FH-OFDM Modem

The Wasiela FH-OFDM modem is developed for OFDM applications used in frequency hopping transmission scenarios or fixed frequency scenarios.

Applications
OFDM applications in frequency hopping transmission scenarios, with an option of fixed frequency transmission

Benefits
● Point to Point, FDD transmission.
● Optional use of fixed frequency or frequency hopping operations.
● Supported hopping rate: 1K hop/sec.
● Supported number of hopping channels up to 32.
● The maximum supported distance is 40 Km.
● Automatic Gain Control (AGC) operation supported.
● Adaptive Coding & Modulation (ACM) supported.
● Pilot rotations supported.
● Achievable throughput of up to 114.65 Mbps in frequency hopping mode, and up to 158.72 Mbps in fixed frequency mode of operation.

Features
● Supports LDPC code: AR4JA for rates (½, ⅔, and ⅘) and info block length (1024, 4096) bits.
● Supported OFDM sizes: 32, 64, 128, 256, 512.
● Supported modulation orders: BPSK up to 256 QAM.
● Supported oversampling ratios (4, 8).
● CRC-32 for all the FEC frames.
● Supported SFO up to 16 ppm.
● Supported CFO up to 80 KHz.

Deliverables
● Synthesizable Verilog
● System Model (Matlab)
● Verilog Test Benches
● Documentation
● FPGA testing environment