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Energy efficiency is increasingly important for wireless cellular systems due to the limited battery resources of mobile clients. While modern cellular standards emphasize low client battery consumption, existing techniques do not explicitly focus on reducing power that is consumed when a client is actively communicating with the network. Based on high data rate demands of modern multimedia applications,...
This paper considers the problem of minimizing outage probabilities in the downlink of a multiuser, multicell orthogonal frequency division multiple access (OFDMA) cellular network with frequency selective fading, imperfect channel state information, and frequency hopping. The task is to determine the allocation of powers and subcarriers for users to ensure that the user outage probabilities are as...
Fair OFDMA (orthogonal frequency division multiple access) based subcarrier allocation algorithm is proposed. The method includes adaptive modulation and power control per subcarrier, considering actual channel state information between users and base station. To heighten dasiafairnesspsila, preliminary power control (PPC) is executed before efficient allocation of radio resources.
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