Warning: pg_query(): Query failed: ERROR: missing chunk number 0 for toast value 29512337 in pg_toast_2619 in /dati/webiit-old/includes/database.pgsql.inc on line 138 Warning: ERROR: missing chunk number 0 for toast value 29512337 in pg_toast_2619 query: SELECT data, created, headers, expire, serialized FROM cache_page WHERE cid = 'https://www-old.iit.cnr.it/node/7771' in /dati/webiit-old/includes/database.pgsql.inc on line 159 Warning: pg_query(): Query failed: ERROR: missing chunk number 0 for toast value 29512337 in pg_toast_2619 in /dati/webiit-old/includes/database.pgsql.inc on line 138 Warning: ERROR: missing chunk number 0 for toast value 29512337 in pg_toast_2619 query: SELECT data, created, headers, expire, serialized FROM cache_page WHERE cid = 'https://www-old.iit.cnr.it/node/7771' in /dati/webiit-old/includes/database.pgsql.inc on line 159 An Adaptive Algorithm for Dynamic Tuning of MAC Parameters in IEEE 802.15.4/ZigBee Sensor Networks | IIT - CNR - Istituto di Informatica e Telematica
IIT Home Page CNR Home Page

An Adaptive Algorithm for Dynamic Tuning of MAC Parameters in IEEE 802.15.4/ZigBee Sensor Networks

Recent studies have highlighted that IEEE 802.15.4 based wireless sensor networks (WSNs) suffer from a severe unreliability problem due to the default MAC parameters setting suggested by the standard, although with a more appropriate choice it is possible to achieve the desired reliability and better energy efficiency. However, such setting is strictly related to the operating conditions which, in general, vary over time and thus cannot be predicted in advance (i.e., before the deployment). In this paper, we propose an ADaptive Access Parameters Tuning (ADAPT) algorithm for dynamically adjusting the MAC parameters, based on the desired level of reliability and actual operating conditions experienced by the sensor nodes. Simulation experiments demonstrate that the ADAPT algorithm is able to provide the desired reliability with a very low energy expenditure, even under operating conditions that dynamically change with time.


PerSeNS 2010, Mannheim , 2010

Autori esterni: Giuseppe Anastasi (Dept. of Information Engineering University of Pisa, Italy), Mario Di Francesco (CReWMaN University of Texas at Arlington, USA), Sajal K. Das (CReWMaN University of Texas at Arlington, USA), Vincenzo Neri (Dept. of Information Engineering University of Pisa, Italy)
Autori IIT:

Tipo: Articolo in Atti di convegno internazionale
Area di disciplina: Information Technology and Communication Systems

Attività: Opportunistic Networking and Computing