Low Power Design for Wireless Sensor Networks
نویسنده
چکیده
Reference design for radio part is OKI’s ML7050LA [2] single chip RF having for example following blocks integrated: Low noise amplifier (LNA), power amplifier (PA), image rejection mixer (IMR). Block diagram of ML7050LA is in Figure 1. By assuming to use 3 V supply voltage Tx power dissipation is 102mW and Rx power dissipation is 165mW. Abstract—Wireless sensor networks have several challenges and one of those challenges is power efficiency. Almost in all cases in wireless sensor network’s nodes get their energy from batteries without having capability for charging. One design constraint is long operating time so efficient energy management in all levels play key role. This paper briefly introduces power management concept in different design levels – VLSI design techniques for low power designs, energy efficient protocols and energy efficient topologies.
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