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PIMRC
2010
IEEE
13 years 5 months ago
A multi-threshold scheme for feedback load reduction in multiuser MIMO broadcast channel
In a multiuser system, independent time-varying channels among different users can be exploited to provide multiuser diversity (MUD) gain and increase the system throughput. For th...
Jin-Hao Li, Hsuan-Jung Su, Yu-Lun Tsai
LFCS
2007
Springer
14 years 1 months ago
Model Checking Knowledge and Linear Time: PSPACE Cases
We present a general algorithm scheme for model checking logics of knowledge, common knowledge and linear time, based on simulations to a class of structures that capture the way t...
Kai Engelhardt, Peter Gammie, Ron van der Meyden
GLOBECOM
2010
IEEE
13 years 5 months ago
Throughput and Energy Efficiency of Opportunistic Routing with Type-I HARQ in Linear Multihop Networks
Opportunistic routing is a well-known technique that exploits the broadcast nature of wireless transmissions and path diversity to form the route in an adaptive manner based on cur...
Davide Chiarotto, Osvaldo Simeone, Michele Zorzi
EDBT
2004
ACM
163views Database» more  EDBT 2004»
14 years 7 months ago
Energy-Conserving Air Indexes for Nearest Neighbor Search
A location-based service (LBS) provides information based on the location information specified in a query. Nearest-neighbor (NN) search is an important class of queries supported ...
Baihua Zheng, Jianliang Xu, Wang-Chien Lee, Dik Lu...
TWC
2010
13 years 2 months ago
Adaptive linearly constrained minimum variance beamforming for multiuser cooperative relaying using the kalman filter
In this paper, we consider a wireless communication scenario with multiple source-destination pairs communicating through several cooperative amplify-and-forward relay terminals. T...
Amr El-Keyi, Benoît Champagne