Performance Evaluation of 2×2 Switched Beam Antennas with Null Locating for Wireless Mesh Networks
A concept of switched beam antennas consisting of
2×2 rectangular array spaced by λ/4 accompanied with a null locating
has been proposed in the previous work. In this letter, the
performance evaluations of its prototype are presented. The benefits
of using proposed system have been clearly measured in term of
signal quality, throughput and delays. Also, the impact of position
shift which mesh router is not located on the expected beam direction
has also been investigated.
[1] B.P. Crow, I. Widjaja, L.G. Kim, P.T. Sakai, "IEEE 802.11 Wireless
Local Area Networks", Communications Magazine, IEEE , vol. 35 ,
1997, pp.116-126.
[2] Ian F. Akyildiz, Xudong Wang, and Weilin Wang, "Wireless Mesh
Networks: A Survey", Computer Networks and ISDN Systems , vol. 4,
2005.
[3] F. Babich, M. Comisso and L. Mania, Multi-Antenna Techniques for
"Wireless Mesh Networks in an Outdoor Environment",
Communications ICC '07 IEEE International Conference, 2007, pp.
4961-4966.
[4] S. P. Applebaum, "Adaptive Arrays", IEEE transaction on Antennas and
Propagation, vol 24 , pp. 585-598.
[5] W.R. Li, C.Y. Chu, K.H. Lin, S.F. Chang, "Switched-Beam Antenna
Based on Modified Butler Matrix with Low Sidelobe Level", Electronics
Letters, vol 40, 2004, pp. 290-292.
[6] S. Pradittara, P. Uthansakul, R. Wongsan and M. Uthansakul, "Null
Steering Network for Low Profile 2×2 Switch Beam Antenna",
International Symposium on Antennas and Propagation, Thailand, 20-23
October 2009.
[7] B. Raman and K. Chebrolu. "Design and Evaluation of a New MAC for
Long-Distance 802.11 Mesh Networks", In The 11th Intl. Conference on
Mobile Computing and Networking (MOBICOM), Colongne, 2005.
[8] M. Uthansakul and P. Uthansakul, "Low Profile DOA Finder at 2.4
GHz", Microwave and Optical Technology Letter, to be published on
January, 2009.
[9] H.M. Elkamchouchi, M.A.R.M. Adam, "A New Constrained Fast Null
Steering Algorithm", Antennas and Propagation Society International
Symposium IEEE, vol 2, 2000, pp. 926-929.
[10] H. Steyskal, R.A. Shore and R.L. Haupt, "Methods for Null Control and
Their Effects on the Radiation Pattern", IEEE Trans. Antennas and
Propagation, vol 34, 1986, pp. 404-409.
[11] J.A. Stine, "Exploiting smart antennas in wireless mesh networks using
contention access", IEEE Wireless Communications, vol 13, 2006, pp.
38-49.
[12] V. Jain, A. Gupta, D.P. Agrawal, "On-Demand Medium Access in
Multihop Wireless Networks with Multiple Beam Smart Antennas",
IEEE Transactions on Parallel and Distributed Systems, vol 19, 2008,
pp. 489 - 502.
[13] N. Sangmanee, P. Uthansakul, R. Wongsan, M. Uthansakul, "Finding
capability enhancement for 360-degree DOA finder", ECTI-CON 2009,
pp. 786 - 789.
[14] E. Boyer, A. Ferreol, P. Larzabal, "Simple robust bearing-range source's
localization with curved wavefronts", IEEE Signal Processing Letters,
vol 12, 2005, pp. 457 - 460.
[15] D. Astely, B. Ottersten, "The effects of local scattering on direction of
arrival estimation with MUSIC", IEEE Transactions on Signal
Processing, vol 47, 1999, pp. 3220 - 3234.
[1] B.P. Crow, I. Widjaja, L.G. Kim, P.T. Sakai, "IEEE 802.11 Wireless
Local Area Networks", Communications Magazine, IEEE , vol. 35 ,
1997, pp.116-126.
