Space-Time Network Coding With Multiple AF Relays Over Nakagami- $m$ Fading Channels

Xiong, Ke; Fan, Pingyi; Yang, Hong-Chuan; Zhou, Xianwei

doi:10.1109/tvt.2016.2627338

Cited by 11 publications

(7 citation statements)

References 33 publications

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“…Although lots of important results have been presented in the above existing works, there still some fundamental issues to be studied for multi-relay EH systems [22,23]. For example, the works of [11] and [12] focused on the research of outage probability with harvesting energy relay-aided cooperative networks on the Rayleigh channel, but did not explore it over the Nakagami-m fading channnel.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of energy-harvesting-aware multi-relay networks in Nakagami-m fading

Huang

2018

J Wireless Com Network

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This paper investigates the outage performance of an energy-harvesting(EH) relay-aided cooperative network, where the source node transmits information to its destination node with the help of multiple energy-harvesting cooperative nodes. For such a system, we derive an explicit closed-form expression of outage probability over Nakagami-m fading channels, where the on-off EH model is considered. We simulate the explicit closed-form expression of outage probability with different parameters compared with the related Monte Carlo method. It is shown that the simulation results match well with the numerical ones, which demonstrates the correctness of our theoretical analysis. It indicates that to evaluate the system outage performance, our theoretical results can be applied without running the complex Monte Carlo simulation. Via simulations, it is observed that the system outage performance will be improved when natural source EH relays are employed. Besides, more relays, better system performance.

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Section: Introductionmentioning

confidence: 99%

Performance analysis of energy-harvesting-aware multi-relay networks in Nakagami-m fading

Huang

2018

J Wireless Com Network

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“…Very recently, simultaneous wireless information and power transfer (SWIPT) has been an exciting new way *Correspondence: rfli@vip.sina.cn 1 College of Computer Science and Electronic Engineering and the Key Laboratory for Embedded and Network Computing, Hunan University, 410082 Changsha, People's Republic of China Full list of author information is available at the end of the article to provide stale energy to wireless communication where the receiver is able to harvest energy and decode information from the received signals [5][6][7][8][9][10][11]. In [5], the authors described the basic idea about the wireless information and power transfer from information theoretical perspective, and in [6], the authors proposed a general receiver architecture with separated information decoding and energy harvesting receiver for SWIPT for practical applications.…”

Section: Introductionmentioning

confidence: 99%

Outage probability of power splitting SWIPT two-way relay networks in Nakagami-m fading

Huang

2018

J Wireless Com Network

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This paper investigates the outage probability of an energy harvesting (EH) relay-aided cooperative network, where a source node transmits information to its destination node with the help of an energy harvesting cooperative node. For such a system, we derive an explicit closed-form expression of outage probability over Nakagami-m fading channels for both amplify-and-forward (AF) and decode-and-forward (DF) relay protocols, and we verify the explicit closed-form expressions of outage probability with the Monte Carlo method. It is shown that the simulation results match well with the numerical ones. From the numerical analysis and simulation results, it can be observed that the system parameters have great impact on both AF and DF relay systems. For the DF system, with the increment of the power splitting ratio, the system outage probability decreases, while for the AF system, with the increment of the power splitting ratio, it first increases and then decreases. Besides, for both DF and AF systems, when the relay is placed relatively closer to the source, better outage performance will be achieved.

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“…Therefore, powerful CRCs are required to satisfy this condition. Zhang et al have considered space‐time network coding with multiple AF relays over Nakagami‐m fading channels. Furthermore, in the work of Zhang and Ge, joint antenna‐and‐relay selection in MIMO DF relaying over Nakagami‐m fading channels has been investigated.…”

Section: Introductionmentioning

confidence: 99%

New beamforming and distributed space‐time coding with selection relaying over Nakagami‐m fading channels

Gilan

Olfat

2018

Trans Emerging Tel Tech

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In this paper, a decode‐and‐forward (DF) cooperative network under Nakagami‐m fading is considered. A threshold‐based selection relaying scheme is used to choose the relays for cooperation and the selected relays then employ distributed space‐time coding (DSTC) to retransmit their detected symbols to destination. When employing DSTC, due to decoding errors at DF relays, intersymbol interference (ISI) would be inevitable in these networks. A new beamforming (BF) method, named as bisector alignment, is proposed for mitigating ISI between symbols of DSTC scheme caused by erroneous detection of symbols at relay. It is demonstrated that this scheme by using a simple maximal ratio combining is more power efficient compared with other existing methods. A closed‐form expression for end‐to‐end bit error rate (BER) of the system is derived and the asymptotic behavior analysis of the system illustrates that the threshold‐based selection relaying scheme by employing proper thresholds derived in this paper achieves full diversity order (M + 1)m in a network with M relays and Nakagami shape parameter m. Moreover, we can observe an excellent agreement between analytical and simulation results and the proposed BF achieves more than 3‐dB power gain at BER of 10−3. Based on our results, it can be seen that our proposed scheme is robust to imperfect channel estimation and quantizations.

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Space-Time Network Coding With Multiple AF Relays Over Nakagami- $m$ Fading Channels

Cited by 11 publications

References 33 publications

Performance analysis of energy-harvesting-aware multi-relay networks in Nakagami-m fading

Performance analysis of energy-harvesting-aware multi-relay networks in Nakagami-m fading

Outage probability of power splitting SWIPT two-way relay networks in Nakagami-m fading

New beamforming and distributed space‐time coding with selection relaying over Nakagami‐m fading channels

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