Bézier curves-based novel out-of-path beamforming calibration technique in IEEE 802.11 WLAN networks

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.


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