Sigma-Delta Modulation Based Adaptive Channel Equalizer Based on Wiener–Hopf Equations

Aneela Pathan, Tayab D. Memon

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Recenlty, short word length DSP systems are proposed and reported that they outperform compared to their counterpart multi-bit systems in the sense of area-performance-power analysis. In this continuation, this paper presents the application of sigma-delta modulation (SDM) in the design of adaptive channel equalizer using the Wiener filter for wireless and underwater acoustic communication (UWA). To validate the application, various aspects of design are taken into consideration and comparison is carried out with contemporary (i.e., multi-bit) approach. Besides, FPGA based implementation of SDM based design and conventional approach is also carried out to endorse the proposed algorithm to be used in hardware based implementation. The results given in terms of area -perfromance analysis show that proposed algorithm works as desired and it opens the way of using the sigma-delta modulation in adaptive signal processing domain for UWA that has remained a quite challenging task ever before.

Original languageEnglish
Pages (from-to)1123-1135
Number of pages13
JournalWireless Personal Communications
Issue number2
Publication statusPublished - Jan 2021
Externally publishedYes


  • Acoustic communication
  • FPGA
  • Short word length systems
  • Sigma-delta modulation
  • Wiener–Hopf


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