Scholarlink

Reliable wireless communication in fast changing environments requires a system that can adapt to varying channel conditions. This paper presents an adaptive coding and modulation (ACM) scheme that combines both BCH error correction with a Least Squares Polynomial Fit Digital Phase-Locked Loop (LSPF-DPLL) into one system. It dynamically adjusts the BCH code rate and modulation order by switching between QPSK, 16-QAM, and 64-QAM based on Realtime SNR variations. The LSPF-DPLL highly improves phase tracking, maintains synchronization under Rayleigh, Rician, and Nakagami-m fading channels. Simulation results show how bit error rate (BER) is reduced and improved throughput compared to the fixed schemes hence offering an efficient solution for dynamic wireless channels.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Adaptive BCH-coded ACM-assisted LSPF-DPLL Scheme for BER Optimization in Dynamic Fading Environments

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Vidhyashree Sabarirajan,
  • Vignesh Janarthanan,
  • Leela Manoharan,
  • Ramesh Ramakrishnan

摘要

Reliable wireless communication in fast changing environments requires a system that can adapt to varying channel conditions. This paper presents an adaptive coding and modulation (ACM) scheme that combines both BCH error correction with a Least Squares Polynomial Fit Digital Phase-Locked Loop (LSPF-DPLL) into one system. It dynamically adjusts the BCH code rate and modulation order by switching between QPSK, 16-QAM, and 64-QAM based on Realtime SNR variations. The LSPF-DPLL highly improves phase tracking, maintains synchronization under Rayleigh, Rician, and Nakagami-m fading channels. Simulation results show how bit error rate (BER) is reduced and improved throughput compared to the fixed schemes hence offering an efficient solution for dynamic wireless channels.