Collaborative beamforming based on directional perturbation using one bit feedback

Yang, Hongjuan; Ding, Ning; Zheng, Zhi; Lin, Shih‐Yen; Zhang, Zhongpei; Li, Guangjun

doi:10.1109/jsee.2016.00058

Cited by 7 publications

(19 citation statements)

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“…In order to improve the convergence rate of the algorithm, other algorithms based on one-bit feedback scheme are proposed [5][6][7][8][9][10]. The basic idea is that if a weight perturbation value makes the RSS of the received signal weaker, then the negative value of the perturbation tends to make RSS stronger.…”

Section: Related Workmentioning

confidence: 99%

“…Therefore, a one-bit feedback algorithm based on directional perturbation is proposed [6]. This algorithm greatly improves the search efficiency of the algorithm.…”

Section: Related Workmentioning

confidence: 99%

“…In directional perturbation algorithm, the directional search is applied by a direction factor on random perturbation. However, the convergence accuracy of algorithm in [6] is lower than the classic one feedback algorithm in [4]. Then it is important to improve the convergence speed while taking into account the accuracy.…”

Section: Related Workmentioning

confidence: 99%

“…However, convergence speed of the one-bit feedback algorithm need to be improved. Then the researchers proposed some algorithms based on one bit feedback scheme to solve this problem [6][7][8][9][10]. The directional perturbation solution is one of effective ways, in which a directional perturbation factor is used to accelerate convergence so that the received signal strength (RSS) can reach a certain threshold value with the fastest speed [6].…”

Section: Introductionmentioning

confidence: 99%

“…This paper proposes an algorithm for collaborative beamforming which is inspired by the directional perturbation strategy and one bit feedback scheme. A random perturbation value and a directional correction factor are used to adjust the phase offset of each transmitter in the proposed algorithm, which is similar to the literature [6]. However, this paper considers three cases to determine the value of the directional factor, then there are three possible values for directional factor.…”

Section: Introductionmentioning

confidence: 99%

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Improved Directional Perturbation Algorithm for Collaborative Beamforming

Guo¹

2017

AJNC

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This paper discusses the collaborative beamforming problem using improved directional perturbation approach based on one bit feedback scheme. There are multiple transmitters and one receiver in our setup, all the transmitters send a common signal synchronously, the receiver return a one bit of feedback to the transmitters. Each transmitter uses only the one bit feedback and local information to adjust its phase in every time slot. An algorithm using directional perturbation approach based on one bit feedback is proposed to improve the convergence accuracy. The convergence properties of phase alignment are investigated by simulation, and the simulation results verify that the convergence accuracy of the proposed algorithm outperforms the original algorithm. Moreover, simulations also show that the proposed algorithm has advantages on scalability.

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Section: Related Workmentioning

confidence: 99%

“…Therefore, a one-bit feedback algorithm based on directional perturbation is proposed [6]. This algorithm greatly improves the search efficiency of the algorithm.…”

Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Improved Directional Perturbation Algorithm for Collaborative Beamforming

Guo¹

2017

AJNC

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Random grouping based resilient beamforming

et al. 2021

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Collaborative Data Transmission in Wireless Sensor Networks

et al. 2020

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Collaborative beamforming (CBF) is a promising technique aimed at improving energy efficiency of communication in wireless sensor networks (WSNs) which has attracted considerable attention in the research community recently. It is based on a fact that beampattern with stable mainlobe can be formed, if multiple sensors synchronize their oscillators and jointly transmit a common message signal. In this paper, we consider application of CBF with one bit of feedback in different communication scenarios and analyze the impact of constraints imposed by simple sensor node hardware, on the resulting signal strength. First, we present a CBF scheme capable of reducing interference levels in the nearby WSN clusters by employing joint feedback from multiple base stations that surround the WSN of interest. Then, we present a collaborative power allocation and sensor selection algorithm, capable of achieving beamforming gains with transmitters that are not able to adjust their oscillators' signal phase. The performance of the algorithms is assessed by means of achieved beamforming gain which is given as a function of algorithm iterations. The presented results, which are based on numerical simulations and mathematical analysis, are compared with the ideal case without constraints and with negligible noise at the Base Station (BS).

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Collaborative beamforming based on directional perturbation using one bit feedback

Cited by 7 publications

References 0 publications

Improved Directional Perturbation Algorithm for Collaborative Beamforming

Improved Directional Perturbation Algorithm for Collaborative Beamforming

Random grouping based resilient beamforming

Collaborative Data Transmission in Wireless Sensor Networks

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