate (PER) both analytically and by simulation. We implement(More)
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