منابع مشابه
Modular Analysis of Almost Block Diagonal Systems of Equations
Almost block diagonal linear systems of equations can be exemplified by two modules. This makes it possible to construct all sequential forms of band and/or block elimination methods, six old and fourteen new. It allows easy assessment of the methods on the basis of their operation counts, storage needs, and admissibility of partial pivoting. It unveils a robust partial pivoting strategylocal p...
متن کاملDiagonal algebraic space-time block codes
We construct a new family of linear space-time block codes by the combination of rotated constellations and the Hadamard transform, and we prove them to achieve the full transmit diversity over a quasi-static or fast fading channels. The proposed codes transmit at a normalized rate of 1 symbol/sec. When the number of transmit antennae n = 1, 2 or n is a multiple of 4 we spread a rotated version...
متن کاملOn diagonal algebraic space-time block codes
Theoretical and practical aspects of diagonal algebraic space-time block codes over n transmit andm receive antennae are examined. These codes are obtained by sending a rotated version of the information symbols over the principal diagonal of the n × n space-time matrix over n transmit antennae and n symbol periods. The output signal-to-noise ratios of two pre-decoding filters and two decoding ...
متن کاملThe Parallel Solution of Almost Block Diagonal Systems Arising in Numerical Methods for BVPs for ODEs
Three parallel algorithms are presented for solving the Almost Block Diagonal (ABD) systems of linear algebraic equations that arise during the numerical solution of Boundary Value Problems (BVPs) for Ordinary Differential Equations (ODEs). Until recently, the solution of these systems has proven to be the execution-time bottleneck in the parallel implementation of most BVP codes. Several numer...
متن کاملModular Analysis of Sequential Solution Methods for Almost Block Diagonal Systems of Equations
Almost block diagonal linear systems of equations can be exemplified by two modules. This makes it possible to construct all sequential forms of band and/or block elimination methods. It also allows easy assessment of the methods on the basis of their operation counts, storage needs, and admissibility of partial pivoting.The outcome of the analysis and implementation is to discover new methods ...
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ژورنال
عنوان ژورنال: Computers & Mathematics with Applications
سال: 1990
ISSN: 0898-1221
DOI: 10.1016/0898-1221(90)90188-p