Title :
A differential coding algorithm for wireless sensor networks
Author :
Aquino, Juliana F S ; Nakamura, Eduardo F. ; Loureiro, Antonio A F ; Endler, Markus
Author_Institution :
Pontifical Catholic Univ. of Rio de Janeiro (PUC-Rio), Rio de Janeiro
Abstract :
A typical problem in wireless sensor networks is how to collect and send historical information from all sensor nodes to the base station. As the available energy of these nodes is a critical resource, it is typically not feasible to transmit a full-resolution data feed from each sensor node to the base station. Therefore, it is important to apply techniques of data reduction so that fewer bits can be transmitted. In this work, we propose an algorithm for differentiated codification such that the sensor nodes send only the differences of their readings to a common data base. Simulation results reveal that the algorithm performs well in applications where the sensor nodes collect similar readings.
Keywords :
encoding; wireless sensor networks; data reduction; differential coding algorithm; differentiated codification; full-resolution data feed; sensor nodes; wireless sensor networks; Base stations; Data communication; Data processing; Feeds; Logic; Proposals; Redundancy; Technological innovation; Wireless application protocol; Wireless sensor networks;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008. IEEE 19th International Symposium on
Conference_Location :
Cannes
Print_ISBN :
978-1-4244-2643-0
Electronic_ISBN :
978-1-4244-2644-7
DOI :
10.1109/PIMRC.2008.4699812
