On the Outage Performance of JT-CoMP-CNOMA Networks With SWIPT

Lei, Ruoxuan; Xu, Dengfeng

doi:10.1109/lcomm.2020.3029776

Cited by 16 publications

(6 citation statements)

References 17 publications

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“…It considers the cell-center users that act as relays for the cell-edge user, and the energy-constrained cell-center users implement information decoding and energy harvesting in the network. The closed-form approximate expression of outage probability and the Monte Carlo simulations are presented to verify the theoretical results [11].…”

Section: A Related Workmentioning

confidence: 85%

“…Ref. [11] studies the outage performance of a joint transmission coordinated multipoint cooperative non-orthogonal multiple access (JT-CoMP-CNOMA) network. It considers the cell-center users that act as relays for the cell-edge user, and the energy-constrained cell-center users implement information decoding and energy harvesting in the network.…”

Section: A Related Workmentioning

confidence: 99%

“…The above optimization problem satisfies KKT condition and the optimal bidirectional link power can be computed by (11) and (12), respectively.…”

Section: The Proposed Bidirectional Link Resource Allocation Strategymentioning

confidence: 99%

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Bidirectional Link Resource Allocation Strategy in GFDM-based Multiuser SWIPT Systems

2022

KSII TIIS

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In order to enhance system energy efficiency, bidirectional link resource allocation strategy in GFDM-based multiuser SWIPT systems is proposed. In the downlink channel, each SWIPT user applies power splitting (PS) receiver structure in information decoding (ID) and non-linear energy harvesting (EH). In the uplink channel, information transmission power is originated from the harvested energy. An optimization problem is constructed to maximize weighted sum ID achievable rates in the downlink and uplink channels via bidirectional link power allocation as well as subcarriers and subsymbols scheduling. To solve this non-convex optimization problem, Lagrange duality method, sub-gradient-based method and greedy algorithm are adopted respectively. Simulation results show that the proposed strategy is superior to the fixed subcarrier scheme regardless of the weighting coefficients. It is superior to the heuristic algorithm in larger weighting coefficients scenario.

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Section: A Related Workmentioning

confidence: 85%

Section: A Related Workmentioning

confidence: 99%

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Bidirectional Link Resource Allocation Strategy in GFDM-based Multiuser SWIPT Systems

2022

KSII TIIS

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“…For example, it is proved that RIS-NOMA outperforms its orthogonal counterpart, RIS-OMA [31][32][33] in terms of spectral efficiency. The achievable rates and outage performances of RIS-CoMP, 34 CoMP-NOMA, 17,35 CoMP-SWIPT-NOMA, 36 and RIS-CoMP-NOMA 29 are also explored in the literature. To the best of our knowledge, the performance of RIS aided CoMP-NOMA network with SWIPT (SWIPT-RIS-CoMP-NOMA) is yet to be analyzed.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable intelligent surface aided coordinated multipoint transmission for the simultaneous wireless information and power transfer non‐orthogonal multiple access network

Joan

Thirunavukkarasu

Thangavelu

2021

Trans Emerging Tel Tech

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We consider a reconfigurable intelligent surface (RIS) aided coordinated multipoint (CoMP) transmission to enhance the achievable rates of the cell edge users (CEUs) in a downlink non‐orthogonal multiple access (NOMA) network enabled with simultaneous wireless information and power transfer (SWIPT). The RIS‐enabled SWIPT‐CoMP‐NOMA network improves the spectral efficiency and counterbalances the rate trade‐off introduced by SWIPT. The distribution model of the effective channel gain plays a vital role in ergodic capacity and outage probability analysis. In this article, we approximate the effective channel gains of the CEUs using the inverse Gaussian (IG) function and validate its accuracy using the well‐known Kolmogorov–Smirnov distance (KSD) test. Using the proposed channel gain model, we derive closed‐form expressions for the ergodic rates and outage probabilities of the CEUs. Using Monte‐Carlo simulations, we confirm the accuracy of the derived analytical expressions and show that the proposed IG function is more accurate than the Gamma function in estimating the outage probability. We also found that the proposed system always offers a higher ergodic rate than the SWIPT‐CoMP‐NOMA system.

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“…In recent years, the combination of NOMA and SWIPT technologies in cooperative networks has received a considerable amount of attention. For example, in [ 12 , 13 , 14 ], different types of NOMA–SWIPT cooperative relay network models are proposed, and the resource allocation optimization methods is studied with the goal of outage performance of the networks. On this basis, other studies also comprehensively consider the impact of the throughput [ 15 , 16 , 17 , 18 , 19 ], diversity gain [ 20 , 21 , 22 ], and user transmission distance [ 23 , 24 ], verifying that the cooperative relay network of NOMA–SWIPT fusion has a good prospect in energy and resource optimization.…”

Section: Introductionmentioning

confidence: 99%

Research on Energy Efficiency of NOMA–SWIPT Cooperative Relay Network Using GS-DinkelBach Algorithm

Zhou

Hou

2021

Sensors

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In order to improve the energy efficiency (EE) performance of cooperative networks, this study combines non-orthogonal multiple access (NOMA) with simultaneous wireless information and power transfer (SWIPT) technologies to construct a cooperative relay network composed of one base station (BS), multiple near users, and one far user. Based on the network characteristics, a time-division resource allocation rule is proposed, and EE formulas regarding direct-link mode and cooperative mode are derived. Considering user selection and decoding performance, to obtain the optimal EE, this study utilizes a DinkelBach iterative algorithm based on the golden section (GS-DinkelBach) to solve the EE optimization problem, which is affected by power transmitted from the BS, achievable rates under three communication links, and quality of service (QoS) constraints of users. The simulation results show that the GS-DinkelBach algorithm can obtain precise EE gains with low computational complexity. Compared with the traditional NOMA–SWIPT direct-link network model and the relay network model, the optimal EE of the established network model could be increased by 0.54 dB and 1.66 dB, respectively.

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On the Outage Performance of JT-CoMP-CNOMA Networks With SWIPT

Cited by 16 publications

References 17 publications

Bidirectional Link Resource Allocation Strategy in GFDM-based Multiuser SWIPT Systems

Bidirectional Link Resource Allocation Strategy in GFDM-based Multiuser SWIPT Systems

Reconfigurable intelligent surface aided coordinated multipoint transmission for the simultaneous wireless information and power transfer non‐orthogonal multiple access network

Research on Energy Efficiency of NOMA–SWIPT Cooperative Relay Network Using GS-DinkelBach Algorithm

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