A Simple Adaptive Beamforming Algorithm with interference Suppression

Meena, K.; Kabilan, A. P.

doi:10.7763/ijet.2009.v1.12

Cited by 12 publications

(7 citation statements)

References 5 publications

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“…They described the channelization PHY design, and MAC modifications and beam forming in the standards. [13] Developed an adaptive Beamforming algorithm capable of interference rejection in the Global Navigation Satellite System (GNSS) receivers. This will allow interference suppression using orthogonal projection to create nulls in the array pattern as well as enhancing the quality of signal [14], demonstrated how beam forming based on the MBER criterion can be used for the enhancement in performance gain in wireless communications.…”

Section: Related Workmentioning

confidence: 99%

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Investigation of Beam Forming Effectiveness in Ieee802.11AC Indoor Wireless Links

.Juliet¹,

Stuart²

2013

Computer Science &Amp; Information Technology ( CS &Amp; IT )

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The strong demand for large capacity transmission due to an unprecedented growth in data traffic requires an enhancement in the quality of service in the medium access control. This quality delivery features strongly in the IEEE802.11ac standard. Here, we have performed empirical measurements of an 802.11ac system based on the beam forming technology. In this work, an empirical analysis was conducted to determine the effectiveness of Beamforming Technology as depicts in the quality of service (QoS) enhancement in the newest wireless technology deployed on IEEE802.11ac standard. The experimental outcomes revealed the quality of service (QoS) enhancement in IEEE802.11ac. Although the realized throughput in real application scenario fell below designed specification. Nevertheless there is a considerable data throughput improvement on the counterpart 802.11n. There remain opportunities for further enhancements in beam-forming technology.

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Section: Related Workmentioning

confidence: 99%

“…The figure1b is the setup model for adaptive beamforming. The mathematical algorithms are shown in the following equations [13] The error signal is given by;…”

Section: Adaptive Beamforming Technologymentioning

confidence: 99%

Investigation of Beam Forming Effectiveness in Ieee802.11AC Indoor Wireless Links

.Juliet¹,

Stuart²

2013

Computer Science &Amp; Information Technology ( CS &Amp; IT )

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“…A smart antenna system combines multiple antenna elements with a signal processing capability to optimize its radiation and or reception pattern automatically in response to the signal environment [7]. The rest of the paper is organized as follows.…”

Section: Introductionmentioning

confidence: 99%

Fpga implementation of beamforming algorithm for terrestrial radar application

Anjitha

Sundaram²

2014

2014 International Conference on Communication and Signal Processing

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Beamforming or spatial filtering combines signals from an array of sensors, to achieve directionality. Each signal is weighted and summed to form a single strong signal from a desired direction of arrival, while suppressing interference. Without mechanical structures the antenna can be steered electronically by adjusting gain and phase. This concept can be used in terrestrial radar application scenarios like open cast mining of metallic mineral core. FPGAs offer higher levels of performance; therefore they are especially appropriate for beamforming applications. Here focus, is to implement adaptive beamforming algorithm known Least Mean Square Algorithm in FPGA. Therefore the relation between Mean Square Error and Iterations and different Step Size are found out. Power Analysis of LMS is presented using Xilinx X Power Analyzer.

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“…Similar to our work, [24] gave the overview of the newest technologies promised to deliver multi-gigabits throughput: Ieee802.11ac/ ad, they described the channelization PHY design, and MAC modifications and beamforming in the standards. [25] proposed a joint adaptive beamforming algorithm for interference suppression in GNSS( Global Navigation Satellite System) receivers: first the orthogonal projection is used to suppress strong interference by producing nulling in the array pattern, while the maximum post-correlated C/No constrained is used to process the interference-free signal to further enhance the signal quality. [26] designed an advance interference resilient scheme for asynchronous slow frequency hopping wireless personal area networking and time division multiple access cellular system for interference reduction in wireless system.…”

Section: Related Work Of Wlan Indoor Coveragementioning

confidence: 99%

“…The figure1b is the setup model for adaptive beamforming. The mathematical algorithms are shown in the following equations [25] , Where is the power of the difference between the output and reference signals -step size is power of incoming signal and is the deviation…”

Section: Adaptive Beamforming Technologymentioning

confidence: 99%