Adjusting Control Packet Transmission Intervals in Low Power Sensor Systems

Gangman Yi, Daeun Yu, Namgi Kim

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

In order to construct an efficient wireless sensor system, it is necessary to increase the lifetime of its battery-operated sensor nodes. To this end, a wireless body sensor system adopts a transmission power control (TPC) mechanism. However, existing TPC mechanisms adjust the transmission power level (TPL) according to the received signal strength indication (RSSI) value of the most recently received data packet. Therefore, they do not effectively cope with dynamically changing wireless body channel environments. In particular, when a wireless channel is unstable, changes in the TPL should be avoided to prevent energy consumption due to unnecessary transmission and reception of control packets. Accordingly, this paper proposes a new TPC mechanism that adaptively changes the control packet transmission interval on the basis of the current channel condition. Further, actual sensors are used to experimentally verify that the proposed mechanism (1) performs well in all channel environments and (2) facilitates the construction of an efficient wireless body sensor system.

Original languageEnglish
Article number139682
JournalInternational Journal of Distributed Sensor Networks
Volume2014
DOIs
StatePublished - 2014

Fingerprint

Dive into the research topics of 'Adjusting Control Packet Transmission Intervals in Low Power Sensor Systems'. Together they form a unique fingerprint.

Cite this