Design & Optimization Of Low Power Turbo Decoder For Wireless Sensor Networks

In the Wireless Sensor Networks, turbo decoders have recently been considered for energy- constrain, since they facilitate low transmission energy consumption. However, in order to reduce the overall energy consumption, lookup table-log-BCJR (LUT-Log-BCJR) architectures having low processing energy consumption are required. In this proposed technique, the LUT-Log-BCJR architecture along with fundamental Add Compare Select (ACS) operations which performed by using a novel low-complexity ACS unit. The architecture employs an order of magnitude fewer gates than the most recent LUT-Log-BCJR architectures. The proposed technique will reduce nearly 10% of total power consumption.