Advertisement

Design and Implementation of IEEE 802.11i Architecture for Next Generation WLAN

  • Duhyun Bae
  • Jiho Kim
  • Sehyun Park
  • Ohyoung Song
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3822)

Abstract

The drive for high data rate and QoS support in wireless LANs has pushed the IEEE to develop IEEE 802.11n and IEEE 802.11e. For higher throughput, new MAC mechanisms such as Block Ack in IEEE 802.11e and frame aggregation in IEEE 802.11n are being currently discussed and these mechanisms needs short response time in each MPDU processing. In this paper, we propose a design of IEEE 802.11i hardware architecture to support these new MAC mechanisms. We reduce the response time in the crypto engine to short constant interval by using the dual S-Box scheme in WEP and TKIP processing and by adopting parallel structure in CCMP. In our method, the key management block is used to eliminate the computational burden for key and per-packet counter management in 802.11i device driver. Our design features 195 Mbps in WEP, TKIP, and 562 Mbps in CCMP throughput respectively at 50 MHz frequency, which are targeted to Altera Stratix FPGA device.

Keywords

Clock Cycle Device Driver Data Throughput Payload Size Frame Aggregation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    IEEE P802.11, The Working group for Wireless LANs, http://www.ieee802.org/11/
  2. 2.
    IEEE standard 802.11i (July 2004)Google Scholar
  3. 3.
    Whiting Hifn, D., Housley, R., Ferguson, N.: In: MacFergus, Counter with CBC- MAC(CCM) RFC 3610 (September 2003)Google Scholar
  4. 4.
    Tsoi, K.H., Lee, K.H., Leong, P.H.W.: A Massively Parallel RC4 Key Search Engine. In: IEEE Symposium on Field-Programmable Custom Computing Machines (FCCM 2002) 1082-3409/02 (2002)Google Scholar
  5. 5.
    Edney, J., Arbaugh, W.A.: Real 802.11 security: Wi-Fi Protected Access and 802.11i. Addison Wesley, Reading (2003)Google Scholar
  6. 6.
    Jang, H.Y., Shim, J.H., Suk, J.H., Hwang, I.C., Choi, J.R.: Compatible Design Of Ccmp And Ocb Aes Cipher Using Seperated Encryptor And Decryptor For Ieee 802.11I., Iscas (2004)Google Scholar
  7. 7.
    Shunman, W., Ran, T., Yue, W., Ji, Z.: WLAN and Its Security Problems. IEEE, Los Alamitos (2003)Google Scholar
  8. 8.
    Prasithsangaree, P., Krishnamurthy, P.: Analysis of Energy Consumption of RC4 and AES Algorithms in Wireless LANs. In: GLOBECOM (2003)Google Scholar
  9. 9.
    IEEE standard 802.11e/D13.0 January (2005)Google Scholar
  10. 10.
    Gast, M.S.: 802.11 Wireless Networks – 2nd Edition O’REILLY (2005)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Duhyun Bae
    • 1
  • Jiho Kim
    • 1
  • Sehyun Park
    • 1
  • Ohyoung Song
    • 1
  1. 1.School of Electrical and Electronic EngineeringChung-Ang UniversitySeoulKorea

Personalised recommendations