Iterative Power and Subcarrier Allocation for Maximizing WSMR in Cellular OFDMA Systems
(2010) 2010 8th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks (WiOpt) — Location: Avignon, France (31.May.2010)
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- Abstract
- We consider the resource allocation (RA) problem of maximizing the weighted sum of the minimal user rates (WSMR) of coordinated cells subject to a total power constraint at each base station (BS) in the downlink of a cellular orthogonal frequency division multi-access (OFDMA) system. In particular, the solution of this problem corresponds to a RA that guarantees similar rates to users in each cell. We propose a coordinate ascent (CA) based algorithm which alternatively updates the power allocation by solving a successive set of convex optimization problems with a duality-based numerical algorithm, and the subcarrier allocation by solving a mixed integer linear program for each cell. The effectiveness of the algorithm is illustrated by numerical experiments.
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Tao Wang, & Vandendorpe, L. (2010). Iterative Power and Subcarrier Allocation for Maximizing WSMR in Cellular OFDMA Systems. 2010 8th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks (WiOpt), 324-329. https://hdl.handle.net/2078.5/229938