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Selecting the optimal subset is highly beneficial to numerous developments in simulation optimization. This paper studies the problem of maximizing the probability of correctly selecting the top- $m$ designs out of $k$ designs under a computing budget constraint. We develop a new procedure which is more efficient and robust than currently existing procedures in the literature. We also provide an...
This paper considers a multi-cell OFDMA downlink system with several decode-and-forward (DF) relay stations (RSs) aiding the base station (BS) transmissions. The opportunistic DF protocol proposed in [1] is applied. The problem considered is the maximization of the system sum rate with a total power constraint in each cell. An iterative low-complexity resource allocation (RA) algorithm is proposed...
How to maximize the probability of correctly selecting the top-m designs out of k designs under a computing budget constraint is crucial in simulation optimization. We develop a new procedure to be more efficient and robust than existing ones. The asymptotic convergence rate of this new procedure achieves higher convergence rate than others in correct selection probability for subset selection problems...
The key issues in the design of a cross-layer optimization scheme for multiuser orthogonal frequency multiple access (OFDMA) systems are the optimal subcarrier, bit and rate distribution policies. In many recent researches, these allocation strategies are derived either through dynamic programming or via mathematical analysis. When the latter option is available, an additional iterative process is...
Equivalent bandwidth (EqB) is defined as the minimum service rate to be provided to a traffic buffer to guarantee a certain degree of quality of service (QoS) in terms of objective parameters (packet loss, delay, jitter). EqB techniques are usually obtained analytically for homogeneous traffic trunks, with respect to a single QoS constraint. Modern network solutions often imply the aggregation of...
The average height of a binary tree With n internal nodes is shown to be asymptotic to 2√πn. More generally, the average height of a tree in a simple family S with n nodes is asymptotic to c(S) √πn where c(S) is a number (usually algebraic) which can be explicitly determined from S. These results are achieved by means of a detailed singularity analysis of corresponding generating functions.
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