Ultra-Low Power Stacked nMOS m-Sequence Code Generator with Reduced Leakage Power for Body Sensor Node Applications

Abstract

The rapid increase in population which is itself leading to a varied type of diseases is throwing a challenge to the
medical technology nowadays. Body Sensor nodes (BSNs) are the devices which are used for the real time monitoring of
the patient’s condition. These BSNs were very helpful in exact analysis of the condition of the patients without any kind
of the physical operation. The BSNs thus has to work efficiently for the outmost applications. The power consumption of
such devices comprises of many factors which includes leakage power. The leakage power can be reduced using the
stacking technique. In this paper, nMos stacking technique is used to reduce the leakage power of m-sequence code
generator which is the main block in transmitter of BSN. Such reduction of the leakage power will lead to increase in the
energy efficiency of the BSN. 90nm CMOS technology is used to simulate the proposed m-sequence code generator. The
simulation results have shown that the proposed m-sequence code generator has less average power by having less
leakage power.