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INFOCOM
2008
IEEE

Self-Organizing Dynamic Fractional Frequency Reuse in OFDMA Systems

10 years 3 months ago
Self-Organizing Dynamic Fractional Frequency Reuse in OFDMA Systems
—We describe an algorithm for sub-carrier and power allocation that achieves out-of-cell interference avoidance through dynamic fractional frequency reuse (FFR) in downlink of cellular systems based on orthogonal frequency division multiple access (OFDMA). The focus in on the constant-bit-rate (CBR) traffic type flows (e.g., VoIP). Our approach is based on the continuous “selfish” optimization of resource allocation by each sector. No a priori frequency planning and/or inter-cell coordination is required. We show, both analytically (on a simple illustrative example) and by simulations (of a more realistic system), that the algorithm leads the system to “self-organize” into efficient frequency reuse patterns.
Alexander L. Stolyar, Harish Viswanathan
Added 31 May 2010
Updated 31 May 2010
Type Conference
Year 2008
Where INFOCOM
Authors Alexander L. Stolyar, Harish Viswanathan
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