[Need Help] Subgradient method for Lagrange dual decomposition (LDD)

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dark.cly

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Dear member,

Is there someone who has successfully working with sub-gradient method for LDD in OFDMA resource allocation problem? I have been struggling but still can not come up with primal feasible solution, i.e. the solution which satisfies all the given constraints. For example throughput maximization under maximal power and minimum user rate requirements constraints.

I would like to kindly ask further if there is someone who successfully worked with this problem.

Thank you,
 

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