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CORR
2007
Springer
138views Education» more  CORR 2007»
15 years 6 months ago
Algebraic Distributed Space-Time Codes with Low ML Decoding Complexity
— ”Extended Clifford algebras” are introduced as a means to obtain low ML decoding complexity space-time block codes. Using left regular matrix representations of two speci...
G. Susinder Rajan, B. Sundar Rajan
CORR
2007
Springer
93views Education» more  CORR 2007»
15 years 6 months ago
Type-IV DCT, DST, and MDCT algorithms with reduced numbers of arithmetic operations
We present algorithms for the type-IV discrete cosine transform (DCT-IV) and discrete sine transform (DST-IV), as well as for the modified discrete cosine transform (MDCT) and it...
Xuancheng Shao, Steven G. Johnson
CORR
2007
Springer
155views Education» more  CORR 2007»
15 years 6 months ago
Algebraic Distributed Differential Space-Time Codes with Low Decoding Complexity
—The differential encoding/decoding setup introduced by Kiran et al, Oggier-Hassibi and Jing-Jafarkhani for wireless relay networks that use codebooks consisting of unitary matri...
G. Susinder Rajan, B. Sundar Rajan
CORR
2007
Springer
156views Education» more  CORR 2007»
15 years 6 months ago
Analysis of a Mixed Strategy for Multiple Relay Networks
Abstract— Infrastructure based wireless communications systems as well as ad hoc networks experience a growing importance in present-day telecommunications. An increased density ...
Peter Rost, Gerhard Fettweis
JMIV
2008
106views more  JMIV 2008»
15 years 6 months ago
Estimation of Vector Fields in Unconstrained and Inequality Constrained Variational Problems for Segmentation and Registration
Vector fields arise in many problems of computer vision, particularly in non-rigid registration. In this paper, we develop coupled partial differential equations (PDEs) to estimat...
Gozde B. Unal, Greg G. Slabaugh