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GLOBECOM
2008
IEEE
14 years 5 months ago
Robustness Analysis of Source Localization Using Gaussianity Measure
Nowadays, the source localization has been widely applied for wireless sensor networks. The Gaussian mixture model has been adopted for maximum-likelihood (ML) source localization ...
Kun Yan, Hsiao-Chun Wu, S. S. Iyengar
GLOBECOM
2008
IEEE
14 years 5 months ago
Distributed Double-Differential Orthogonal Space-Time Coding for Cooperative Networks
— In this paper, distributed double-differential coding is proposed to avoid the problem of carrier offsets in amplify and forward protocol based cooperative network with two rel...
Manav R. Bhatnagar, Are Hjørungnes
GLOBECOM
2008
IEEE
14 years 5 months ago
Self-Interference Aided Channel Estimation in Two-Way Relaying Systems
—In this paper, we propose a novel channel estimation scheme for the broadcast phase of the newly invented twoway relaying technique. Instead of using pilot sequences, we exploit...
Jian Zhao, Marc Kuhn, Armin Wittneben, Gerhard Bau...
GLOBECOM
2008
IEEE
14 years 5 months ago
Lowering LDPC Error Floors by Postprocessing
−A class of combinatorial structures, called absorbing sets, strongly influences the performance of low-density paritycheck (LDPC) decoders at low error rates. Past experiments h...
Zhengya Zhang, Lara Dolecek, Borivoje Nikolic, Ven...
GLOBECOM
2008
IEEE
13 years 11 months ago
Cooperative Spectrum Allocation in Centralized Cognitive Networks Using Bipartite Matching
—Conflict free spectrum allocation for secondary users in cognitive networks is a challenging problem, since the accessible spectrum is shared among users. The problem becomes to...
Chengshi Zhao, Mingrui Zou, Bin Shen, Bumjung Kim,...