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The quality aspect is not the only approach to tailor the cross-layer optimization strategy. The control adjusted to availability of limited resources is the first mandatory step to achieve at least a minimum level of quality. Respective studies have been performed and will continue <ref>http://www.nyman-workshop.org/2003/papers/Cross-Layer%20Optimization%20for%20Sensor%20Networks.pdf</ref>
== Adapting MAC scheduling based on
Communication systems that need to operate over media with non stationary background noise may benefit from having a close coordination between the [[Medium access control|MAC]] layer (which is responsible for scheduling transmissions) and the [[Physical layer|PHY]] layer (which manages actual transmission and reception of data over the media).
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