OFDM AND SOQPSK TRANSCEIVER HARDWARE IMPLEMENTATION WITH PRELIMINARY RESULTS

Abstract

This paper presents a hardware implementation of a transceiver capable of both orthogonal frequency-division multiplexing (OFDM) and shaped-offset quadrature phase shift keying (SOQPSK) transmissions using a dataflow programming language. Based on the physical layer iNET standard, we introduce a transceiver implementation that utilizes both waveforms with low density parity check (LDPC) forward error correction (FEC) codes. This testbed is intended to test and enable an adaptive algorithm that uses both waveforms as its modulation schemes. As such, it has the ability to dynamically select various modulation parameters and coding rates. The hardware implementations are described and performance utilizations are presented.