English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Turbo code is a great achievement in the field of communication system. Itcan be created by connecting a turbo encoder and a decoder serially. A Turboencoder is build with parallel concatenation of two simple convolutional codes.By varying the number of memory element (encoder configuration), code rate (1/2or 1/3), block size of data and iteration, we can achieve better BERperformance. Turbo code also consists of interleaver unit and its BERperformance also depends on interleaver size. Turbo Decoder can be implementedusing different algorithm, but Log -MAP decoding algorithm is lesscomputationaly complex with respect to MAP (maximux a posteriori) algorithm,without compromising its BER performance, nearer to Shannon limit. A registertransfer level (RTL) turbo encoder is designed and simulated using VHDL (Veryhigh speed integrated circuit Hardware Description Language). In this paperVHDL model of different turbo encoder are implemented using Log MAP decoder andits performance are compared and verified with corresponding MATLAB simulatedresults.

VHDL Implementation of different Turbo Encoder using Log-MAP Decoder