FPGA-based experimental board for error control codes

Abstract

This paper proposed an experimental device that emulates and facilitates teaching the theoretical concepts of error-control coding (ECC) techniques. Two prototypes laboratory boards were designed and implemented. The first board simulates the transmitter side of a typical digital communication system. It mainly contains a data source, (7,4) Hamming encoder, cyclic redundancy check encoder (CRC), and Gaussian noise generator. The second board has two types of Hamming decoders, a syndrome decoder, and a maximum likelihood (ML) decoder that accepts the received soft signals at the channel output. Each board has several control switches so that the trainee can change the code variables, noise power, user ID, in addition to display tools such as light-emitting diodes (LEDs), and test points for the oscilloscope that help the user to observe the results. Moreover, results and setting variables can also be displayed on a PC’s screen connected through a USB port and organic light emitting diodes (OLED) display that is attached to the receiver board. The pipelining architecture of the field programmable gate array (FPGA) device was exploited in this proposed system to reduce the processing delay and hence increase the data throughput. Furthermore, we proved that both theoretical and experimental tests are identical.

FPGA implementation of DTCWT architecture's high-speed DA structure for OFDM-based transceiver with CS

“…Recent research works have shown a growing interest in RF budget analysis and FPGA implementation of mm-wave supported transceivers with CS and DTCWT for wireless communication systems. Researchers [15] and [16] designed and implemented an FPGA-based mm-wave transceiver for 5G mobile communications. They utilized CS to reduce the number of samples needed to retrieve the transmitted signal, resulting in lower computing complexity and hardware requirements.…”

Impulsive noise mitigation based adaptive filtering and Reed Solomon coding for power line communication

“…2149 ratio (k/n) is called the code rate. Dealing with this code as a non-binary error correcting code over galois field (GF) (2 𝑚 ), then this RS code can correct up to [18], [19].…”