Performance Evaluation of AG Block Turbo Codes over Fading Channels Using BPSK

Abstract

This paper will present in details the concept of block turbo design in Algebraic Geometric (AG) codes constructed from Hermitian curves defined over finite fields, and the iterative decoding of the constructed block turbo codes using a High Input-High Output (HIHO) decoding technique based on Sakata's algorithm with Majority Voting (MV) technique and Chase-Pyndiah's Algorithm to extract a soft output from the hard output of the AG decoder. Then will present the simulation results of Bit-Error-Rate (BER) performance of Algebraic Geometric- Block Turbo Codes (AG-BTCs) compared with the BER performance of Reed Solomon- Block Turbo Codes (RS-BTCs) of about same size and relatively similar rate over different finite fields using Binary Phase Shift Keying (BPSK) modulation scheme.