Fixed-Point AWGN Channel

The AWGN Channel IP is a noise generator capable of processing up to a maximum of 512 symbols in parallel. The IP was developed with the aim of allowing the performance evaluation of a digital communication system in the presence of Additive White Gaussian Noise. The emphasis is on evaluating systems with low bit error rates. Unlike a software-based AWGN generator, which might take several hours and even days for the stated purpose, a hardware-based AWGN generator requires significantly less time. Run-time is reduced by several orders of magnitude.

• Support for up to 256 symbols in parallel at 210 MHz
• Support for SNR (ES/N0) in the range from -10 to 41dBwith steps of 0.1 dB±~ 0.01dB
• Synchronous design with one clock
• Noise sequence periodically generated at ~264≈2x1019samples
• Based on Box-Muller algorithm and Central Limit Theorem (CLT)

• Design-time configuration of the number of symbols in parallel, quantization of input and output and precalculation of standard variation, for adjustment of resource utilization.
• Low-power and low-complexity design.
• AXI4-Stream interface for easy integration.
• Available for ASIC and FPGAs (Xilinx, Intel).

• Digital communication systems for which an AWGN channel is required

• VHDL source code or synthesized netlist
• HDL simulation models e.g. for Aldec’s Riviera-PRO
• VHDL testbench
• Bit-accurate Matlab, C or C++ simulation model
• Comprehensive documentation