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» On the direct limit of a direct system of multialgebras
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CISS
2007
IEEE
15 years 4 months ago
Limited Feedback Precoder Design for Spatially Correlated MIMO Channels
Abstract— It is well-known that perfect channel state information (CSI) at the transmitter and the receiver (CSIT/CSIR) can be used to decompose a multi-antenna channel into a ba...
Vasanthan Raghavan, Akbar M. Sayeed, Venugopal V. ...
ICC
2007
IEEE
211views Communications» more  ICC 2007»
15 years 4 months ago
MIMO Cooperative Diversity in a Transmit Power Limited Environment
— This paper considers a fading relay channel where the total transmit power used is constrained to be equal to that of the standard single-hop channel. The relay channel used op...
Allan J. Jardine, Steve McLaughlin, John S. Thomps...
ER
2008
Springer
110views Database» more  ER 2008»
14 years 11 months ago
Conjunctive Query Containment under Access Limitations
Access limitations may occur when querying data sources over the web or heterogeneous data sources presented as relational tables: this happens, for instance, in Data Exchange and ...
Andrea Calì, Davide Martinenghi
SP
2008
IEEE
285views Security Privacy» more  SP 2008»
15 years 4 months ago
SybilLimit: A Near-Optimal Social Network Defense against Sybil Attacks
Decentralized distributed systems such as peer-to-peer systems are particularly vulnerable to sybil attacks, where a malicious user pretends to have multiple identities (called sy...
Haifeng Yu, Phillip B. Gibbons, Michael Kaminsky, ...
CORR
2010
Springer
204views Education» more  CORR 2010»
14 years 9 months ago
Limited Feedback Multi-Antenna Quantization Codebook Design-Part II: Multiuser Channels
This is the second part of a two-part paper on optimal design of limited feedback single-user and multiuser spatial multiplexing systems. The first part of the paper studies the si...
Behrouz Khoshnevis, Wei Yu