Abstract
Wavelength-Division Multiplexing (WDM) offers the potential to support many concurrent transmissions on a single optical fiber. However, for multiuser packet communications with unpredictable user demands (e.g., in a local or metropolitan area network), the coordination and control of access to the WDM channels is difficult. With tunable transmitters and fixed-tuned receivers, the Protection-Against-Collision (PAC) circuit solves this media access problem by allowing a packet access to the network only if the destination channel is available. In geographically-distributed applications the maximum achievable throughput (normalized to the transmission rate) is typically between 0.4 and 0.5 per channel. In a centralized switch, the (normalized) maximum achievable throughput can approach 0.8 per channel.
Original language | English |
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Pages (from-to) | 931-943 |
Number of pages | 13 |
Journal | Computer Networks and ISDN Systems |
Volume | 26 |
Issue number | 6-8 |
DOIs | |
State | Published - Mar 1994 |
Keywords
- Broadcast star network
- Collision-avoidance switch
- Optical switching
- Packet switching
- Wavelength-division multiplexing