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Decentralized spectral resource allocation for OFDMA downlink of coexisting macro/femto networks using filled function method

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5 Author(s)
Benmesbah, L. ; Dept. of Electron. Eng., King''s Coll. London, London, UK ; Ling, B.W.K. ; Chandrasekhar, V. ; Chu, X.
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For an orthogonal frequency division multiple access (OFDMA) downlink of a spectrally coexisting macro and femto network, a resource allocation scheme would aim to maximize the area spectral efficiency (ASE) subject to constraints on the radio resources per transmission interval accessible by each femtocell. An optimal resource allocation scheme for completely decentralized deployments leads however to a nonconvex optimization problem. In this paper, a filled function method is employed to find the global maximum of the optimization problem. Simulation results show that our proposed method is efficient and effective.

Published in:

Communication Systems Networks and Digital Signal Processing (CSNDSP), 2010 7th International Symposium on

Date of Conference:

21-23 July 2010