Bidirectional Full-Duplex Systems in a Multispectrum Environment

Kam, Seunglae; Kim, Dongkyu; Lee, Haesoon; Hong, Daesik

doi:10.1109/tvt.2014.2359581

Cited by 12 publications

(2 citation statements)

References 13 publications

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“…It is noticeable that the sum-rate of cell-boundary users in full-duplex is enhanced as M increases, even more than those of sum-rate values in the half-duplex system. This goes against the findings of previous works [20], [30]. This is because user-user interference and SI can be mitigated because the total transmission power of the BS and the transmit power of each user decrease as the number of antennas at the BS increases, [18], [19].…”

Section: Simulation Resultsmentioning

confidence: 60%

On the Feasibility of Full-Duplex Large-Scale MIMO Cellular Systems

Koh

Lim

Chae

et al. 2018

IEEE Trans. Wireless Commun.

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This paper concerns the feasibility of full-duplex large-scale multiple-input-multiple-output (MIMO) cellular systems. We first propose a pilot transmission scheme and assess its performance, specifically the ergodic sum-rate. The proposed scheme -the simultaneous pilot transmission (SPT) -enables to reduce pilot overhead, where the pilot overhead depends on the number of antennas at the base station (BS), since the self-interference channel has to be estimated. We consider two multicell scenarios-cooperative and non-cooperative multicell systems-, and derive the analytic model of the ergodic achievable sumrate for cell-boundary users. The model is derived by applying a simple linear filter, i.e., matched filter or zero-forcing filter, to the BS. In the analytic model, we also consider large-scale fading, pilot contamination, transmitter noise and receiver distortion. Exploiting the derived analytic model, the feasibility of full-duplex large-scale MIMO systems is shown with respect to system parameters.In the end, we confirm that our analytic model matches well the numerical results and the SPT has advantages over other pilot transmission methods. Index TermsFull-duplex, large-scale MIMO, massive MIMO, cloud radio access networks, and channel estimation.

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Section: Simulation Resultsmentioning

confidence: 60%

On the Feasibility of Full-Duplex Large-Scale MIMO Cellular Systems

Koh

Lim

Chae

et al. 2018

IEEE Trans. Wireless Commun.

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“…The bi-directional topology consists of pair FD nodes which transmit and receive signals at the same time and frequency. It has been shown that the bidirectional topology networks have the potential to double the spectrum efficiency over that of HD networks [12], [13]. In FD relay networks, the end-to-end latency can be reduced as a relay node can receive data from a source node and transmit data to a destination node simultaneously within all the same frequency band [11], [14].…”

Section: A Related Literaturementioning

confidence: 99%

Performance Analysis of Multi-Cell Full-Duplex Cellular Networks

Biswas

Aquilina

et al. 2020

IEEE Access

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We analyze the performance of a cellular network, where Poisson point process distributed half-duplex (HD) downlink (DL) and uplink (UL) users are served by multiple full-duplex (FD) base stations (BSs). To address the surge in interference in the network due to the simultaneous operation in time and frequency of the FD BSs, we (a) adopt a self-interference cancellation scheme at each BS, and (b) apply linear interference alignment in each cell to cancel the intra-cell interference. Further, to better capture the distribution of the FD BSs, we model the BSs as a Matérn hard-core point process, in which a minimum distance is imposed between points. The performance of both UL and DL users is analyzed by deriving general expressions and closed-form approximations for the outage probability and throughput. Next, simulations are carried out for both macro and micro cell environments under both FD and HD operations with respect to various network parameters. Our results reveal several fundamental characteristics and the necessary conditions required for the successful deployment of such networks.INDEX TERMS Full-duplex communication, interference alignment, Matérn hard-core point process, stochastic geometry.

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In‐Band Full‐Duplex Transmission

Choi¹,

Kim²,

Hong³

2019

Wiley 5G Ref

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In‐band full‐duplex (IBFD) operation, a node simultaneously transmits and receives data using a single channel, is an approach that offers great potential to improve spectral efficiency. One of the major difficulties in implementing IBFD systems is self‐interference (SI), which is produced when its own transmitted signal affects the received signal. This article first reviews the basic concepts of IBFD transmission and SI cancellation (SIC) schemes. With the aid of recent progress in SIC, it is shown the SI between the transmitter and receiver on a common channel can be reduced to the noise level, which makes data decoding feasible in IBFD transmission. Accordingly, the effects of IBFD transmission on system performance in various networks are discussed. Furthermore, this chapter also provides the research challenges and opportunities associated with the design and analysis of IBFD systems. Finally, we conclude this chapter by addressing the advantages of IBFD transmission when exploited for different purposes such as non‐orthogonal multiple access, cognitive radios, network secrecy, and wireless power transfer.

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Bidirectional Full-Duplex Systems in a Multispectrum Environment

Cited by 12 publications

References 13 publications

On the Feasibility of Full-Duplex Large-Scale MIMO Cellular Systems

On the Feasibility of Full-Duplex Large-Scale MIMO Cellular Systems

Performance Analysis of Multi-Cell Full-Duplex Cellular Networks

In‐Band Full‐Duplex Transmission

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