Buffer-Aided Diamond Relay Network With Block Fading and Inter-Relay Interference

Simoni, Renato; Jamali, Vahid; Zlatanov, Nikola; Schober, Robert; Pierucci, Laura; Fantacci, Romano

doi:10.1109/twc.2016.2601333

Cited by 33 publications

(23 citation statements)

References 30 publications

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“…base stations using OFDMA [10] or TDMA [32] [33] so that interferences among MMDs and interferences within OMD communities can be mitigated. Meanwhile, by adopting network coding schemes [34], we can properly handle the inter-relay interference. In the network, we assume that nodes do not frequently move or move slowly, similar to that in [35].…”

Section: System Modelmentioning

confidence: 99%

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BRAINS: Joint Bandwidth-Relay Allocation in Multihoming Cooperative D2D Networks

Chen

Dai

et al. 2018

IEEE Trans. Veh. Technol.

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As an emerging technique, cooperative device to device (CD2D) communication has been considered to be a solution to capacity shortage problem. Combining multi-homing and CD2D techniques together can potentially improve network performance. We propose a novel multi-homing CD2D (MH-CD2D) network, in which multiple homing mobile devices (MMDs) act as relays for the cooperative communications of ordinary mobile devices (OMDs). We formulate such joint bandwidth-relay allocation problem as a two-stage game, in order to deal with two challenges: 1) how to design incentive mechanisms motivating MMDs to lease spare bandwidths to OMDs; 2) how to help OMDs to choose appropriate MMD relays. In the first stage, we use a non-cooperative game to model the competition between MMDs in terms of shared bandwidth and price. In the second stage, we model the behavior of OMDs selecting MMDs by an evolutionary game.We prove that there exists Nash equilibrium in the game and propose a distributed incentive scheme named IMES to solve the joint bandwidth-relay allocation problem. Extensive simulation results show that the equilibrium can be achieved and the best response price of one MMD increases with the other's best price in the Stackelberg game. The utility of MMDs increases with the number of OMDs in each OMD group at the evolutionary equilibrium. The proposed algorithms are able to reduce average service delay by more than 25% in comparison to the randomized scheme which is frequently used in the most existing works. On average, IMES outperforms existing scheme by about 20.37% in terms of utility of MMDs.

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Section: System Modelmentioning

confidence: 99%

“…The self-mapping function is a contraction if and only if λ < 1. According to (34), we have ∂B i ∂pr j < 1 and thus λ < 1 is established, which means the self-mapping function is a contraction. Therefore, the uniqueness of Nash equilibrium for MMDs is proved.…”

Section: ) Evolution Dynamics Of Omdsmentioning

confidence: 99%

BRAINS: Joint Bandwidth-Relay Allocation in Multihoming Cooperative D2D Networks

Chen

Dai

et al. 2018

IEEE Trans. Veh. Technol.

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“…Successive relay techniques [9] are analyzed to improve the spectral efficiency of HD relays, in which a pair of relays is selected, and while one relay receives data from the source, the other transmits the previously received data to the destination. The use of a buffer at the relay nodes, "buffer-aided relaying methods", as in [10][11][12][13][14][15], increases the spectral efficiency with respect to HD relaying without a buffer. This approach allows for selecting the best HD buffer-aided relay among the various relay-destination links (opportunistic relaying schemes), to transmit the data if the channel conditions are good or buffer it otherwise, as in max-max relay selection by Ikhlef et al [16] or the max-link relay selection scheme by Krikidis et al [17].…”

Section: Literature Reviewmentioning

confidence: 99%

Social-Aware Relay Selection for Cooperative Multicast Device-to-Device Communications

2017

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Abstract:The increasing use of social networks such as Facebook, Twitter, and Instagram to share photos, video streaming, and music among friends has generated a huge increase in the amount of data traffic over wireless networks. This social behavior has triggered new communication paradigms such as device-to-device (D2D) and relaying communication schemes, which are both considered as strong drivers for the next fifth-generation (5G) cellular systems. Recently, the social-aware layer and its relationship to and influence on the physical communications layer have gained great attention as emerging focus points. We focus here on the case of relaying communications to pursue the multicast data dissemination to a group of users forming a social community through a relay node, according to the extension of the D2D mode to the case of device-to-many devices. Moreover, in our case, the source selects the device to act as the relay among different users of the multicast group by taking into account both the propagation link conditions and the relay social-trust level with the constraint of minimizing the end-to-end content delivery delay. An optimization procedure is also proposed in order to achieve the best performance. Finally, numerical results are provided to highlight the advantages of considering the impact of social level on the end-to-end delivery delay in the integrated social-physical network in comparison with the classical relay-assisted multicast communications for which the relay social-trust level is not considered.

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“…The proposed low-latency for the successive opportunistic relaying (LoLA4SOR) algorithm considered the buffer length in both {S→R} and {R→D} links and, if SuR failed, delay-aware (DA) HD relaying was performed, exhibiting reduced delay and robustness against outages. Furthermore, optimal scheduling towards delay-awareness and IRI mitigation based on either dirty paper coding or SIC for topologies with two relays, was examined in [19]. More recently, apart from data buffers, energy buffers storing the amount of energy that is harvested from wireless transmissions have been incorporated in BA SuR networks with single [20] or multiple relays [21], enabling network lifetime prolongation.…”

Section: Introductionmentioning

confidence: 99%

Full-Duplex NOMA Transmission with Single-Antenna Buffer-Aided Relays

et al. 2019

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The efficient deployment of fifth generation and beyond networks relies upon the seamless combination of recently introduced transmission techniques. Furthermore, as multiple network nodes exist in dense wireless topologies, low-complexity implementation should be promoted. In this work, several wireless communication techniques are considered for improving the sum-rate performance of cooperative relaying non-orthogonal multiple access (NOMA) networks. For this purpose, an opportunistic relay selection algorithm is developed, employing single-antenna relays to achieve full-duplex operation by adopting the successive relaying technique. In addition, as relays are equipped with buffers, flexible half-duplex transmission can be performed when packets reside in the buffers. The proposed buffer-aided and successive single-antenna (BASSA-NOMA) algorithm is presented in detail and its operation and practical implementation aspects are thoroughly analyzed. Comparisons with other relevant algorithms illustrate significant performance gains when BASSA-NOMA is employed without incurring high implementation complexity.

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Buffer-Aided Diamond Relay Network With Block Fading and Inter-Relay Interference

Cited by 33 publications

References 30 publications

BRAINS: Joint Bandwidth-Relay Allocation in Multihoming Cooperative D2D Networks

BRAINS: Joint Bandwidth-Relay Allocation in Multihoming Cooperative D2D Networks

Social-Aware Relay Selection for Cooperative Multicast Device-to-Device Communications

Full-Duplex NOMA Transmission with Single-Antenna Buffer-Aided Relays

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