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GLOBECOM
2007
IEEE
13 years 11 months ago
CAC for Multibeam Opportunistic Schemes in Heterogeneous WiMax Systems Under QoS Constraints
Spatial scheduling in a heterogeneous WiMax Downlink channel, based on partial Channel State Information at the Transmitter (CSIT), is carried out through a multibeam opportunistic...
Nizar Zorba, Ana I. Pérez-Neira
JSAC
2007
98views more  JSAC 2007»
13 years 7 months ago
Optimum Power Allocation for Single-User MIMO and Multi-User MIMO-MAC with Partial CSI
Abstract— We consider both the single-user and the multiuser power allocation problems in MIMO systems, where the receiver side has the perfect channel state information (CSI), a...
Alper Soysal, Sennur Ulukus
INFOCOM
2007
IEEE
14 years 1 months ago
Rate-Adaptive Framing for Interfered Wireless Networks
The majority of existing wireless rate controls are based on the implicit assumption that frames are corrupted due to the random, arbitrary environmental and thermal noises. They ...
Chun-cheng Chen, Haiyun Luo, Eunsoo Seo, Nitin H. ...
TWC
2008
133views more  TWC 2008»
13 years 7 months ago
Beam Selection Strategies for Orthogonal Random Beamforming in Sparse Networks
Abstract--Orthogonal random beamforming (ORB) constitutes a mean to exploit spatial multiplexing and multi-user diversity (MUD) gains in multi-antenna broadcast channels. To do so,...
José López Vicario, Roberto Bosisio,...
ICC
2009
IEEE
135views Communications» more  ICC 2009»
13 years 5 months ago
Adaptive Compress-and-Forward Relaying in Fading Environments with or without Wyner-Ziv Coding
Abstract--Compress-and-Forward is a protocol for transmission over relay networks in which the relay forwards a compressed version of the signal it observes. The compression method...
Harold H. Sneessens, Luc Vandendorpe, J. Nicholas ...