Abstract
Communication is usually the most energy-consuming event on mobile ad hoc networks. Hence, medium access control (MAC) protocols use techniques tomitigate energy consumption on the transmission of data. This chapter presents one such technique, which consists of adjusting the transmission power of the packets. We discuss the fundamentals of transmission power control (TPC), showing their effects in wireless communication and the requirements of TPC solutions. Next, we examine the issues associated with their implementation and show the difficulties of implementing those techniques on real hardware, based on our experience with TPC-aware MAC protocols for wireless sensor networks. We close this chapter with a glimpse of future challenges of TPC-aware MAC protocols on MANETs and WSNs.
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Notes
- 1.
Even though the flash consumes as much energy as the transceiver, these memories are scarcely accessed due to its high read and write time.
- 2.
The relations expressed in this chapter are written for values in Watts, to simplify the comprehension of the method. A transformation is required to apply those equations to values in dBm.
- 3.
Most embedded processors implement division on software, thus this operation should be avoided.
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Correia, L.H.A., Macedo, D.F., dos Santos, A.L., Nogueira, J.M.S. (2009). Transmission Power Control Techniques in Ad Hoc Networks. In: Misra, S., Woungang, I., Misra, S. (eds) Guide to Wireless Sensor Networks. Computer Communications and Networks. Springer, London. https://doi.org/10.1007/978-1-84882-218-4_18
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