公司名：Unicore Systems

详细描述：Error-correcting coding is an essential tool for enabling reliable communication. Unicore Systems provide an Intellectual Property (IP) core for hardware-efficient implementation of low-density parity-check (LDPC) forward error correcting (FEC) schemes intended for the IEEE 802.16e [1] and for the 802.11n[2]. The IP core covers the entire WiMaX and WiFi LDPC specification, in terms of block size and code rate.WiFi mode,WiMax mode, block size and code rate can be switched on a block-by-block basis.

特色：WiMax 19 code length supported (Z factor 24,28...96);

  WiFi 3 code length supported (Z factor 27,54,81);

  WiMax all code rates 1/2, 2/3A, 2/3B, 3/4A, 3/4B, 5/6 supported;

  WiFi all code rates 1/2, 2/3, 3/4, 5/6 supported;

 parameterized input data width 5-8 bit (in compilation phase);

 parameterized internal data width 6-9 bit (in compilation phase);

 nearly floating point performance with quantization of 5 input bits

and internal computation in 8 bits (less then 0.15 dB from floating

point BP with 30 iterations);

 early stop detection unit ;

 parallelism degree 96;

 bit-LLR input

 decoded throughput up to 193 Mbit/sec (Virtex-4 -12 speed grade)

for WiMax mode. (Z=96, 15 iterations, Fclk=160 MHz)

 decoded throughput up to 164 Mbit/sec (Virtex-4 -12 speed grade)

for WiFi mode. (Z=81, 15 iterations, Fclk=160 MHz)

 Free LDPC Encoder IP core comes with the Decoder

应用：IEEE 802.16e

交付项：RTL Verilog source code or synthesized netlist;