Micropower wireless sensors

This paper describes circuit architectures and techniques to meet the specialized requirements of energyautonomous micro-sensor nodes. We address the fundamental components, namely the ADC, DSP, and radio, at the node-level to isolate important optimizations and functions. Using prototyped implementations, low energy and power-aware circuits are presented. These, state-of-the-art techniques demonstrate that practical self-powered nodes are possible.

[1]  B. Calhoun,et al.  Ultra-dynamic voltage scaling using sub-threshold operation and local voltage dithering in 90nm CMOS , 2005, ISSCC. 2005 IEEE International Digest of Technical Papers. Solid-State Circuits Conference, 2005..

[2]  A. Chandrakasan,et al.  A 256kb Sub-threshold SRAM in 65nm CMOS , 2006, 2006 IEEE International Solid State Circuits Conference - Digest of Technical Papers.

[3]  Naveen Verma,et al.  Design considerations for ultra-low energy wireless microsensor nodes , 2005, IEEE Transactions on Computers.

[4]  A. Chandrakasan,et al.  A 180-mV subthreshold FFT processor using a minimum energy design methodology , 2005, IEEE Journal of Solid-State Circuits.

[5]  A.P. Chandrakasan,et al.  Ultra-dynamic Voltage scaling (UDVS) using sub-threshold operation and local Voltage dithering , 2006, IEEE Journal of Solid-State Circuits.

[6]  A.P. Chandrakasan,et al.  Energy efficient OOK transceiver for wireless sensor networks , 2006, IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, 2006.

[7]  Anantha Chandrakasan,et al.  Energy efficient Modulation and MAC for Asymmetric RF Microsensor Systems , 2001, ISLPED '01.

[8]  Satish Kumar,et al.  Next century challenges: scalable coordination in sensor networks , 1999, MobiCom.

[9]  B. Otis,et al.  PicoRadios for wireless sensor networks: the next challenge in ultra-low power design , 2002, 2002 IEEE International Solid-State Circuits Conference. Digest of Technical Papers (Cat. No.02CH37315).

[10]  Naveen Verma,et al.  12.5 A 25µW 100kS/s 12b ADC for Wireless Micro-Sensor Applications , 2006 .