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» The Expressive Rate of Constraints
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JSAC
2007
69views more  JSAC 2007»
15 years 6 months ago
Multi-Antenna Downlink Channels with Limited Feedback and User Selection
Abstract— We analyze the sum-rate performance of a multiantenna downlink system carrying more users than transmit antennas, with partial channel knowledge at the transmitter due ...
Taesang Yoo, Nihar Jindal, Andrea J. Goldsmith
TWC
2008
111views more  TWC 2008»
15 years 6 months ago
Closed-Form Exact BER and Optimization of Generalized Orthogonal STBCs
Abstract--The closed-form exact bit error rate (BER) expressions of generalized orthogonal space-time block codes (OSTBCs) are first derived for quadrature amplitude modulation (QA...
Il-Min Kim, Dongwoo Kim
213
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TWC
2008
103views more  TWC 2008»
15 years 6 months ago
Exact BER analysis for M-QAM modulation with transmit beamforming under channel prediction errors
Abstract--Significant throughput improvements can be obtained in multiple-input multiple-output (MIMO) fading channels by merging beamforming at the transmitter and maximal ratio c...
Eduardo Martos-Naya, José F. Paris, Unai Fe...
AROBOTS
2004
93views more  AROBOTS 2004»
15 years 6 months ago
Propagation of Uncertainty in Cooperative Multirobot Localization: Analysis and Experimental Results
This paper examines the problem of cooperative localization for the case of large groups of mobile robots. A Kalman filter estimator is implemented and tested for this purpose. The...
Stergios I. Roumeliotis, Ioannis M. Rekleitis
TIT
2002
67views more  TIT 2002»
15 years 6 months ago
A statistical-mechanics approach to large-system analysis of CDMA multiuser detectors
We present a theory, based on statistical mechanics, to evaluate analytically the performance of uncoded, fully synchronous, randomly spread code-division multiple-access (CDMA) mu...
Toshiyuki Tanaka