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INFOCOM
2011
IEEE
7 years 9 months ago
A comparative study of two network-based anomaly detection methods
—Modern networks are complex and hence, network operators often rely on automation to assist in assuring the security, availability, and performance of these networks. At the cor...
Kaustubh Nyalkalkar, Sushant Sinha, Michael Bailey...
ICASSP
2011
IEEE
7 years 10 months ago
Are all basis updates for lattice-reduction-aided MIMO detection necessary?
The question in the title is relevant when considering latticereduction-aided MIMO detectors, which achieve the same diversity as the maximum-likelihood detector while exhibiting ...
Brian Gestner, Xiaoli Ma, David V. Anderson
TSP
2011
170views more  TSP 2011»
8 years 1 months ago
Low-Delay Prediction- and Transform-Based Wyner-Ziv Coding
—This paper studies low-delay Wyner–Ziv coding, i.e., lossy source coding with side information at the decoder, with emphasis on the extreme of zero delay. To achieve zero dela...
Xuechen Chen, Ertem Tuncel
WCNC
2010
IEEE
8 years 4 months ago
Linear and Non-Linear Detection for MIMO-OFDM Systems with Linear Precoding and Spatial Correlation
Precoding at the transmitter side facilitates the use of linear MIMO detection schemes, which are attractive for low-complexity receiver implementations. However, their performance...
Eckhard Ohlmer, Gerhard Fettweis
PE
2007
Springer
131views Optimization» more  PE 2007»
8 years 5 months ago
Moment estimation in delay tomography with spatial dependence
Parametric models for estimating network link delays with incomplete data that incorporate spatial correlation are formulated. Fast numerical methods for estimation of parameters ...
Ian H. Dinwoodie, Eric A. Vance
TWC
2008
96views more  TWC 2008»
8 years 6 months ago
Spatial correlation in ultrawideband channels
Abstract-- Correlated fading adversely affects the spatial multiplexing and diversity performance of multiple-antenna systems. This paper presents an empirical investigation of spa...
Wasim Q. Malik
TCOM
2008
101views more  TCOM 2008»
8 years 6 months ago
Transmit beamforming for space-frequency coded MIMO-OFDM systems with spatial correlation feedback
Abstract--This paper addresses the problem of joint optimization of transmit beamforming and space-frequency (SF) coding for MIMO-OFDM systems with spatial correlation feedback in ...
Ahmed K. Sadek, Weifeng Su, K. J. Ray Liu
TCAD
2008
136views more  TCAD 2008»
8 years 6 months ago
A Geometric Programming-Based Worst Case Gate Sizing Method Incorporating Spatial Correlation
We present an efficient optimization scheme for gate sizing in the presence of process variations. Our method is a worst-case design scheme, but it reduces the pessimism involved i...
Jaskirat Singh, Zhi-Quan Luo, Sachin S. Sapatnekar
CORR
2006
Springer
145views Education» more  CORR 2006»
8 years 6 months ago
Asymptotic SER and Outage Probability of MIMO MRC in Correlated Fading
This letter derives the asymptotic symbol error rate (SER) and outage probability of multiple-input multiple-output (MIMO) maximum ratio-combining (MRC) systems. We consider Raylei...
Shi Jin, Matthew R. McKay, Xiqi Gao, Iain B. Colli...
CORR
2006
Springer
86views Education» more  CORR 2006»
8 years 6 months ago
Maximum Entropy MIMO Wireless Channel Models
In this contribution, models of wireless channels are derived from the maximum entropy principle, for several cases where only limited information about the propagation environmen...
Maxime Guillaud, Mérouane Debbah, Aris L. M...
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