FPGA Implementation of High Speed Latency Optimized Optical Communication System Based on Orthogonal Concatenated Code

Abstract

There is an immense need of very high speed robust data communication in many critical applications like radar communication, satellite communication, high energy physics experiment (HEP) and biomedical instrumentation etc. Transient errors due to radiation and other environmental hazards are responsible to create some temporary malfunctions in such high speed communication system. Concatenated code can make the high speed communication more robust against transient errors. This paper presents a novel design of latency optimized optical communication system involving orthogonal concatenated code generated through BCH code (named after Raj Bose and D. K. Ray-Chaudhuri) and Hamming code as component code and its efficient implementation on hardware using Kintex-7 FPGA board. Our design optimizes the transmission latency of the system to a great extent and makes it extremely efficient for real time high data rate applications. We have successfully tested our design for board to board communication over latency optimized optical link at ~5 Gbps data rate. Resource utilization, power estimation and bit error rate (BER) of our implemented system are also reported.