Novel Real-Time Decision-Based Carrier Tracking for Software-Defined Radios Using M-ARY QAM Modulation
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Date
2023
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Abstract
In this paper, a scalable and real-time decision-based carrier tracking for software defined radio (SDR)
for M-ary QAM modulation has been proposed and tested in real-time using the universal software
radio peripheral (USRP)-2922. The proposed system provides real-time decision-based carrier tracking
for improved efficiency and performance. The real-time transfer of data has been done using the
USRP-2922 hardware using the M-ary QAM modulation scheme for data transmission. The novelty
of the proposed system is that one can transfer random data (binary bits), text or an image which can
be encoded using the desired forward error correction codes (FEC) namely the convolution coding/
Viterbi soft decision decoding and the turbo coding/decoding. The proposed novel SDR transceiver
system with real-time decision-based carrier tracking shows an improved performance for different
parameters such as the bit error rate (BER) and signal to noise ratio (Eb/No).