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]. The IP core covers the entire WiMAX LDPC specification, in terms of block size and code rate.Block size and code rate can be switched on on a block-by-block basis.

特色：_ 19 code length supported;

_ all ratio 1/2, 2/3A, 2/3B, 3/4A, 3/4B, 5/6 supported;

_ on the fly change of code length and code ratio (useful for

adaptive modulation and coding systems);

_ 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 168 Mbit/sec (Virtex-4 -12 speed

grade).

_ Free LDPC Encoder IP core comes with the Decoder

应用：_ IEEE 802.16e

交付项：_ RTL Verilog source code or synthesized netlist;