Error control schemes for networks: an overview
Mobile Networks and Applications
Wireless sensor networks for habitat monitoring
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
Optimizing Sensor Networks in the Energy-Latency-Density Design Space
IEEE Transactions on Mobile Computing
Spatial TDMA and CSMA with Preamble Sampling for Low Power Ad Hoc Wireless Sensor Networks
ISCC '02 Proceedings of the Seventh International Symposium on Computers and Communications (ISCC'02)
The platforms enabling wireless sensor networks
Communications of the ACM - Wireless sensor networks
Proceedings of the 3rd international conference on Embedded networked sensor systems
Trio: enabling sustainable and scalable outdoor wireless sensor network deployments
Proceedings of the 5th international conference on Information processing in sensor networks
How public key cryptography influences wireless sensor node lifetime
Proceedings of the fourth ACM workshop on Security of ad hoc and sensor networks
Limiting end-to-end delays in long-lasting sensor networks
Proceedings of the 8th ACM international workshop on Mobility management and wireless access
ILA: idle listening avoidance in scheduled wireless sensor networks
WWIC'10 Proceedings of the 8th international conference on Wired/Wireless Internet Communications
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In this paper we discuss the lifetime of an battery powered device which acts as a gateway between a wireless sensor network and a standard network. The wireless communication standards used are IEEE802.15.4 and IEEE802.11g. The two parameters which are of utmost importance but also contradicting each other are communication delay and lifetime of the gateway node. Our results clearly show that duty cycling i.e. switching off the gateway node improves its lifetime. Depending on the radio modules used the lifetime can be increased from seven hours up to 3 months using only 3 AA batteries. Our results also proove that prolonging the sleep intervals beyond a certain limit (about 10 seconds for a typical WLAN PC card) does not longer improve the lifetime but only worsens the delay.