Outage probability analysis of an amplify‐and‐forward cooperative communication system with multi‐path channels and max–min relay selection

Eddaghel, Masoud M.; Mannai, Usama N.; Chen, Gaojie J.; Chambers, Jonathon A.

doi:10.1049/iet-com.2012.0463

Cited by 17 publications

(9 citation statements)

References 19 publications

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“…where D = {1, 2, … , K}. Recalling (14), and letting Λ 1 = Λ 2 , the same conclusion can be obtained as in (17). One can observe that the TSRS scheme can achieve the same system performance as the MMRS scheme when Λ 1 = Λ 2 .…”

Section: Comparison Of the Two Relay Selection Schemessupporting

confidence: 62%

“…In the works of Yang et al and Ding et al, a two‐stage relay selection (TSRS) scheme was proposed and analyzed for Rayleigh fading channels. Furthermore, max‐min relay selection (MMRS) scheme was introduced applied in cooperative communication systems or OFDM‐based networks in the works of Eddaghel et al and Hosseini and Adve . The TSRS scheme may be suitable to serve users that have different service priorities while exploiting the same radio resource.…”

Section: Introductionmentioning

confidence: 99%

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On cooperative NOMA relay selection under Nakagami‐m fading and imperfect channel estimation

Zhang

Serpedin

et al. 2018

Trans Emerging Tel Tech

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Nonorthogonal multiple access (NOMA), which is an effective technique to achieve high spectral efficiency, has been emerging as a candidate for the fifth‐generation multiple access. In addition, NOMA reflects a transition on the forms of power allocation comparing with the orthogonal multiple access (OMA). In this paper, two relay selection schemes are considered to evaluate the achieved performance of a NOMA‐based relaying network, ie, the max‐min relay selection (MMRS) and the two‐stage relay selection (TSRS) schemes. Exact expression analyses for the system outage probability using the MMRS and TSRS schemes are derived to evaluate the system performance under Nakagami‐m fading. The existence of the error floor, caused by the estimation error, is confirmed by the detailed analysis of the asymptotic result. By comparing NOMA with OMA, and comparing the MMRS scheme with the TSRS scheme, one can reveal that cooperative NOMA under Nakagami‐m fading and imperfect channel estimation can maintain superior performance gain than OMA.

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Section: Comparison Of the Two Relay Selection Schemessupporting

confidence: 62%

Section: Introductionmentioning

confidence: 99%

On cooperative NOMA relay selection under Nakagami‐m fading and imperfect channel estimation

Zhang

Serpedin

et al. 2018

Trans Emerging Tel Tech

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“…On the basis of (2) and (4) following [5, 13], the received signal at the destination from relay

r_{m}

, i.e. (3), can be written as:

y_{r_{m}, normalD} = \sqrt{\frac{p_{normalS} p_{{normalr}_{m}}}{p_{normalS} g_{S, {normalr}_{m}} + σ_{S, {normalr}_{m}}^{2}}} \frac{h_{r_{m}, normalD}}{d_{r_{m}, normalD}^{- α}} \frac{h_{S, {normalr}_{m}}}{d_{S, {normalr}_{m}}^{- α}} x + {\hat{z}}_{r_{m}, normalD}

and it can be shown that

{\hat{σ}}_{r_{m}, normalD}^{2} = σ_{r_{m}, normalD}^{2} + \frac{p_{r_{m}} g_{r_{m}, normalD} σ_{normalS, r_{m}}^{2}}{p_{S} g_{normalS, r_{m}} + σ_{normalS, r_{m}}^{2}}

where

h_{r_{m}, normalD}

is the c...…”

Section: Cooperative Network Environmentmentioning

confidence: 99%

“…Several studies have investigated the relay selection problem, proposing techniques based on different selection parameters, e.g. signal‐to‐noise ratio (SNR) or the distance between nodes [3, 4], and analysing the outage probability of overall wireless system [5]. Selection parameters depend on the network requirements; for instance, some networks require the high throughput, e.g.…”

Section: Introductionmentioning

confidence: 99%

Relay selection Algorithm for wireless cooperative networks: a learning‐based approach

Jadoon

Kim

2017

IET Communications

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“…Although DF relaying is mathematically tractable, when it comes to practical realizations, some constraints may occur to hinder its implementation, especially in the IoT and MTC networks, where a large number of power-limited and/or complexity-limited nodes exist. Apart from DF cooperative relaying, amplifyand-forward (AF) relay selection has also been proved to be able to harvest diversity gain for generic cooperative systems with even lower complexity 1 [8]- [10]. Therefore, to provide an easy-to-implement and practical approach to enhance the system reliability and harvest selection diversity for relay assisted OFDM-IM systems, we propose the multi-relay assisted OFDM-IM system, in which AF relaying protocol is adopted and multi-carrier relay selection is used to deploy all relays in an efficient manner.…”

Section: Introductionmentioning

confidence: 99%

OFDM With Index Modulation Assisted by Multiple Amplify-and-Forward Relays

Guo¹,

Dang

Zhang

et al. 2019

IEEE Wireless Commun. Lett.

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A multi-relay assisted orthogonal frequency division multiplexing (OFDM) system with index modulation (OFDM-IM) is proposed in this letter, assuming that amplify-and-forward (AF) relaying protocol is adopted at relays. Two commonly used AF protocols are considered: fixed-gain (FG) AF and variable-gain (VG) AF relaying protocols. To utilize relays in an efficient manner, we also employ two multi-carrier relay selection schemes termed bulk and per-subcarrier (PS) relay selection in the proposed system. We analyze the outage performance of the proposed system and derive closed-form expressions of the average outage probabilities (AOPs) for all cases with different AF relaying protocols and multi-carrier relay selection schemes. In addition, we obtain the asymptotic expressions of AOPs in the high signal-to-noise ratio (SNR) region, by which it is proven that the full diversity gain equaling the number of relays is attainable.

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Outage probability analysis of an amplify‐and‐forward cooperative communication system with multi‐path channels and max–min relay selection

Cited by 17 publications

References 19 publications

On cooperative NOMA relay selection under Nakagami‐m fading and imperfect channel estimation

On cooperative NOMA relay selection under Nakagami‐m fading and imperfect channel estimation

Relay selection Algorithm for wireless cooperative networks: a learning‐based approach

OFDM With Index Modulation Assisted by Multiple Amplify-and-Forward Relays

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