FPGA Implementation of Reconfigurable Modulation Scheme and Hamming Encoder for Cognitive Radio

FPGA Implementation of Reconfigurable Modulation Scheme and Hamming Encoder for Cognitive Radio
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© 2023 by IJETT Journal
Volume-71 Issue-3
Year of Publication : 2023
Author : M. A. Usha Rani, C. R. Prashanth
DOI : 10.14445/22315381/IJETT-V71I3P227

How to Cite?

M. A. Usha Rani, C. R. Prashanth, "FPGA Implementation of Reconfigurable Modulation Scheme and Hamming Encoder for Cognitive Radio," International Journal of Engineering Trends and Technology, vol. 71, no. 3, pp. 261-275, 2023. Crossref, https://doi.org/10.14445/22315381/IJETT-V71I3P227

Abstract
Cognitive Radio (CR) is broadly accepted as a wireless communication technology because the CR minimizes the problem of bandwidth shortages by using idle spectrum. However, the development of the communication application of CR is vulnerable to noise and high resource consumption. This paper proposes the Reconfigurable Modulation Scheme (RMS) approach and the Hamming Encoder (HE) to improve communication over the CR. Instead of using Digital modulation techniques like QPSK, QAM and BPSK in the spectrum sensing, the RMS technique is used for less hardware utilization. These three modulation techniques (QPSK, QAM, and BPSK) are performed in a single RMS, whereas the HE is used to perform the error correction process. Here, the Field Programmable Gate Array (FPGA) based CR communication is developed RMS, and HE is developed by using the Xilinx ISE 14.2 software. The developed RMS-HE-FPGA architecture was also analysed by using a hardware development board, i.e., Spartan 6 FPGA. The performance of the RMS-HE-FPGA architecture is analyzed in terms of all aspects related to FPGA.

Keywords
Cognitive radio, Error correction process, Field programmable gate array, Hamming encoder, Hardware utilization, Reconfigurable modulation scheme.

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