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Viterbi K=7 decoder for Wireless LAN (802.11)

K=7 (64 states) G0=171(octal), G1=133(octal).
Rate ½. Other rates can be supplied by external puncturing.
Parameterizable algorithm radix, 2, 4 or 8.
Parameterizable soft input width.
Parameterizable traceback length (memory depth).
On the fly configurable traceback length, to support low latency.
Zero delay between packets.
Memory type (SRAM / register file), supports Altera/Xilinx coding style for easy synthesis.
Optional controls (decoder_en - for discontinuous data stream, decoder_abort - to reset the decoder).
Supports low power features (clock gating, grey decoding, ...)
Area/Power efficient architecture utilizing RAM for trace back storage.
All-synchronous design using a single clock, except for global asynchronous reset.
Available as verilog source code or as netlist.
Silicon proven. FPGA proven.


Decoder performance
Delay and throughput of the decoder are available with our free Viterbi delay calculator:

Download Viterbi decoder delay calculator


Performance graphs


Viterbi decoder bit error rate performance in BPSK AWGN channel

 

Ordering information
Viterbi K=7 decoder available as verilog source code or as EDIF netlist.
Delivery includes:

Verilog source code or verilog EDIF netlist.
Extensive testing environment.
Bit-exact Matlab model.
Detailed documentation.

For more information please contact us

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