Two-stage configurable decoder model for multiple forward error correction standards

Recently, various mobile terminals such as mobile phone and personal digital assistance (PDA), etc. are widely spreading out in our daily life. Multimedia application is often executed on such mobile terminals, and these terminals often tightly coupled with wireless communication. Forward error correction (FEC) is one of important and heavy tasks for wireless communication. Leading edge mobile embedded systems usually support not only one FEC standard, but multiple FEC standards in order to adapt to various wireless communication standards. In this paper, we propose two-stage configurable decoder model for multiple FEC standards for Viterbi and Turbo coding which have a variation under the constraint length, coding rate, etc. Proposed decoder model realizes a decoder instance which supports dedicated multiple FEC standards. Proposed decoder model is configurable in two stages: at hardware generation time and at runtime, and designers can easily specify these specifications by various design parameters. Experimental results show proposed two-stage configurable decoder model is quite reasonable as FEC decoder.