Performance analysis of cooperative communications with opportunistic relaying

Lateef, Hafiz Yasar; McLernon, Des; Ghogho, Mounir

doi:10.1109/spawc.2010.5670888

Cited by 8 publications

(7 citation statements)

References 16 publications

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“…This assumption is valid since a feedback channel could be used to send pilot signals before the transmission to acquire knowledge about the channel properties [41]. In this study, we employ the normalized distance model [42][43][44] to take into account the impact of pathloss which implies that E( h ij…”

Section: System Modelmentioning

confidence: 99%

Ergodic Capacity Analysis of Full Duplex Relaying in the Presence of Co-Channel Interference in V2V Communications

Eshteiwi

Kaddoum

Alam

2020

Sensors

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We analyze the ergodic capacity of a dual-hop full duplex amplify-and-forward (AF) vehicle-to-vehicle (V2V) cooperative relaying system over Nakagami-m fading channels. In this context, the impacts of self-interference (SI) at the relay and co-channel interference (CCI) at the destination are taken into account in this analysis. Precisely, based on the analysis of the moment generating function (MGF) of the signal-to-interference-plus-noise ratio (SINR), new exact and lower bound expressions for the ergodic capacity are derived. The ergodic capacity upper bound is also derived based on the asymptotic outage probability of the approximated SINR. Monte-Carlo simulation results are presented to corroborate the derived analytical results. Our results show the significant impact of the considered interferences on the system performance. It is shown that the ergodic capacity is degraded when the average SI at the relay and/or the average CCI at the destination is increased. This highlights the importance of taking these phenomena into account in the performance evaluation in order to assess the practical limit of full duplex relaying (FDR) cooperative wireless communications. Interestingly, it is also observed that FDR with SI and CCI still shows a higher ergodic capacity than the interference-free half duplex relaying, especially at medium to high signal-to-noise ratios (SNRs).

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Section: System Modelmentioning

confidence: 99%

Ergodic Capacity Analysis of Full Duplex Relaying in the Presence of Co-Channel Interference in V2V Communications

Eshteiwi

Kaddoum

Alam

2020

Sensors

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“…The average symbol error rate (ASER) and the ergodic capacity of conventional OR networks operating over Nakagami-m fading radio channels have been presented in [13]. Recently, the authors in [9] presented the ASER, outage analysis and the average channel capacity of OHIR networks operating over Rayleigh radio channels.…”

Section: Iet Communicationsmentioning

confidence: 99%

“…While these contributions are significant in their own right, their description in the literature has some limitations, which are: † the conventional OR network considered in [13,15,16] does not cover the case of a spectrally efficient OHIR network; † the analysis in [13,16] does not consider the diversity order of OR networks and the impact of system parameters on the error performance; † the performance analysis of OHIR networks in [9,10] is restricted to Rayleigh radio channels and does not cover the more realistic composite multipath fading channels, together with shadowing scenarios such as generalised-K and Nakagami-m radio channels, while the performance analysis in [9,10] does not provide information relating to the diversity and coding gains; and † the outage probability and the ASER expressions in [10,13,16] result in multi-level summations and the application of numerical techniques to solve the equations, which increase the computational complexity. The analysis in [14] considers an AF relaying scheme over cascaded generalised-K fading channels, but does not apply to schemes with opportunistic relay selection.…”

Section: Iet Communicationsmentioning

confidence: 99%

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Performance analysis of opportunistic relaying and opportunistic hybrid incremental relaying over fading channels

2015

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In this study, the authors develop and present a comprehensive analysis of two opportunistic cooperative relaying schemes for long term evolution (LTE)-advanced networks operating over generalised-K and Nakagami-m fading channels. They present and compare the performance of opportunistic relaying (OR) and opportunistic hybrid automatic repeat request incremental relaying (OHIR). They analyse performance in terms of the average symbol error rate for both conventional OR and OHIR LTE-advanced networks with the radio channel modelled as composite generalised-K fading (encompassing both fading and shadowing) and Nakagami-m fading channels. They also analyse the outage probability for OR operating over these channels. Both the theoretical analysis and simulations confirm that for conventional OR LTE-advanced networks operating over composite generalised-K fading channels, a diversity order of k(N + 1) is achieved when shadowing is more severe than fading, and a diversity order of m(N + 1) is achieved when fading is more severe than shadowing (where k and m represent the generalised-K distribution shape parameters and N represents the number of candidate relays for the OR selection). The simulation results confirm the accuracy of the analytical expressions developed in this study. It is evident from the theoretical analysis and simulations that, for a similar quality of service as that for OR, OHIR not only reduces the amount of required radio resources but also maintains the full diversity order.

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“…Also, [38] analyzed the performance of link adaptive incremental opportunistic relaying over i.n.d Rayleigh fading channels. However [39] studied the performance analysis of cooperative communication with only ORS-SDC scheme. Careful study of the adaptive ORS schemes [32][33][34][35][36][37][38][39] indicates that, the analyses of both the ergodic capacity and the practically achievable spectral efficiency have been obtained using the probability density function method, which can be very tedious and may not always yield compact solutions.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of the Link-Adaptive Cooperative Amplify-and-Forward Relay Networks with Opportunistic Relaying Strategy

Modi¹,

Olabiyi²,

Annamalai³

2016

IJCNC

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This paper analyzes the performance of cooperative amplify-and-forward (CAF) relay networks that employ adaptive M-ary quadrature amplitude modulation (M-QAM)/M-ary phase shift keying (M-PSK) digital modulation techniques in Nakagami-m fading channel. In particular, we present and compared the analysis of CAF relay networks with different cooperative diversity and opportunistic routing strategies such as regular Maximal Ratio Combining (MRC), Selection Diversity Combining (SDC), Opportunistic Relay Selection with Maximal Ratio Combining (ORS-MRC) and Opportunistic Relay Selection with Selection Diversity Combining (ORS-SDC). We advocate a simple yet unified numerical approach based on the marginal moment generating function (MGF) of the total received SNR to compute the average symbol error rate (ASER), mean achievable spectral efficiency, and outage probability performance metrics.

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Performance analysis of cooperative communications with opportunistic relaying

Cited by 8 publications

References 16 publications

Ergodic Capacity Analysis of Full Duplex Relaying in the Presence of Co-Channel Interference in V2V Communications

Ergodic Capacity Analysis of Full Duplex Relaying in the Presence of Co-Channel Interference in V2V Communications

Performance analysis of opportunistic relaying and opportunistic hybrid incremental relaying over fading channels

Performance Analysis of the Link-Adaptive Cooperative Amplify-and-Forward Relay Networks with Opportunistic Relaying Strategy

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