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The next generation of wireless networks (4G) will use OFDMA (Orthogonal Frequency Division Multiple Access) in the reverse link. In OFDMA, the reverse link resources assigned to a user are called tiles each of which consists of a subset of consecutive subcarriers. Since at most one user is assigned to each of these tiles then reverse link transmissions within a sector are orthogonal. However, the...
The necessity of super grid operation at different layer and zone together with relevant technical principles are discussed in this paper. The proposed methodology deals with two questions: whether electromagnetic loops should exist or not in power system and how to put in practice. Corresponding indices are established to assess the system performance. An example is demonstrated and a software program,...
The goal of this paper is to point out that analyses of parallelism in computational problems have practical implications even when multi-processor machines are not available. This is true because, in many cases, a good parallel algorithm for one problem may turn out to be useful for designing an efficient serial algorithm for another problem. A unified framework for cases like this is presented....
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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