Performance enhancement of LOG MAP Turbo Decoder for mobile applications

Abstract

In mobile communication, transmission should be with least delay meeting the performance requirements. Turbo code has proven its effectiveness in the field of wireless communication system. The purpose of this paper is to implement the LOG MAP Turbo Decoder in VHDL. As it helps to achieve the highest coding gain therefore It is said, the best coding scheme for the error correction in high-speed wireless communication systems. However, the implementation of various Turbo Decoders suffers from a large propagation delay and high power consumption. For this reason, they are not suitable for Mobile communication applications. Hence, by implementing a Log Map Turbo Decoder in mobile handsets would make the processing fast as well as increase the quality of signal and accuracy of our whole system. It can be created by a serial connection of a turbo encoder and a decoder. The purpose of this paper is to implement the LOG MAP Turbo Decoder in VHDL with minimized delay.