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Ultra-fast all-optical packet-switched routing with a hybrid header address correlation Scheme

By Ming-Feng Chiang, Zabih Ghassemlooy, Wai Pang Ng, Hoa Le Minh and Chao Lu


The paper presents a new node architecture for an\ud all-optical packet router employing multiple pulse position\ud modulation (PPM) routing table with a hybrid packet header\ud correlation scheme. Most existing routing tables within a node contain a large number of entries, thus resulting in a long packet header address correlation time before delivering the incoming packet to its destination. In the proposed multiple PPM routing tables (PPRTs) the packet header address is based on the binary and PPM formats which leads to a much reduced routing table size. The packet header address correlation is carried out using only a single optical AND gate, thus offering reduced system complexity. It is also shown that the proposed scheme offers\ud unicast/multi-cast/broadcast transmitting capabilities. The\ud propose scheme is simulated and its characteristics are investigated. The output inter-channel crosstalk (CXT) of up to - 18 dB and output packet power fluctuation of 2 dB have been achieved, which largely depend on the guard time between the arriving packets

Topics: H600
Publisher: IEEE
Year: 2008
OAI identifier:

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