Future Rate Estimation Based Opportunistic Scheduling for Deadline Constraint Multi-user Systems
暂无分享,去创建一个
In this work, an energy efficient opportunistic
scheduling scheme is presented for a multi-user wireless system.
Provision of quality of service(QoS) with varying parameters is
a fundamental requirement for the modern wireless networks.
The scheme uses the channel statistics to schedule a set of users
opportunistically such that each user is scheduled before the
hard deadline. Every user performs scheduling decision selfishly.
As the user comes close to the deadline, the threshold for
transmission is decreased in proportion to the time slots left
before the deadline is approached. The scheme is analyzed by
assuming the constant arrivals and same deadline requirement
for all the packets. The algorithm is also discussed for variable
deadline constraints for different packets. The results demonstrate
the energy-delay tradeoff for a deadline constraint multiuser
system. An energy efficient solution is provided for a multi–
user environment where users have different quality of service
(QoS) requirements in terms of deadline constraints.