Bézier Curves-Based Novel Out-of-Path Beamforming Calibration Technique in IEEE 802.11 WLAN Networks
Beamforming is a major building block of Radio Resource Management (RRM) in WLAN networks that helps mitigate the interference and maximize the transmission opportunity of Access Points (AP) toward Wireless Devices (WD). In contrast to the related-work In-Path approaches, we propose a novel Out-Of-Path approach to beamforming calibration that is based on concepts from Computer Aided Graphical Design (CAGD) field and now-a-day network design best practices. The enhancement that the presented solution adds to the beamforming operation time and results’ accuracy is investigated. It is demonstrated that the processing of beamformer’s parameters: array elements’ signal weighting and phase shifting, to achieve the desired angle of radiation, direction of arrival and gain, is possible at Wireless Lan Controller (WLC) level in indoor controlled WLAN networks. Further, we introduce in the same context, the concept of a pseudoAP, a virtual AP that represents a cluster of all possible real AP beamformers to a given WD and investigate the enhancement that it may add. The results of both simulations show an important enchancement of the conventional beamformer processing time at AP level. But at WLC level, a trade-off exists between maximizing the transmission opportunity and reducing the required processing time.
Copyright © 2019 The Authors - Published by Praise Worthy Prize under the CC BY-NC-ND license.
M. Guessous, L. Zenkouar, Bézier curves-based novel calibration technique of beamformers in IEEE 802.11 WLAN networks, 2018 9th IFIP international Conference on New Technologies, Mobility and Security (NTMS), pp. 1–5, Paris, April 2018.
B. D. Veen, K. M. Buckley, Beamforming: a versatile approach to spatial filtering, Reflection properties of the Salisbury screen, IEEE ASSP Magazine, Volume 5, (Issue 2), April 1988, Pages 4–24. https://doi.org/10.1109/53.665
J. Lee, E. M. Ferren, D. P. Woollen, K. M. Lee, Near-field probe used as a diagnostic tool to locate defective elements in an array antenna, IEEE Transactions on Antennas and Propagation, Volume 36, June 1988, Pages 884–889.
M. Shafiee, S. Ozev, Contact-less near-field measurement of rf phased array antenna mismatches, 2017 22nd IEEE Test Symposium (ETS), pp. 1–6, Limassol, July 2017.
J. P. Brandissou, P. Maes, E. Ongareau, J. C. Sillon, J. Wyrwinski, A 30 MHz-18 GHz fully automated far-field antenna measurement system, 1993 IEEE Instrumentation and Measurement Technology Conference, pp. 178–182, Irvine, August 1993. https://doi.org/10.1109/IMTC.1993.382656
M. Guessous, L. Zenkouar, A NURBS Based Technique for an Optimized Transmit Opportunity Map Processing in WLAN Networks, Lecture Notes in Computer Science, vol 10372. Springer, Cham, 2017, pp. 143-154.
M. Guessous, L. Zenkouar, Cognitive directional cost-based transmit power control in IEEE 802.11 WLAN, 2017 International Conference on Information Networking (ICOIN), pp. 281–287, Da Nang, January 2018.
M. Guessous, L. Zenkouar, A novel beamforming-based model of coverage and transmission costing in IEEE 802.11 WLAN networks, Adv. Sci. Technol. Eng. Syst. J., Volume 2, (Issue 6), September 2017, Pages 28–39.
- There are currently no refbacks.
Please send any question about this web site to email@example.com
Copyright © 2005-2021 Praise Worthy Prize