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.