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{{technical|date=July 2016}}
'''Cross-layer optimization''' is an escape from the pure [[waterfall model|waterfall]]-like concept of the [[OSI model|OSI communications model]] with virtually strict boundaries between layers. The cross layer approach transports feedback dynamically via the layer boundaries to enable the compensation for e.g. overload, latency or other mismatch of requirements and resources by any control input to another layer but that layer directly affected by the detected deficiency.<ref>http://www.ece.purdue.edu/~shroff/Shroff/journal/LSS06.pdf</ref><ref>http://netlab.caltech.edu/pub/papers/tcpip-ton2004.pdf</ref>
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