Nabipoor - SiliconI ntelligenceL aborat ory School of ECE, University of Tehran , Tehran,IRAN
Khodaian - SiliconI ntelligenceL aborat ory School of ECE, University of Tehran , Tehran,IRAN
Rahimamian - SiliconI ntelligenceL aborat ory School of ECE, University of Tehran , Tehran,IRAN
Fakhraie - SiliconI ntelligenceL aborat ory School of ECE, University of Tehran , Tehran,IRAN

Quantitative systent-level and architectural comparative results for Sofi Input Soft Output (SISO) block of nrbo decoder are presented in this paper. The obtained information helps digital system designers to choose optimum approach according to the given hardtvare implementation constraints. Simulationbased and analytic evaluations are performed and the resttlts are justified to prottide a direction to the designers. Size of internal memories and logic cells can be chosen using provided data on effects of architectural and system-level choices on the area and speed of the implemented schente for SISO block. MATLAB simulations, HDL ntodeling and verification results are also considered in this oaoer.

Turbo decoder, Hardware Consideration