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As new application scenarios for multi-hop wireless networks emerge, there has been an effort to improve performance in these networks by leveraging available physical layer diversity in the form of multiple channels, radio-interfaces, antennas, etc. However, designing cross-layer protocols that are capable of addressing a wide range of heterogeneous hardware characteristics can be very challenging. Theoretical results on scheduling provide a valuable set of tools to understand the structure of good network control algorithms for diverse scenarios; but these usually involve highly idealized assumptions that hinder their applicability.
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