Generic Open Source Viterbi Decoder

Convolutional codes are widely adopted in wireless communication systems for forward error correction. Creonic offers you a certified open source Viterbi decoder IP core with AXI4-Stream interface that is capable of decoding most of the convolutional codes as defined by various standards.

• Design-time configuration of encoder polynomials (different number of states and different code rates)
• Support for recursive and non-recursive convolutional codes
• Windowing technique for reduced latency and memory requirements (with acquisition)
• Design-time configuration of quantization, maximum window size, RAM usage (distributed RAM vs. Block RAM)
• Run-time configuration of block length
• Run-time configuration of window length and acquisition length
• Block-to-block on-the-fly configuration

• Configurable for most standards that apply convolutional codes (GSM, UMTS, CDMA, CDMA2000, WiMAX, WiFi, DAB, DVB, GMR, WiMedia …)
• Pipelined design for high payload throughputs (about 1 bit per clock cycle).
• AXI4-Stream interface for simple integration
• Up to 250 MHz on AMD Xilinx Virtex-6 FPGA (Speedgrade 1)
• VHDL source code available under GPL license (hosted at opencores.org)
• Certified by OpenCores
• Commercial support and licenses available

• Mobile Communications
• Digital Video Broadcasting
• Digital Audio Broadcasting
• Satellite Modems
• Satellite Phones
• Trunked Radio Systems
• Microwave Links
• Ultra-wideband (UWB)
• Wireless Personal Area Networks (WPAN)
• Wireless Local Area Networks (WLAN)
• and many more.

• VHDL source code, VHDL testbench, documentation.