A power allocation algorithm for OFDM Gaussian interference channels

Bouton, Eric; Ciblat, Philippe; Belfiore, Jean-Claude

doi:10.1109/spawc.2010.5671031

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Sum-rate Maximization1

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Cited by 2 publications

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“…This zero duality gap property has been applied successfully in some other works, e.g. [11]. The update of the Lagrange dual variable can be done by a bisection method.…”

Section: Sum-rate Maximizationmentioning

confidence: 95%

Resource allocation for downlink two-user OFDMA systems with wireless network coding

Tarasak

Sun

2011

2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications

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We first address a sum-rate maximization problem under a sum-power constraint. By introducing the concept of virtual user, we solve the problem by using the Lagrange dual method. We then look into a sum-power minimization problem under sum-rate constraints. The Lagrange dual method and an exhaustive search method are proposed, which achieve similar performance, but the former has a lower complexity. Our simulation shows about 3-dB power saving of our scheme over an OFDMA system without network coding.

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“…This zero duality gap property has been applied successfully in some other works, e.g. [11]. The update of the Lagrange dual variable can be done by a bisection method.…”

Section: Sum-rate Maximizationmentioning

confidence: 95%