KSII Transactions on Internet and Information Systems (TIIS)

Korean Society for Internet Information (한국인터넷정보학회)
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A Practical Unacknowledged Unicast Transmission in IEEE 802.11 Networks

  • Yang, Hyun (School of Computer Science and Engineering, Chung-Ang University) ;
  • Yun, Jin-Seok (School of Computer Science and Engineering, Chung-Ang University) ;
  • Oh, Jun-Seok (School of Computer Science and Engineering, Chung-Ang University) ;
  • Park, Chang-Yun (School of Computer Science and Engineering, Chung-Ang University)
  • Received : 2010.08.22
  • Accepted : 2011.02.22
  • Published : 2011.03.31
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Abstract

In current IEEE 802.11 wireless LAN, every unicast transmission requires an ACK from the receiver for reliability, though it consumes energy and bandwidth. There have been studies to remove or reduce ACK overhead, especially for energy efficiency. However none of them are practically used now. This paper introduces a noble method of selective unacknowledged transmission, where skipping an ACK is dynamically decided frame by frame. Utilizing the fact that a multicast frame is transmitted without accompanying an ACK in 802.11, the basic unacknowledged transmission is achieved simply by transforming the destination address of a frame to a multicast address. Since removing ACK is inherently more efficient but less strict, its practical profit is dependent on traffic characteristics of a frame as well as network error conditions. To figure out the selective conditions, energy and performance implications of unacknowledged transmission have been explored. Extensive experiments show that energy consumption is almost always reduced, but performance may be dropped especially when TCP exchanges long data with a long distance node through a poor wireless link. An experiment with a well-known traffic model shows that selective unacknowledged transmission gives energy saving with comparable performance.

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References

  1. IEEE Standard for Information Technology Part 15.4: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low-Rate Wireless Personal Area Networks (LR-WPANs), IEEE Standard 802.15.4, 2006.
  2. IEEE Standard for Information Technology Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications Amendment 8: Medium Access Control (MAC) Quality of Service Enhancements, IEEE Standard 802.11e, 2005.
  3. IEEE Standard for Information Technology Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications, IEEE Standard 802.11, 2007
  4. David Murray, Terry Koziniec and Michael Dixon, "Solving Ack inefficiencies in 802.11 networks," in Proc. of IEEE Conf. on Internet Multimedia Services Architecture and Applications, pp.1-6, 2009.
  5. Ronny Krashinsky and Hari Balakrishnan, "Minimizing Energy for Wireless Web Access with Bounded Slowdown," in Proc. of ACM Conf. on Mobile Computing and Networking, pp.119-130, 2002.
  6. Wei. Ye, John. Heidemann and Deborah Estrin, "An Energy-efficient MAC protocol for wireless sensor networks," in Proc. of IEEE Conf. Computer Communications, pp.1567-1576, 2002.
  7. Amre El Hoiydi, Jean Dominique Decotignie, Christian C Enz and E Le Rouxz, "WiseMAC: An Ultra Low Power MAC Protocol for the WiseNET Wireless Sensor Network," in Proc. of ACM Conf. on Embedded Networked Sensor Systems, pp.302-303, 2003.
  8. Sally Floyd, Van Jacobson, Ching Gung Liu, Steven McCanne and Lixia Zhang, "A Reliable Multicast Framework for Light-weight Sessions and Application Level Framing," IEEE/ACM Networking, vol.5, no.6, pp.784-803, 1997. https://doi.org/10.1109/90.650139
  9. "Wi-Fi MultimediaTM," [Online]. Available: http://www.wifi.org/knowledge_center/wmm/
  10. 3GPP TS 25.322 V5.13.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Radio Link Control (RLC) protocol specification (Release 5).
  11. "Academic Research Group," [Online]. Available: https://research.sprintlabs.com
  12. "IEEE OUI and Company_id Assignments," [Online]. Available: http://standards.ieee.org/regauth/oui/index.shtml
  13. Kevin Fall and Kannan Varadhan, "The ns Manual," The VINT Project.
  14. "Energy Model in ns," [Online]. Available: http://www.isi.edu/nsnam/ns/doc/node224.html
  15. Larry L. Peterson and Bruce S. Davie, "Computer Networks a Systems Approach, 3rd ed.,"Morgan Kaufmann, pp. 92-93, 2003.
  16. Mario Gerla, M. Y. Sanadidi, Ren Wang and Anrea Zanella, "TCP Westwood: Congestion Window Control Using Bandwidth Estimation," in Proc. of IEEE Conf. on Global Telecommunications, pp.1698-1702, 2001.
  17. "The IO Graphs window," [Online]. Available: http://www.wireshark.org/docs/wsug_html_chunked/ChStatIOGraphs.html
  18. C. R. Simpson, Jr., D. Reddy and G. F. Riley, "Empirical Models of TCP and UDP End-User Network Traffic from NETI@home Data Analysis," in Proc. of 20th Principles of Advanced and Distributed Simulation Workshop, pp.166-174, 2006.