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This paper addresses carrier-based inter-cell interference coordination (CB-ICIC) among LTE femtocells operating on a single carrier. CB-ICIC is in many ways linked to the widely investigated dynamic channel assignment problem, which is often studied in the context of graph coloring. The investigation revolves around the sensible definition of the underlying graph, i.e. the network model, rather than focusing on the coloring algorithms and their properties. Ultimately, we posit that improper online graph-coloring suffices and is actually preferable. In short, settling for less-than-optimal configurations avoids uncontrolled service interruptions. Such disruptions tend to raise understandable concerns when it comes to fully autonomous selection of operational CCs. Our results dispel such concerns by showing that conservative methods can achieve most of the benefits of unrestricted off-line coloring algorithms with a very modest number (2-3) of CCs to choose from.
|Title of host publication||2012 IEEE 75th Vehicular Technology Conference (VTC Spring)|
|Number of pages||5|
|Publication date||Apr 2012|
|Publication status||Published - Apr 2012|
|Event||2012 IEEE 75th Vehicular Technology Conference - Yokohama, Japan|
Duration: 6 May 2012 → 9 May 2012
|Conference||2012 IEEE 75th Vehicular Technology Conference|
|Period||06/05/2012 → 09/05/2012|
|Series||I E E E V T S Vehicular Technology Conference. Proceedings|
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- 2 Finished
03/10/2011 → 31/10/2012