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ICASSP
2008
IEEE
13 years 11 months ago
Compressive wireless arrays for bearing estimation
Joint processing of sensor array outputs improves the performance of parameter estimation and hypothesis testing problems beyond the sum of the individual sensor processing result...
Volkan Cevher, Ali Cafer Gurbuz, James H. McClella...
ICASSP
2008
IEEE
13 years 11 months ago
Performance characteristics of collaborative beamforming for wireless sensor networks with Gaussian distributed sensor nodes
Collaborative beamforming has been recently introduced in the context of wireless sensor networks (WSNs) to increase the transmission range of individual sensor nodes. In this pap...
Mohammed F. A. Ahmed, Sergiy A. Vorobyov
ICASSP
2008
IEEE
13 years 11 months ago
The role of subspace swap in maximum likelihood estimation performance breakdown
Ben A. Johnson, Yuri I. Abramovich, Xavier Mestre
ICASSP
2008
IEEE
13 years 11 months ago
Factorized variational approximations for acoustic multi source localization
Estimation based on received signal strength (RSS) is crucial in sensor networks for sensor localization, target tracking, etc. In this paper, we present a Gaussian approximation ...
Volkan Cevher, Aswin C. Sankaranarayanan, Rama Che...
ICASSP
2008
IEEE
13 years 11 months ago
Analytic framework for performance evaluation of multi-antenna WIMAX systems over fading channel
This paper focuses on the uplink of multicell IEEE 802.16-d WiMax systems with OFDM modulation and antenna array at the base stations. We propose an analytical framework to assess...
Daniele Molteni, Roberto Bosisio, Monica Nicoli
ICASSP
2008
IEEE
13 years 11 months ago
Separation of overlapping RFID signals by antenna arrays
— Radio Frequency Identi cation (RFID) is a technology to wirelessly transmit the identity of tagged objects. For long-range (UHF) systems with multiple tags, the tag replies may...
Asli F. Mindikoglu, Alle-Jan van der Veen
ICASSP
2008
IEEE
13 years 11 months ago
Adaptive detection for a differential chaos-based multiple access system on unknown multipath fading channels
This paper addresses the problem of bit detection for a chaos-based multiple-access system. In particular, one considers the Differential Chaos Shift Keying modulation. It is assu...
Martial Coulon, Daniel Roviras
ICASSP
2008
IEEE
13 years 11 months ago
Design of block-structured LDPC codes for iterative receivers with soft sphere detection
In this paper we design block-structured LDPC codes for iterative MIMO receivers with soft sphere detection in particular channel environments. The receiver EXIT charts are used a...
Predrag Radosavljevic, Joseph R. Cavallaro
ICASSP
2008
IEEE
13 years 11 months ago
A generalized optimal correlating transform for multiple description coding and its theoretical analysis
This paper considers a coding scheme for data transmission over erasure channels which is also known as multiple description coding. The LMMSE prefilter method of Romano [1] is r...
Stefan Uhlich, Bin Yang
ICASSP
2008
IEEE
13 years 11 months ago
The role of subspace swap in music performance breakdown
Ben A. Johnson, Yuri I. Abramovich, Xavier Mestre