On the performance of future full-duplex relay selection networks

Khafagy, Mohammad Galal; Alouini, Mohamed‐Slim; Aı̈ssa, Sonia

doi:10.1109/camad.2015.7390472

Cited by 6 publications

(3 citation statements)

References 17 publications

(25 reference statements)

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“…In this subsection, we present the throughput performance of FD V2V wireless cooperative AF relaying. The throughput of the MMIS and MMISI systems are defined as the total number of packÉTS that are successfully delivered to the receiver with no error for a given period of time in bits/sec/Hz and can be written as [54]…”

Section: ) Throughputmentioning

confidence: 99%

Performance Analysis of Full-Duplex Vehicle Relay-Based Selection in Dense Multi-Lane Highways

et al. 2019

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This paper considers a dual-hop vehicle-to-vehicle (V2V) communication system equipped with full-duplex relays (FDRs) in the millimeter-wave networks. The performance of this network is studied in a dense multi-lane highway considering cooperative best vehicular relay selection strategy. In fact, two different FDR schemes are analyzed for the given network. In the first scheme that is called self-interference (SI) vehicle relaying selection, the FDR models the source-relay and the relay-relay links by one channel state information (CSI) coefficient (i.e., a single channel estimation of the two links), while in the second scheme that is called individual SI vehicle relaying selection, the CSI of the source-relay and the relayrelay links are estimated separately. Moreover, relay-destination link is modeled by one CSI coefficient in both aforementioned schemes. Dissimilar to traditional V2V schemes where either line-of-sight (LOS) or non-line-of-sight (NLOS) propagation is considered, and the effect of the blockage on V2V communications is not taken into account when analyzing the performance, in this paper, we propose a probabilistic model capturing the occurrences of LOS and NLOS propagations, which depend on the movement of the vehicles between the central and adjacent lanes. Thus, the movement of the vehicles between any two adjacent lanes is assumed to take place independently and is deemed to be according to the Poisson distribution. This vehicle movement model considers the blockage between the source and destination links. In this vein, a LOS link is considered available when the center lane is clear of vehicles between the source and destination nodes, and an NLOS link is assumed otherwise. Furthermore, a Nakagami-m fading channel model is considered due to its excellent representation of the V2V communication environment. The LOS/NLOS probabilities combined together with the probability of blockage are used to analyze the system performance. The cumulative density function expression of the signal-to-interference-plus-noise ratio at the relay is derived for both relaying schemes. Moreover, the lower bound expressions of the end-to-end outage probabilities are developed and used to express throughput. Finally, the theoretical results postulated and presented here are verified by the numerical simulation for a variety of parameters. INDEX TERMS Full duplex relaying, V2V communications, relay selection, Nakagami−m fading channel, outage probability, throughput, blockage probability.

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Section: ) Throughputmentioning

confidence: 99%

Performance Analysis of Full-Duplex Vehicle Relay-Based Selection in Dense Multi-Lane Highways

et al. 2019

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“…In [18], the authors have studied DF FDRS under Rayleigh fading while jointly taking into account the effects of fading RSI and direct links, in an underlay setting where a primary receiver imposes an interference constraint. The authors also analyzed the performance of DF FDRS in [19] under Nakagami-m fading in the absence of spectrum sharing. A similar setting was also briefly discussed in [20] for Nakagami-m fading, where the relay selection is performed based only on the strength of the self-interference channel.…”

Section: A Related Workmentioning

confidence: 99%

“…While this work was in progress, preliminary results were accepted for presentation in IEEE ICC Wkshps'15[18] for the spectrum-sharing setting under Rayleigh fading, and in IEEE CAMAD'15[19] for the non-spectrumsharing setting under Nakagami-m fading. The currently presented work reports the full results for the spectrum-sharing setting under Nakagami-m fading which subsumes the results in[18] and[19] as special cases. Also presented is the diversity analysis of the FDRS protocols, as well as the relative performance to the half-duplex relay selection (HDRS) protocols.…”

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Full-Duplex Relay Selection in Cognitive Underlay Networks

Khafagy

Alouini

Aı̈ssa

2018

IEEE Trans. Commun.

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In this work, we analyze the performance of fullduplex relay selection (FDRS) in spectrum-sharing networks. Contrary to half-duplex relaying, full-duplex relaying (FDR) enables simultaneous listening/forwarding at the secondary relay(s), thereby allowing for a higher spectral efficiency. However, since the source and relay simultaneously transmit in FDR, their superimposed signal at the primary receiver should now satisfy the existing interference constraint, which can considerably limit the secondary network throughput. In this regard, relay selection can offer an adequate solution to boost the secondary throughput while satisfying the imposed interference limit. We first analyze the performance of opportunistic FDRS with residual selfinterference (RSI) by deriving the exact cumulative distribution function of its end-to-end signal-to-interference-plus-noise ratio under Nakagami-m fading. We also evaluate the offered diversity gain of relay selection for different full-duplex cooperation schemes in the presence/absence of a direct source-destination link. When the adopted RSI link gain model is sublinear in the relay power, which agrees with recent research findings, we show that remarkable diversity gain can be recovered even in the presence of an interfering direct link. Second, we evaluate the end-to-end performance of FDRS with interference constraints due to the presence of a primary receiver. Finally, the presented exact theoretical findings are verified by numerical simulations.

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Loop-Interference Based Full-Duplex Relay Selection

Özduran

2022

Wireless Pers Commun

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On the performance of future full-duplex relay selection networks

Cited by 6 publications

References 17 publications

Performance Analysis of Full-Duplex Vehicle Relay-Based Selection in Dense Multi-Lane Highways

Performance Analysis of Full-Duplex Vehicle Relay-Based Selection in Dense Multi-Lane Highways

Full-Duplex Relay Selection in Cognitive Underlay Networks

Loop-Interference Based Full-Duplex Relay Selection

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