Dear all, My question is actually a sanity-check of the energy consumption of IEEE 802.15.4 sensor nodes. I have a very simple simulation with a handful of wireless nodes employing IEEE 802.15.4 (ns2.29 code) and a wired sink. I have assumed 2AA batteries as the energy source, translating into 30.8 KJ for each sensor. There is no sleeping mode for the sensors, whenever they are not transmitting or receiving, they are in idle state. The transmission rate is 250 Kbps (@2.4GHz).
If I run a simulation with 3 flows at 1 packet per second for a whole day (86.400 secs), the energy they are consuming is only around 250-300 J. Does this seem fairly reasonable to you? I was expecting their energy to be depleting much sooner since they are not using any sleeping schedule. Cheers, Athanasia PS. *other parameters I have used are: set opt(txpow) 0.0522 ;#calculated from P=VI with 17.4mA that corresponds to 0dBm TX power from MICAZ datasheet set opt(rxpow) 0.0591 ;# 19.7mA current drain set opt(idpow) 0.00006 ;#20 \uA set opt(slpow) 0.000003 ;# 1\uA -- Ms Athanasia Tsertou Research Associate Institute for Digital Communications School of Engineering and Electronics The University of Edinburgh Room 2.12, AGB Building, The Kings Buildings, Mayfield Road Edinburgh, EH9 3JL UK Tel:+44 (0)1316505659 Fax:+44 (0)1316506554 Email:[EMAIL PROTECTED]
