Full duplex radios

BharadiaDinesh,; McMilinEmily,; KattiSachin,

doi:10.1145/2534169.2486033

Cited by 697 publications

(516 citation statements)

References 9 publications

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“…Physical isolation is used to maximize the attenuation of SI in antenna separation, and here the antenna cancellation is assumed to be 25dB. As to analog cancellation, it's just assumed that the amount of SI cancellation is 30 dB according to the typical cancellation scheme in [7] since the emphasis of this paper is placed on the cancellation of the effects introduced by RF impairments in digital domain. In practical systems, it can't be negligible that each component of the transceiver is nonideal, so we must take the impairments of these components into account.…”

Section: System Model and Rf Impairmentsmentioning

confidence: 99%

“…We use Taylor series expansion to approximate the non-linear function, which is a standard way to model non-linear functions [7]. Generally, the output of the nonlinear PA block can be written as…”

Section: Pa Non-linearitymentioning

confidence: 99%

“…Here, the values of signal at further/before times than n are used to estimate the value of signal at time n [7]. For example, X is the Toeplitz matrix of ( )…”

Section: From (16) ( )mentioning

confidence: 99%

See 2 more Smart Citations

Joint Digital Self-interference Cancellation in Full-duplex Radios under IQ Imbalance and Transmitter Non-linearity

et al. 2018

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Abstract. RF imperfections can significantly degrade the performance of full-duplex wireless communication system by introducing non-idealities and random effects, which make it difficult to cancel the self-interference completely. In this paper, we first address the adverse benefits of both the transmitter non-linearity and the IQ imbalance. Then on the basis of these, a joint digital self-interference cancellation scheme is proposed, in which not only the effect of IQ imbalance and power amplifier non-linearity individually, but also the comprehensive function of them are taken into account. Furthermore, the simulation is implemented in the MATLAB platform using standard WiFi 802.11ac PHYs. The results show that the proposed canceller can eliminate more compared with other cancellation schemes, and the overall self-interference attenuation can attain 108dB, which makes the residual self-interference closer to the noise floor.

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Section: System Model and Rf Impairmentsmentioning

confidence: 99%

Section: Pa Non-linearitymentioning

confidence: 99%

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Joint Digital Self-interference Cancellation in Full-duplex Radios under IQ Imbalance and Transmitter Non-linearity

et al. 2018

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“…Meanwhile, the BS is assumed to be imperfect fullduplex that exists residual self-interference. We regard the residual self-interference and INI as increasing the noise power [3], the INI of all nodes is the same, and let BS σ and INI σ be the residual self-interference of the BS and inter-node interference (INI), respectively. …”

Section: System Model and Problem Formulationmentioning

confidence: 99%

“…Fortunately, full-duplex communication technologies provide an effective way to improve the spectrum efficiency via enabling a full-duplex node to transmit and receive simultaneously in the same frequency band [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

A Joint Subcarrier Assignment and Power Allocation with Statistical Delay QoS Provisioning in Full-Duplex OFDMA Systems

et al. 2018

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Abstract. In this paper, we explore a joint subcarrier assignment and power allocation with statistical delay QoS guarantees for full-duplex OFDMA systems. Effective capacity theory which evaluates wireless channel capacity from a novel view of link layer provides a theory basis for modeling the system capacity under the conditions of delay QoS constrains. After modeling the aggregate effective capacity of the system, we formulate joint subcarrier assignment and power allocation problem as a mixed integer programming problem, whose target is to maximize the aggregate effective capacity. To solve this integer programming problem, we allocate initial power on each subcarrier and decompose it into two subproblems, which are subcarrier allocation problem and power allocation problem respectively. Further, we propose an alternative algorithm to achieve joint subcarrier assignment and power allocation, which can meet the "subcarrier continuity" constraint of uplink resource allocation. Simulations have shown that the performance of our proposed scheme is favorite. Additionally, we investigate the effect of the residual selfinterference, inter-node interference (INI) and statistical delay QoS exponent on the performance of systems.

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Wireless‐Powered Cooperative Relay Networks

Maso

Zhong

Zhou

et al. 2017

Wiley Encyclopedia of Electrical and Electronics Engineering

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A cooperative communication network consisting of a source, a destination, and one or multiple relays serves as a primary building block useful to implement practical wireless systems. On the other hand, limited battery life of mobile terminals adversely affects the performance of wireless communication systems. As a contemporary development, significant advances made in wireless power transfer (WPT) and energy harvesting techniques offer effective solutions to replenish energy and prolong the network operation. In this context, envisioning the combination of WPT and relay nodes seems to open up the promising prospect of building a network with larger throughput, wider coverage, and quasiperpetual operation. In this article, we present an overview of the contemporary results on system analysis, optimization, and hardware design aspects of wireless‐powered cooperative relay networks. Further, we highlight key research challenges that requires the attention of research community and system designers so that implementation of such networks becomes a reality in the near future.

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Full duplex radios

Cited by 697 publications

References 9 publications

Joint Digital Self-interference Cancellation in Full-duplex Radios under IQ Imbalance and Transmitter Non-linearity

Joint Digital Self-interference Cancellation in Full-duplex Radios under IQ Imbalance and Transmitter Non-linearity

A Joint Subcarrier Assignment and Power Allocation with Statistical Delay QoS Provisioning in Full-Duplex OFDMA Systems

Wireless‐Powered Cooperative Relay Networks

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