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A cost effective impedance measurement system and a low cost
transceiver device has been presented for
wireless body sensor systems.The proposed device has an analog f
ront end to measure bioimpedance and
ZigBee device which provides reliable wireless communicatio
n.Bioelectric Impedance measurement
enables to characterize the state of tissues.Tetrapolar me
thod is an advance method for measuring
impedance since it is a very easy and simple method for practi
cal implementation.The principle of modified
tetrapolar method and its wireless transimission through zi
gbee has been investigated here.Different
modulation technique has been applied and it has been found that M
SK based transceiver is an efficient
one since it has low bit error rate and it produce constant enve
lope carrier signals which have no
amplitude and phase varations,hence it will be a more power s
aving technique.
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