In this paper we design a cognitive access scheme for WSNs that coexist with WLANs, considering the problem of blind and hidden WLAN terminals. The cognitive access scheme relies on a-priory known WLAN idle time distribution functions and repeated channel measurements to optimize the size of the transmitted data unit and the transmission distance, such that the normalized transmission energy is minimized. We compare the proposed scheme with simple carrier sensing and random access solutions and show that the energy gain is significant under typical WLAN utilization values. © 2011 ICST.
Cognitive WSN transmission control for energy efficiency under WLAN coexistence / Ioannis, Glaropoulos; Viktoria, Fodor; Pescosolido, Loreto; Petrioli, Chiara. - STAMPA. - (2011), pp. 261-265. (Intervento presentato al convegno 2011 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2011 tenutosi a Osaka nel 1 June 2011 through 3 June 2011) [10.4108/icst.crowncom.2011.245884].
Cognitive WSN transmission control for energy efficiency under WLAN coexistence
PESCOSOLIDO, Loreto;PETRIOLI, Chiara
2011
Abstract
In this paper we design a cognitive access scheme for WSNs that coexist with WLANs, considering the problem of blind and hidden WLAN terminals. The cognitive access scheme relies on a-priory known WLAN idle time distribution functions and repeated channel measurements to optimize the size of the transmitted data unit and the transmission distance, such that the normalized transmission energy is minimized. We compare the proposed scheme with simple carrier sensing and random access solutions and show that the energy gain is significant under typical WLAN utilization values. © 2011 ICST.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
