Optimizing uplink TCP-ACK transmission in WiMAZ OFDMA systems

Byongkwon Moon, Jeonghoon Mo

Research output: Contribution to journalArticle

5 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 Dec 1

All Science Journal Classification (ASJC) codes

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

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