Jessica Feng, Farinaz Koushanfar*, and Miodrag Potkonjak
Computer Science Department, University of California, Los Angeles * Electrical Engineering and Computer Science Department, University of California, Berkeley {jessicaf, miodrag}@cs.ucla.edu; {farinaz}@eecs.berkeley.edu
TABLE OF CONTENTS
1. OVERVIEW 2. MOTIVATION AND OBJECTIVES 3. SNs – GLOBAL VIEW AND REQUIREMENTS 4. INDIVIDUAL COMPONENTS OF SN NODES PROCESSOR STORAGE POWER SUPPLY SENSORS AND/OR ACTUAT ORS RADIO 5. SENSOR NETWORK NODE BERKELEY MOTE NODE UCLA MEDUSA MK-2 NODE BWRC PICONODE LIGHT COMPASS NODE 6. WIRELESS SNs AS EMBEDDED SYSTEMS 7. SUMMARY 8. REFERENCE
4.1 4.2 4.3 4.4 4.5
5.1 5.2 5.3 5.4
ACKNOWLEDGEMENT This material is based upon work supported in part by the Nati nal Science Foundation o under Grant No. ANI-0085773 and NSF CENS Grant
1. OVERVIEW
Emergence of the concept of multihop ad-hoc wireless networks, low power electronics, low power short-range wireless communication radios, and intelligent sensors are considered as the major technological enablers for the deployment of sensor networks (SNs). Our goal in this survey is to identify the key architectural and design issues related to sensor networks, critically evaluate the proposed solutions, and outline the m challenging research ost directions. The evaluation has three levels of abstraction: individual components on SN nodes (processor, communication, storage, sensors and/or actuators, and power supply), node level, and distributed networked system level. Special emphasis is placed on architecture, system software, and on challenges related to the usage of new types of components in networked systems. The evaluation process is guided by the anticipated technology trends, the current and the future applications. The main conclusion of the analysis is that the architectural and synthesis emphasis will be shifted from computation and communication components to sensors and actuators, and