Sciweavers

TWC
2010
13 years 7 months ago
Joint channel estimation and resource allocation for MIMO systems-part II: multi-user and numerical analysis
This is the second part of a two-part paper on the joint channel estimation and resource allocation problem in MIMO systems with noisy channel estimation at the receiver side and p...
Alkan Soysal, Sennur Ulukus
TWC
2010
13 years 7 months ago
Joint channel estimation and resource allocation for MIMO systems-part I: single-user analysis
Multiple antenna systems are known to provide very large data rates, when the perfect channel state information (CSI) is available at the receiver. However, this requires the recei...
Alkan Soysal, Sennur Ulukus
GLOBECOM
2009
IEEE
14 years 4 months ago
Relay Selection and Data Transmission Throughput Tradeoff in Cooperative Systems
A common and practical paradigm in cooperative communications is the use of a dynamically selected 'best' relay to decode and forward information from a source to a dest...
Virag Shah, Neelesh B. Mehta, Raymond Yim
GLOBECOM
2008
IEEE
14 years 7 months ago
MIMO Multiple Access Channels with Noisy Channel Estimation and Partial CSI Feedback
Abstract—We consider correlated MIMO multiple access channels with block fading, where each block is divided into training and data transmission phases. We find the channel esti...
Alkan Soysal, Sennur Ulukus
CISS
2008
IEEE
14 years 7 months ago
Achievable rates and training optimization for fading relay channels with memory
—In this paper, transmission over time-selective, flat fading relay channels is studied. It is assumed that channel fading coefficients are not known a priori. Transmission tak...
Sami Akin, Mustafa Cenk Gursoy