Proportional Fair Scheduling Using Capacity with Outage in Rayleigh Fading CDMA Wireless Networks
Computational Intelligence, Modelling and Simulation（2011）
Abstract
In this paper, we consider the utility maximization problem for proportional fairness using capacity with outage. Firstly, we formulate a log utility maximization problem in case of perfect orthogonal channels. With the gradient algorithm of convex optimization problem, we present the implementation algorithm for maximizing utility of capacity with outage. Also, we extend the result to the case with interference due to non-orthogonal channels. Finally, with the information of an outage indicator, we propose the estimation algorithm for average signal-to-interference-noise ratio (SINR) of wireless links. From numerical results, we confirm that the utility of capacity with outage is maximized and the average performance of proposed algorithm converges to the desired maximizing point.
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Key words
estimation algorithm,average performance,radio links,outage indicator,scheduling,rayleigh fading cdma wireless network,radiofrequency interference,proportional fairness,convex optimization problem,rayleigh fading,outage capacity,sinr,wireless link,convex programming,rayleigh fading cdma wireless,utility maximization problem,radio networks,gradient algorithm,nonorthogonal channel,implementation algorithm,proportional fair scheduling,optimization,signal-to-interference-noise ratio,code division multiple access,gradient methods,channel capacity,interference suppression,log utility maximization problem,proposed algorithm converges,average signal-to-interference-noise ratio,rayleigh channels,interference,signal to noise ratio,wireless communication
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