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Improved random channel access for OFDMA wireless networks

Goutam Das (UGent) , Bart Lannoo (UGent) , Didier Colle (UGent) , Mario Pickavet (UGent) and Piet Demeester (UGent)
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Abstract
In this paper we propose a new random channel access protocol to reduce the channel access delay in a multichannel orthogonal frequency division multiple access (OFDMA) wireless networks. In particular, we propose a two dimensional random walk through time and frequency domain slots simultaneously to reduce the random channel access delay for the IEEE 802.16e-2005 based WiMAX media access control (MAC) protocol. We prove through simulation that our proposed scheme improves upon the existing random channel access mechanism with truncated binary back-off, currently implemented in WiMAX. We demonstrated that with our proposed channel access mechanism, a mobile node with real time traffic requirements will have minimum service disruption due to the reduced delay in the initial ranging and the bandwidth request phase while changing rooms.
Keywords
WiMAX, OFDMA, Random Channel Access

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Citation

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Chicago
Das, Goutam, Bart Lannoo, Didier Colle, Mario Pickavet, and Piet Demeester. 2011. “Improved Random Channel Access for OFDMA Wireless Networks.” In IEEE Wireless Communications and Networking Conference (WCNC), 315–320. Piscataway, NJ, USA: IEEE.
APA
Das, G., Lannoo, B., Colle, D., Pickavet, M., & Demeester, P. (2011). Improved random channel access for OFDMA wireless networks. IEEE Wireless Communications and Networking Conference (WCNC) (pp. 315–320). Presented at the IEEE Wireless Communications and Networking Conference (WCNC - 2011), Piscataway, NJ, USA: IEEE.
Vancouver
1.
Das G, Lannoo B, Colle D, Pickavet M, Demeester P. Improved random channel access for OFDMA wireless networks. IEEE Wireless Communications and Networking Conference (WCNC). Piscataway, NJ, USA: IEEE; 2011. p. 315–20.
MLA
Das, Goutam, Bart Lannoo, Didier Colle, et al. “Improved Random Channel Access for OFDMA Wireless Networks.” IEEE Wireless Communications and Networking Conference (WCNC). Piscataway, NJ, USA: IEEE, 2011. 315–320. Print.
@inproceedings{1268195,
  abstract     = {In this paper we propose a new random channel access protocol to reduce the channel access delay in a multichannel orthogonal frequency division multiple access (OFDMA) wireless networks. In particular, we propose a two dimensional random walk through time and frequency domain slots simultaneously to reduce the random channel access delay for the IEEE 802.16e-2005 based WiMAX media access control (MAC) protocol. We prove through simulation that our proposed scheme improves upon the existing random channel access mechanism with truncated binary back-off, currently implemented in WiMAX. We demonstrated that with our proposed channel access mechanism, a mobile node with real time traffic requirements will have minimum service disruption due to the reduced delay in the initial ranging and the bandwidth request phase while changing rooms.},
  articleno    = {12031286},
  author       = {Das, Goutam and Lannoo, Bart and Colle, Didier and Pickavet, Mario and Demeester, Piet},
  booktitle    = {IEEE Wireless Communications and Networking Conference (WCNC)},
  isbn         = {9781612842547},
  keyword      = {WiMAX,OFDMA,Random Channel Access},
  language     = {eng},
  location     = {Cancun, Mexico},
  pages        = {12031286:315--12031286:320},
  publisher    = {IEEE},
  title        = {Improved random channel access for OFDMA wireless networks},
  url          = {http://dx.doi.org/10.1109/WCNC.2011.5779150},
  year         = {2011},
}

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