[2] Ian F. Akyildiz, Xudong Wang, and Weilin Wang, "Wireless Mesh
Networks: A Survey", Computer Networks and ISDN Systems , vol. 4,
2005.
[3] F. Babich, M. Comisso and L. Mania, Multi-Antenna Techniques for
"Wireless Mesh Networks in an Outdoor Environment",
Communications ICC '07 IEEE International Conference, 2007, pp.
4961-4966.
[4] S. P. Applebaum, "Adaptive Arrays", IEEE transaction on Antennas and
Propagation, vol 24 , pp. 585-598.
[5] W.R. Li, C.Y. Chu, K.H. Lin, S.F. Chang, "Switched-Beam Antenna
Based on Modified Butler Matrix with Low Sidelobe Level", Electronics
Letters, vol 40, 2004, pp. 290-292.
[6] S. Pradittara, P. Uthansakul, R. Wongsan and M. Uthansakul, "Null
Steering Network for Low Profile 2×2 Switch Beam Antenna",
International Symposium on Antennas and Propagation, Thailand, 20-23
October 2009.
[7] B. Raman and K. Chebrolu. "Design and Evaluation of a New MAC for
Long-Distance 802.11 Mesh Networks", In The 11th Intl. Conference on
Mobile Computing and Networking (MOBICOM), Colongne, 2005.
[8] M. Uthansakul and P. Uthansakul, "Low Profile DOA Finder at 2.4
GHz", Microwave and Optical Technology Letter, to be published on
January, 2009.
[9] H.M. Elkamchouchi, M.A.R.M. Adam, "A New Constrained Fast Null
Steering Algorithm", Antennas and Propagation Society International
Symposium IEEE, vol 2, 2000, pp. 926-929.
[10] H. Steyskal, R.A. Shore and R.L. Haupt, "Methods for Null Control and
Their Effects on the Radiation Pattern", IEEE Trans. Antennas and
Propagation, vol 34, 1986, pp. 404-409.
[11] J.A. Stine, "Exploiting smart antennas in wireless mesh networks using
contention access", IEEE Wireless Communications, vol 13, 2006, pp.
38-49.
[12] V. Jain, A. Gupta, D.P. Agrawal, "On-Demand Medium Access in
Multihop Wireless Networks with Multiple Beam Smart Antennas",
IEEE Transactions on Parallel and Distributed Systems, vol 19, 2008,
pp. 489 - 502.
[13] N. Sangmanee, P. Uthansakul, R. Wongsan, M. Uthansakul, "Finding
capability enhancement for 360-degree DOA finder", ECTI-CON 2009,
pp. 786 - 789.
[14] E. Boyer, A. Ferreol, P. Larzabal, "Simple robust bearing-range source's
localization with curved wavefronts", IEEE Signal Processing Letters,
vol 12, 2005, pp. 457 - 460.
[15] D. Astely, B. Ottersten, "The effects of local scattering on direction of
arrival estimation with MUSIC", IEEE Transactions on Signal
Processing, vol 47, 1999, pp. 3220 - 3234.
@article{"International Journal of Electrical, Electronic and Communication Sciences:58648", author = "S. Pradittara and M. Uthansakul and P. Uthansakul", title = "Performance Evaluation of 2×2 Switched Beam Antennas with Null Locating for Wireless Mesh Networks", abstract = "A concept of switched beam antennas consisting of
2×2 rectangular array spaced by λ/4 accompanied with a null locating
has been proposed in the previous work. In this letter, the
performance evaluations of its prototype are presented. The benefits
of using proposed system have been clearly measured in term of
signal quality, throughput and delays. Also, the impact of position
shift which mesh router is not located on the expected beam direction
has also been investigated.", keywords = "Antenna array, Beamforming, Null steering, WMNs.", volume = "3", number = "3", pages = "514-5", }
