Title :
Minimal Transmission Power vs. Signal Strength as Distance Estimation for Localization in Wireless Sensor Networks
Author :
Blumenthal, Jan ; Reichenbach, Frank ; Timmermann, Dirk
Author_Institution :
Inst. of Appl. Microelectron. & Comput. Sci., Rostock Univ.
Abstract :
Autonomous localization of nodes in wireless sensor networks is essential to minimize the complex self-organization task and to enhance network lifetime. Known techniques such as distance estimation based on received signal strength are often inaccurate and produce outliers. We propose a new method to measure a distance using the minimal transmission power between a transmitting node and a receiving node. The determined distance is very precise and has a low variance. It is therefore suitable for localization which is exemplary demonstrated for the approximate "weighted centroid localization" algorithm
Keywords :
power transmission; wireless sensor networks; autonomous localization; complex self-organization task minimization; distance estimation; network lifetime enhancement; signal strength; transmission power; weighted centroid localization algorithm; wireless sensor networks; Antenna measurements; Cyclic redundancy check; Equations; Life estimation; Lifetime estimation; Microelectronics; Power measurement; Remote sensing; Transceivers; Wireless sensor networks;
Conference_Titel :
Sensor and Ad Hoc Communications and Networks, 2006. SECON '06. 2006 3rd Annual IEEE Communications Society on
Conference_Location :
Reston, VA
Print_ISBN :
1-4244-0626-9
DOI :
10.1109/SAHCN.2006.288558