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ICC
2011
IEEE
201views Communications» more  ICC 2011»
14 years 6 months ago
Channel Aggregation in Cognitive Radio Networks with Practical Considerations
—In cognitive radio (CR) networks, licensed spectrum that can be shared by secondary users (SUs) is always restricted by the needs of primary users (PUs). Although channel aggreg...
Bo Gao, Yaling Yang, Jung-Min Park 0001
PODS
2012
ACM
276views Database» more  PODS 2012»
13 years 9 months ago
Randomized algorithms for tracking distributed count, frequencies, and ranks
We show that randomization can lead to significant improvements for a few fundamental problems in distributed tracking. Our basis is the count-tracking problem, where there are k...
Zengfeng Huang, Ke Yi, Qin Zhang
JMLR
2012
13 years 9 months ago
Fast interior-point inference in high-dimensional sparse, penalized state-space models
We present an algorithm for fast posterior inference in penalized high-dimensional state-space models, suitable in the case where a few measurements are taken in each time step. W...
Eftychios A. Pnevmatikakis, Liam Paninski
ICC
2008
IEEE
134views Communications» more  ICC 2008»
16 years 1 months ago
Non-Differential DSTBCs for Partially-Coherent Cooperative Communication
— In a distributed space-time coding scheme, based on the relay channel model, the relay nodes co-operate to linearly process the transmitted signal from the source and forward t...
Jagadeesh Harshan, B. Sundar Rajan
165
Voted
IROS
2008
IEEE
142views Robotics» more  IROS 2008»
16 years 1 months ago
Probabilistic mapping of dynamic obstacles using Markov chains for replanning in dynamic environments
— Robots acting in populated environments must be capable of safe but also time efficient navigation. Trying to completely avoid regions resulting from worst case predictions of...
Florian Rohrmüller, Matthias Althoff, Dirk Wo...