A channel adaptive ACK mechanism in high rate wireless personal area networks

Jong In Lee, Wonjung Kim, Taewon Song, Sangheon Pack, Chul Hee Kang, Sungho Hwang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


In IEEE 802.15.3 wireless personal area networks, the acknowledgement (ACK) mechanism has significant impact on the overall throughput. In this paper, we propose a channel adaptive ACK (CA-ACK) mechanism where an ACK is selectively transmitted depending on wireless channel conditions to maximize the data throughput. Specifically, an ACK is transmitted only when the frame error rate is greater than a pre-defined threshold; this threshold is derived for a given payload size and data rate using developed analytical models. Simulation results demonstrate that CA-ACK improves the throughput adaptively to varying channel conditions.

Original languageEnglish
Pages (from-to)473-488
Number of pages16
JournalWireless Personal Communications
Issue number2
Publication statusPublished - 2012 Sept

Bibliographical note

Funding Information:
Acknowledgments This work was supported in part by the IT R&D program of MKE/KEIT. [KI001855, Wireless Local Area Communication Systems on Tera Hertz Band], in part by WCU (World Class University) Project (R33-2008-000-10044-0), and in part by the KRF grant (KRF-2008-314-D00354) through the NRF funded by the MEST.


  • Acknowledgement (ACK) frame
  • Channel-adaptive acknowledgement
  • IEEE 802.15.3
  • Wireless personal area network

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering


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