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In this paper, we propose a generalized greedy (G-greedy) algorithm based on zero-forcing beamforming (ZFBF) for the multiple-input multiple-output (MIMO) broadcast channel. This algorithm serves as a general mathematical framework that includes a number of existing greedy user selection methods as its realizations. As previous results only give the scaling law of the sum rate of dirty paper coding...
In this paper, a novel approach using frame-based iterative channel fading parameters estimation technique from the received data sequence exploiting orthogonal property of the space-time block (STB) code is proposed. For practical implementation of STB code, the receiver requires to estimate these parameters. Regarding this type of estimation, the inherent orthogonal nature of STB code can be exploited...
Some models of parallel computation consist of copies of a single finite automaton, connected together in a regular fashion. In such computers clerks can be a useful data structure, enabling one to simulate a more powerful computer for which optimal algorithms are easier to design. Clerks are used here to give optimal algorithms for the 3-dimensional connected is problem on a parallel processing array,...
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