28-08-2017, 01:12 PM
The transmitter can adapt the rate over time by varying the power and the objective is to obtain the speed control policy that minimizes the expected energy expenditure by complying with the term restrictions. Based on a cumulative curves methodology and a decomposition approach, we obtain the optimal policy when the queue has packages with variable deadline restrictions.
Limitations of delay and energy efficiency are major concerns in the design of modern wireless systems. Data services such as real-time multimedia streaming and video, high-performance file transfers, and voice over IP require strict data delaying constraints. Similarly, in sensor networks, time-sensitive detection applications impose deadline restrictions within which data must be transmitted back to a central processing entity. Power consumption is also a major concern and minimizing this cost has numerous advantages in the efficient use of the battery of mobile devices, increasing the useful life of sensor and ad hoc networks and better utilization of the limited sources Of energy in satellites. In addition, since transmission energy constitutes the bulk of total energy expenditure, it is imperative to minimize this cost to achieve significant energy savings.
Limitations of delay and energy efficiency are major concerns in the design of modern wireless systems. Data services such as real-time multimedia streaming and video, high-performance file transfers, and voice over IP require strict data delaying constraints. Similarly, in sensor networks, time-sensitive detection applications impose deadline restrictions within which data must be transmitted back to a central processing entity. Power consumption is also a major concern and minimizing this cost has numerous advantages in the efficient use of the battery of mobile devices, increasing the useful life of sensor and ad hoc networks and better utilization of the limited sources Of energy in satellites. In addition, since transmission energy constitutes the bulk of total energy expenditure, it is imperative to minimize this cost to achieve significant energy savings.