An Adaptive Transmission Rate Control Approach to Minimize Energy Consumption

There is a tradeoff between energy saving and realtime stream deadline meeting in wireless sensor transmission. Existing work has proposed rate control methods to minimize energy consumption based on several ideal assumptions, e.g., a packet arriving earlier has an earlier deadline, packet arrival times are known precisely, and a packet transmission can be preempted. We remove these unrealistic assumptions and propose an online rate control approach that adjusts transmission rates efficiently to minimize energy dissipation. Preliminary results indicate that our method greatly improves existing approaches.