Exploiting Negative Feedback Information for One-Bit Feedback Beamforming Algorithm

Song, Shuo; Thompson, John; Chung, Pei-Jung; Grant, Peter

doi:10.1109/twc.2011.121911.110427

Cited by 34 publications

(21 citation statements)

References 9 publications

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“…The algorithm in [1] is further generalized in [2], to allow simultaneous frequency and phase synchronization. Furthermore, it is improved in [3] by optimizing perturbation size in each iteration and in [4] where the authors also utilize negative feedback instead of simply discarding it.…”

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confidence: 99%

Collaborative beamforming techniques for data transmission in wireless sensor networks

Berbakov

Beko

2015

Telfor

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-Collaborative beamforming is a technique for improving energy efficiency of uplink communications in wireless sensor networks. It is done by synchronizing carrier phases of individual sensor nodes precisely enough, so that they jointly form a beampattern with a stable mainlobe. In this paper, we analyze the impact of additive noise in the received signal on the behavior of an iterative phase synchronization scheme. Besides, we analyze the bit error rate performance of such collaborative transmission. In particular, we consider a decentralized antenna array where sensors are allowed to perform distributed carrier synchronization and collaborative data transmission simultaneously. We evaluate the system performance by using numerical simulations and provide a semi-analytical solution for the algorithm convergence characteristics and the overall bit error rate as a function of the algorithm's iteration index.

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confidence: 99%

Collaborative beamforming techniques for data transmission in wireless sensor networks

Berbakov

Beko

2015

Telfor

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“…Then, the receiver feeds back a one-bit information, which means the SINR performance is improved or worsen, to the transmitter. The feedback scheme is similar to the one-bit feedback used widely in the distributed transmit beamforming literature [159]- [161]. This allows the transmitter to implement cognitive optimization strategies to mitigate clutter and non-target scatterers.…”

Section: Application Of Fda In Cognitive Radarmentioning

confidence: 99%

An Overview on Time/Frequency Modulated Array Processing

Wang

Farina³

2017

IEEE J. Sel. Top. Signal Process.

192

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Time and frequency modulated arrays have numerous application areas including radar, navigation and communications. Specifically, a time modulated array can create a beampattern with low sidelobes via connecting and disconnecting the antenna elements from the feed network, while the frequency modulated frequency diverse array produces a range-dependent pattern. In this paper, we aim to introduce these advanced arrays to the signal processing community so that more investigations in terms of theory, methods and applications, can be facilitated. The research progress of time/frequency modulated array studies is reviewed and the most recent advances are discussed. Moreover, potential applications in radar and communications are presented, along with their technical challenges, especially in signal processing aspects.Index Terms-Time modulated array, frequency modulated array, frequency diverse array, array signal processing, phasedarray, range-dependent beamforming, multiple-input multipleoutput (MIMO) radar.

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“…Then, the receiver feedbacks the performance information, which tells the SINR performance is improved or worsen, to the transmitter. The feedback scheme is similar to the one‐bit feedback used widely in distributed wireless transmits beamforming literature [101–104]. This allows the transmitter to implement cognitive optimisation strategies to mitigate clutter and non‐target scatterers, especially for some range‐dependent strong interferences.…”

Section: Potential Applicationsmentioning

confidence: 99%