Abstract
Experiments on a transparent, constant-gain-controlled amplifier ring
network show that channel-power coupling can lead to instability in channel
power control at add drop nodes. This instability can cause power oscillations
due to competing adjustments on multiple nodes. Sequencing channel power tuning
on each node is shown to result in stable power control. A distributed node
scheduling algorithm that dynamically defines domains for independent node
control is demonstrated through network simulations.
© 2008 IEEE
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