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Simplified Turbo Decoder Design for Energy Efficient Wireless Sensor Networks

Monisha.V, S. Angeline Grace Stella

Turbo codes offer low transmission energy consumption hence they are used in energy constrained wireless communication applications. BCJR algorithms are used in the Turbo Decoder. Energy consumption is an important factor in the wireless sensor networks which has to be minimum. Hence we use LUT log BCJR architecture. SBGT-BCJR algorithm is implemented in this paper . In the SBGT algorithms the complexity of computations increase but the memory requirement reduces. SBGT is modified BCJR algorithm which reduces the energy consumption than other BCJR architectures and also increases the throughput.