Optimizing uplink TCP-ACK transmission in WiMAZ OFDMA systems

Byongkwon Moon, Jeonghoon Mo

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


In WiMAX networks, a bandwidth request-grant process is required for uplink operation. However, the process is not optimized for TCP, since the uplink ACK stream is disrupted due to the following: (a) The process consists of several stages which in turn introduce big transmission delay; and (b) it requires additional uplink bandwidth which is significant compared to the ACK packet size. In this paper, the authors propose a new ACK transmission scheme, where ACK packets are combined with a bandwidth request (BR) header. Through simulation, it is demonstrated that the proposed scheme reduces the overheads of TCP-ACK transmissions effectively.

Original languageEnglish
Pages (from-to)256-258
Number of pages3
JournalIEEE Communications Letters
Issue number4
Publication statusPublished - 2008

Bibliographical note

Funding Information:
Manuscript received November 5, 2007. The associate editor coordinating the review of this letter and approving it for publication was J. Gozalvez. This work is supported by the ITRC program of the MKE, Korea under IITA-2008-C1090-0801-0037. B. Moon is with the ETRI, Gwangju, Korea (e-mail: bkmoon@etri.re.kr). J. Mo (corresponding author) is with the Department of Information and Industrial Engineering, Yonsei University, Seoul, Korea (e-mail: j.mo@yonsei.ac.kr). Digital Object Identifier 10.1109/LCOMM.2008.071849.

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering


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