Paper Info
Title
Scheduling and Power Allocation for Delay-Limited Multiuser Communications with Causal Channel Feedback
Abstract
This paper studies the joint scheduling and power allocation problem for a block Rayleigh flat-fading channel in the downlink assuming that causal channel state information (CSI) is available at the transmitter. An outage rate probability constraint which requires a certain rate to be achieved with a specified probability in a preset number of blocks, is imposed to each user and is regarded as a delay constraint. Our aim is to determine, for each block, which user should gain access to the channel and how much power is transmitted, for minimizing the overall transmit power with individual users' delay constraints, based on the causal CSI. The proposed approach is based on replacing the original probability constraints by upper bounds, and then convexizing the problem via relaxation. Results reveal that there is a significant performance gain between the methods with and without causal CSI at the transmitter.
Year
DOI
Venue
2007
10.1109/VETECS.2007.589
VTC Spring
Field
DocType
ISSN
Transmitter,Transmitter power output,Scheduling (computing),Computer science,Fading,Communication channel,Electronic engineering,Additive white Gaussian noise,Telecommunications link,Channel state information
Conference
1550-2252
ISBN
Citations 
PageRank 
1-4244-0266-2
0
0.34
References 
Authors
0
2
Name
Order
Citations
PageRank
Kai-Kit Wong13777281.90
King Sun Chan2245.04