Performance analysis of adaptive decode-and-forward cooperative diversity networks with best-relay selection

Abstract-Cooperative diversity is a promising technique for use in wireless networks because it can provide diversity gain without the need to install multiple antennas at the source or destination. This paper is concerned with the performance analysis of a dual-hop random access network employed adaptive power technique (APT) relay in cooperative diversity networks. The network considered uses amplify-and-forward relaying, and is the only mean to connect source to its destination. This scheme is compared with such popular schemes as the orthogonal scheme, best relay selection, maximal ratio transmission (MRT) and the optimum combining scheme. A new unified mathematical method is developed, which leads to the derivation of new analytical expressions for the overall spectral-efficiency of the dual-hop random access network over Rayleigh fading channels. Numerical results show that the APT can benefit from an increase in the number of relays and reduction of the noise power at the relay and destination. The results also show that the performance of the APT is comparable to the other cooperative schemes, except the MRT. Furthermore, the new mathematical results obtained for APT have been confirmed by Monte Carlo simulation.

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“…Because the relay used is the one that achieves the highest end-to-end SNR [13], the SNR at the destination node can be written as…”

Section: Best Relay Selectionmentioning

confidence: 99%

Performance Analysis of Adaptive Power Technique for Cooperative Diversity Communications

Alfitouri

Hamdi

2017

2017 IEEE Wireless Communications and Networking Conference (WCNC)

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“…Transforming the Bessel function in (4) Although (6) contains an infinite sum, this sum converges quickly. Table 1 shows the number of summed elements in (6), denoted with N, which are required to achieve convergence to the 6th significant digit.…”

Section: System and Channel Modelmentioning

confidence: 99%

“…In the past decade, extensive literature on the topic of cooperative communications can be found [1][2][3][4][5][6][7][8][9][10][11][12][13]. Laneman et al gave the mathematical framework for energy-efficient multiple-access cooperative strategies in [1].…”

Section: Introductionmentioning

confidence: 99%

“…Besides the repetition protocols, Ikki and Ahmed have investigated best-relay and incremental-best-relay selection schemes, respectively, in [6] and [7]. In [6], instead of using all nodes in the network as relays, only the "best" one is used for forwarding data, i.e., the relay with the highest uplink signal-to-noise ratio (SNR) to the destination.…”

Section: Introductionmentioning

confidence: 99%

“…In [6], instead of using all nodes in the network as relays, only the "best" one is used for forwarding data, i.e., the relay with the highest uplink signal-to-noise ratio (SNR) to the destination. In [7], this relay is used only if the destination provides a negative acknowledgement via feedback messages.…”

Section: Introductionmentioning

confidence: 99%

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Outage Analysis of Low-Latency Cooperative Wireless Networks With Threshold-Based Protocol Over Composite Fading

Zdravković

2017

FU Aut Cont Rob

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Abstract. This paper studies a low-latency decode-and-forward cooperative wireless network subject to composite fading. Assuming temporally correlated channel between cooperating nodes and maximal ratio combining at the destination, outage probability (OP) performance is investigated and novel OP expressions are derived when nodes apply a threshold-based protocol for internode communication. The effects of network dimension, multipath fading and shadowing severity parameters, correlation coefficients and average uplink and internode signal-to-noise ratios on OP are discussed.

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References

2018

Space Modulation Techniques

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Performance analysis of adaptive decode-and-forward cooperative diversity networks with best-relay selection

Cited by 241 publications

References 10 publications

Performance Analysis of Adaptive Power Technique for Cooperative Diversity Communications

Performance Analysis of Adaptive Power Technique for Cooperative Diversity Communications

Outage Analysis of Low-Latency Cooperative Wireless Networks With Threshold-Based Protocol Over Composite Fading

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