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CORR
2010
Springer

Energy Optimal Transmission Scheduling in Wireless Sensor Networks

10 years 8 months ago
Energy Optimal Transmission Scheduling in Wireless Sensor Networks
One of the main issues in the design of sensor networks is energy efficient communication of time-critical data. Energy wastage can be caused by failed packet transmission attempts at each node due to channel dynamics and interference. Therefore transmission control techniques that are unaware of the channel dynamics can lead to suboptimal channel use patterns. In this paper we propose a transmission controller that utilizes different "grades" of channel side information to schedule packet transmissions in an optimal way, while meeting a deadline constraint for all packets waiting in the transmission queue. The wireless channel is modeled as a finite-state Markov channel (FSMC). We are specifically interested in the case where the transmitter has low-grade channel side information that can be obtained based solely on the ACK/NAK sequence for the previous transmissions. Our scheduler is readily implementable and it is based on the dynamic programming solution to the finite-hor...
Rahul Srivastava, Can Emre Koksal
Added 14 May 2011
Updated 14 May 2011
Type Journal
Year 2010
Where CORR
Authors Rahul Srivastava, Can Emre Koksal
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