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PIMRC
2010
IEEE
15 years 1 months ago
Asymptotic analysis of distributed multi-cell beamforming
We consider the problem of multi-cell downlink beamforming with N cells and K terminals per cell. Cooperation among base stations (BSs) has been found to increase the system throug...
Subhash Lakshminaryana, Jakob Hoydis, Mérou...
ICMCS
2009
IEEE
151views Multimedia» more  ICMCS 2009»
15 years 1 months ago
High accuracy and language independent document retrieval with a Fast Invariant Transform
This paper presents a tool and a novel Fast Invariant Transform (FIT) algorithm for language independent e-documents access. The tool enables a person to access an e-document thro...
Qiong Liu, Hironori Yano, Don Kimber, Chunyuan Lia...
CORR
2010
Springer
108views Education» more  CORR 2010»
14 years 11 months ago
Finding Cycles and Trees in Sublinear Time
We present sublinear-time (randomized) algorithms for finding simple cycles of length at least k 3 and tree-minors in bounded-degree graphs. The complexity of these algorithms is...
Artur Czumaj, Oded Goldreich, Dana Ron, C. Seshadh...
TIP
2010
176views more  TIP 2010»
14 years 10 months ago
A PDE Formalization of Retinex Theory
In 1964 Edwin H. Land formulated the Retinex theory, the first attempt to simulate and explain how the human visual system perceives color. His theory and an extension, the "r...
Jean-Michel Morel, Ana Belen Petro, Catalina Sbert
TSP
2010
14 years 10 months ago
Linear precoder design through cut-off rate maximization in MIMO-OFDM coded systems with imperfect CSIT
This paper proposes a linear transmitter design that aims at minimizing the packet error rate (PER) using partial channel state information at the transmitter (CSIT). The design is...
Francesc Rey, Meritxell Lamarca, Gregori Vá...