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ICASSP
2011
IEEE
13 years 26 days ago
A wavenumber-fitting extrapolation method for FFT-based near-field acoustic holography using microphone array
Near-field acoustic holography (NAH) is an important acoustic visualization technique which can be implemented efficiently through the fast Fourier transform (FFT). However, whe...
Benxu Liu, Bremananth Ramachandran, Andy W. H. Kho...
GLOBECOM
2009
IEEE
14 years 3 months ago
A Practical Approach for Providing QoS in Multichannel Ad-Hoc Networks Using Spectrum Width Adaptation
Abstract—Multichannel wireless networks provide the flexibility to utilize the available spectrum efficiently for achieving improved system performance in terms of throughput a...
Vijay Raman, Matthew C. Caesar
SIBGRAPI
2008
IEEE
14 years 3 months ago
Crop Type Recognition Based on Hidden Markov Models of Plant Phenology
This work introduces a Hidden Markov Model (HMM) based technique to classify agricultural crops. The method recognizes different crops by analyzing their spectral profiles over a ...
P. B. C. Leite, Raul Queiroz Feitosa, A. R. Formag...
CORR
2008
Springer
212views Education» more  CORR 2008»
13 years 9 months ago
Joint Adaptive Modulation-Coding and Cooperative ARQ for Wireless Relay Networks
This paper presents a cross-layer approach to jointly design adaptive modulation and coding (AMC) at the physical layer and cooperative truncated automatic repeat request (ARQ) pro...
Morteza Mardani, Jalil S. Harsini, Farshad Lahouti...
WCNC
2010
IEEE
13 years 7 months ago
Combining Parallel Sequence Spread Spectrum (PSSS) with OFDM - Concept and Simulation Results
—In this paper, we present a novel multi-carrier spread spectrum (MCSS) system which uses Parallel Sequence Spread Spectrum (PSSS) as its spreading transform. This technique call...
Paulo Isagani M. Urriza, Joel Joseph S. Marciano J...