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A Matched Pilot Resource Allocation Scheme for Downlink OFDMA Systems

  • 2025
  • OriginalPaper
  • Chapter
Published in:
Authors
Krishnan B. Iyengar
Raghavendra Pal
Upena D. Dalal
Anupam Shukla
Published in
Proceedings of Tenth International Congress on Information and Communication Technology
Publisher
Springer Nature Singapore

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Abstract

This chapter explores the challenges of channel estimation in downlink OFDMA systems, focusing on the high computational complexity associated with traditional comb pilot techniques. The proposed matched pilot resource allocation scheme aims to address this issue by strategically placing pilot symbols to reduce the number of complex multiplications required for channel estimation. The text delves into the system model, detailing the structure of the OFDMA frame and the placement of pilot symbols. It also compares the computational complexity of the matched pilot scheme with the comb pilot technique, highlighting the advantages of the former, especially in UWB systems with a high number of channel taps. The chapter concludes with graphical results that illustrate the reduction in complexity achieved by the matched pilot scheme, making a strong case for its adoption in practical applications.
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Title
A Matched Pilot Resource Allocation Scheme for Downlink OFDMA Systems
Authors
Krishnan B. Iyengar
Raghavendra Pal
Upena D. Dalal
Anupam Shukla
Copyright Year
2025
Publisher
Springer Nature Singapore
Book
Proceedings of Tenth International Congress on Information and Communication Technology

Print ISBN: 978-981-9669-28-8

Electronic ISBN: 978-981-9669-29-5

Copyright Year: 2025

DOI
https://doi.org/10.1007/978-981-96-6929-5_21
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