T. Matsumoto et H. Ishio, Multiple-access optical network architecture employing a wavelength-and-network-division technique: MANDALA, IEICE TR CO, E82B(9), 1999, pp. 1439-1445
A novel multiple-access optical network architecture is presented that not
only employs the WDM technique but also divides networks. The subnetworks a
re connected to each other via a wavelength-dependent interconnection netwo
rk, and pairs of subnetworks are optically linked with different combinatio
ns for each wavelength. Through an analysis of the throughput and delay for
the slotted ALOHA protocol, the architecture is confirmed to be improved f
rom the conventional one that employs only the WDM technique. For example,
the improvement ratio of the throughput for a four-wavelength network is 2.
4, and that for an eight-wavelength network is 4.4.