Sciweavers

TSP
2008
115views more  TSP 2008»
13 years 11 months ago
The Shiftable Complex Directional Pyramid - Part I: Theoretical Aspects
Abstract--This paper presents an over-complete multiscale decomposition by combining the Laplacian pyramid and the complex directional filter bank (DFB). The filter bank is constru...
Truong T. Nguyen, Soontorn Oraintara
TSP
2008
87views more  TSP 2008»
13 years 11 months ago
Widely Linear Filter Bank Equalizer for Real STBC
Ka Shun Carson Pun, Truong Q. Nguyen
TSP
2008
108views more  TSP 2008»
13 years 11 months ago
Interference Suppression for Multiuser Downlink Transmission in Frequency-Selective Fading Channels
Abstract--This paper presents an interference suppression scheme for multiuser downlink transmission in severe frequency-selective fading environments. Frequency-domain transmit be...
Li Guo, Yih-Fang Huang
TSP
2008
106views more  TSP 2008»
13 years 11 months ago
Guaranteeing Practical Convergence in Algorithms for Sensor and Source Localization
This paper considers localization of a source or a sensor from distance measurements. We argue that linear algorithms proposed for this purpose are susceptible to poor noise perfor...
Baris Fidan, Soura Dasgupta, Brian D. O. Anderson
TSP
2008
69views more  TSP 2008»
13 years 11 months ago
Stochastic Stability Analysis for the Constant-Modulus Algorithm
We derive an easy-to-compute approximate bound for the range of step-sizes for which the constant-modulus algorithm (CMA) will remain stable if initialized close to a minimum of t...
Victor H. Nascimento, M. T. M. Silva
TSP
2008
94views more  TSP 2008»
13 years 11 months ago
Optimal Particle Filters for Tracking a Time-Varying Harmonic or Chirp Signal
We consider the problem of tracking the time-varying (TV) parameters of a harmonic or chirp signal using particle filtering (PF) tools. Similar to previous PF approaches to TV spec...
E. E. Tsakonas, Nicholas D. Sidiropoulos, Ananthra...
TSP
2008
147views more  TSP 2008»
13 years 11 months ago
Decentralized Activation in Dense Sensor Networks via Global Games
Decentralized activation in wireless sensor networks is investigated for energy-efficient monitoring using the theory of global games. Given a large number of sensors which can ope...
V. Krishnamurthy
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
90views more  TSP 2008»
13 years 11 months ago
Minimizing Transmit Power for Coherent Communications in Wireless Sensor Networks With Finite-Rate Feedback
We minimize average transmit power with finite-rate feedback for coherent communications in a wireless sensor network (WSN), where sensors communicate with a fusion center using ad...
Antonio G. Marqués, Xin Wang, Georgios B. G...