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ETT
2002
142views Education» more  ETT 2002»
8 years 10 months ago
Adaptive state- dependent importance sampling simulation of markovian queueing networks
In this paper, a method is presented for the efficient estimation of rare-event (buffer overflow) probabilities in queueing networks using importance sampling. Unlike previously pr...
Pieter-Tjerk de Boer, Victor F. Nicola
ETT
2002
113views Education» more  ETT 2002»
8 years 10 months ago
Partitioned residual echo power estimation for frequency-domain acoustic echo cancellation and postfiltering
Residual echo arises in hands
Gerald Enzner, Rainer Martin, Peter Vary
ETT
2002
93views Education» more  ETT 2002»
8 years 10 months ago
Quantum simulation - rare event simulation by means of cloning, thinning and distortion
A method of rare event simulation, termed here quantum simulation, and known also (with some variations) as population Monte Carlo, and Sequential Markov Chain simulation, is appli...
R. G. Addie
ETT
2002
140views Education» more  ETT 2002»
8 years 10 months ago
Spreading sequences for uplink and downlink MC-CDMA systems: PAPR and MAI minimization
This paper deals with spreading sequences selection for downlink and uplink Multi-Carrier Code Division Multiple Access (MC-CDMA) systems with the aim of minimizing the dynamic ran...
Stéphane Nobilet, Jean-François H&ea...
ETT
2002
175views Education» more  ETT 2002»
8 years 10 months ago
A multichannel acoustic echo canceler double-talk detector based on a normalized cross-correlation matrix
Multichannel acoustic echo cancellation is basically composed of two parts. One part is a multichannel system identification problem which is nontrivial to solve. The other part, w...
Jacob Benesty, Tomas Gänsler
ETT
2002
94views Education» more  ETT 2002»
8 years 10 months ago
Transmit/Receive-antenna diversity techniques for OFDM systems
In this paper, we investigate different antenna diversity concepts, which can be easily applied to orthogonal frequency division multiplexing (OFDM) systems. The focus is on standa...
Armin Dammann, Stefan Kaiser
ETT
2002
76views Education» more  ETT 2002»
8 years 10 months ago
Development and implementation of an advanced airport data link based on multi-carrier communications
In this paper, both the concept and the demonstrator implementation of an advanced airport data link is described which is used for data exchange between pilots and controllers in ...
Erik Haas, Helmuth Lang, Michael Schnell
ETT
2002
77views Education» more  ETT 2002»
8 years 10 months ago
On the importance function in splitting simulation
The splitting method is a simulation technique for the estimation of very small probabilities. In this technique, the sample paths are split into multiple copies, at various stages...
Marnix J. J. Garvels, Jan-Kees C. W. van Ommeren, ...
ETT
2002
156views Education» more  ETT 2002»
8 years 10 months ago
A variable step-size control of adaptation for acoustic echo cancellation filters
This paper presents a low-complexity variable step-size control for acoustic echo cancellation filters. The proposed control method is based on two supplementary adaptive filters ...
Vojko Pahor, Alberto Carini
ETT
2002
104views Education» more  ETT 2002»
8 years 10 months ago
Generalized window advertising for TCP congestion control
Congestion in the Internet is a major cause of network performance degradation. The Generalized Window Advertising (GWA) scheme proposed in this paper is a new approach for enhanci...
Mario Gerla, Renato Lo Cigno, Saverio Mascolo, Wen...
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