Sciweavers

TSP
2008
113views more  TSP 2008»
13 years 11 months ago
Avoiding Divergence in the Shalvi-Weinstein Algorithm
The most popular algorithms for blind equalization are the constant-modulus algorithm (CMA) and the ShalviWeinstein algorithm (SWA). It is well-known that SWA presents a higher co...
Maria D. Miranda, Magno T. M. Silva, Victor H. Nas...
JSAC
2007
98views more  JSAC 2007»
13 years 11 months ago
Optimum Power Allocation for Single-User MIMO and Multi-User MIMO-MAC with Partial CSI
Abstract— We consider both the single-user and the multiuser power allocation problems in MIMO systems, where the receiver side has the perfect channel state information (CSI), a...
Alper Soysal, Sennur Ulukus
TSP
2008
94views more  TSP 2008»
13 years 11 months ago
Cross-Entropy-Based Sign-Selection Algorithms for Peak-to-Average Power Ratio Reduction of OFDM Systems
Sign-selection uses a set of subcarrier signs to reduce the peak-to-average power ratio (PAR) of orthogonal-frequency-division multiplexing (OFDM). However, the computational compl...
Luqing Wang, Chintha Tellambura
TSP
2008
88views more  TSP 2008»
13 years 11 months ago
Statistical Performance of MUSIC-Like Algorithms in Resolving Noncircular Sources
Abstract--This paper addresses the resolution of the conventional and noncircular MUSIC algorithms for arbitrary circular and noncircular second-order distributions of two uncorrel...
Habti Abeida, Jean Pierre Delmas
TSP
2008
168views more  TSP 2008»
13 years 11 months ago
Improving the Tracking Capability of Adaptive Filters via Convex Combination
As is well known, Hessian-based adaptive filters (such as the recursive-least squares algorithm
M. T. M. Silva, Victor H. Nascimento
JPDC
2007
112views more  JPDC 2007»
13 years 11 months ago
Distributed algorithms for connected domination in wireless networks
We present fast distributed local control Connected Dominating Set (CDS) algorithms for wireless ad hoc networks. We present two randomized distributed algorithms, CDSColor and CD...
Rajiv Gandhi, Srinivasan Parthasarathy 0002
TSP
2008
179views more  TSP 2008»
13 years 11 months ago
Estimation in Gaussian Graphical Models Using Tractable Subgraphs: A Walk-Sum Analysis
Graphical models provide a powerful formalism for statistical signal processing. Due to their sophisticated modeling capabilities, they have found applications in a variety of fie...
V. Chandrasekaran, Jason K. Johnson, Alan S. Wills...
TSP
2008
111views more  TSP 2008»
13 years 11 months ago
Consistent Impulse-Response Estimation and System Realization From Noisy Data
A novel method for the estimation of a finite part of the impulse response is presented. The method is consistent in case the measured output data are prone to colored noise. The c...
E. Reynders, Rik Pintelon, G. De Roeck
TSP
2008
90views more  TSP 2008»
13 years 11 months ago
Array-Based QR-RLS Multichannel Lattice Filtering
An array-based algorithm for multichannel lattice filtering is proposed. The filter is formed by a set of units that are adapted locally and concurrently using recursions that clos...
J. Gomes, V. A. N. Barroso
TSP
2008
126views more  TSP 2008»
13 years 11 months ago
HOS-Based Semi-Blind Spatial Equalization for MIMO Rayleigh Fading Channels
In this paper we concentrate on the direct semi-blind spatial equalizer design for MIMO systems with Rayleigh fading channels. Our aim is to develop an algorithm which can outperf...
Zhiguo Ding, Tharmalingam Ratnarajah, Colin Cowan