Energy Dissipation Versus Delay Tradeoffs in a Buffer-Aided Two-Hop Link

Dong, Chen; Li, Li; Zhang, Bo; Yang, Lie‐Liang; Hanzo, Lajos

doi:10.1109/tvt.2015.2504326

Cited by 5 publications

(3 citation statements)

References 30 publications

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“…Our simulation results also show that the PALS algorithm provides a higher performance than the ProNTO benchmark algorithm [20]. As our future work, inspired by [52]- [55], the SVC video streaming service will be considered in the context of wireless mesh networks, where the optimal layer selection and routing problems should be jointly tackled for improving the QoE of the end users.…”

Section: Discussionmentioning

confidence: 84%

Proportional-Fair Multi-User Scalable Layered Wireless Video Streaming Powered by Energy Harvesting

Yang

Xie

Chen

et al. 2020

IEEE Trans. Veh. Technol.

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The problem of adaptive multi-user scalable layered video transmission is considered in energy harvesting (EH) aided wireless communication systems. With the goal of improving the quality of video services while providing fairness amongst the users despite the random nature of both energy harvesting and the channel quality, we formulate our Scalable Video Coding (SVC) design as a Constrained Utility Function Maximization (CUFM) problem. The proportional fairness and playback smoothness of our design is guaranteed by maximizing the log-sum of the users' video qualities, while satisfying the battery fullness constraint and video layer (quality) fluctuation constraint. By invoking the classical Lyapunov drift based optimization technique, we further decompose the CUFM problem into two parallel subproblems, i.e., a dynamic transmission power allocation problem and a dynamic layer selection problem. By solving these two subproblems, we derive a joint power allocation and video layer selection strategy for multi-user SVC video transmission. The theoretical performance bound of the proposed solution is also presented. Numerical simulations are conducted with real H.264 SVC video traces and the experimental results demonstrate the reduced playback interruption rate and layer switching rate compared to a heuristic algorithm ProNTO. The results also illustrate a tradeoff between the system's utility function and the playback smoothness experienced by the users.

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Section: Discussionmentioning

confidence: 84%

Proportional-Fair Multi-User Scalable Layered Wireless Video Streaming Powered by Energy Harvesting

Yang

Xie

Chen

et al. 2020

IEEE Trans. Veh. Technol.

Self Cite

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“…4 compares the theoretical and numerical curves of the proposed scheme without beamforming, where we considered show the secrecy outage probability and the end-to-end delay, respectively. Note that the theoretical curves were calculated from ( 7) and (24), derived in Section III. As shown, the theoretical and numerical curves matched well, and hence the system model of our proposed scheme is validated.…”

Section: A Theoretical Resultsmentioning

confidence: 99%

Physical Layer Security in Buffer-State-Based Max-Ratio Relay Selection Exploiting Broadcasting With Cooperative Beamforming and Jamming

Nakai

Sugiura

2019

IEEE Trans.Inform.Forensic Secur.

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In this paper, we propose a novel secure bufferaided decode-and-forward relay selection that amalgamates the benefits of the buffer-state-based relay selection, the max-ratio criterion, the simultaneous activation of multiple source-to-relay links, and the cooperative beamforming in dual-hop networks. More specifically, the proposed scheme is designed for selecting a single or multiple relay nodes for packet reception or transmission based on the buffer states of relay nodes, while avoiding the detrimental effects of both an empty buffer state and a buffer overflow. Analytical bounds on the secrecy outage probability and the average delay are derived for our proposed scheme, based on a Markov chain process, in order to verify the system model of our proposed scheme. Furthermore, we introduce the concept of cooperative jamming into the proposed scheme, in order to interfere with an eavesdropper's reception, while dispensing with the full channel state information associated with an eavesdropper at a central coordinator. Our simulation results demonstrate that the proposed schemes outperform the existing buffer-based secure relay selection schemes, in terms of both the secrecy outage probability and the average delay, as the explicit benefits of our novel introduced concepts.

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“…The recent concept of buffer-aided cooperative communications [1]- [16] allows us to attain a higher diversity gain than classic relaying schemes, which do not rely on buffers at relay nodes [17]- [20]. More specifically, the use of relay node buffers enables flexible scheduling of packet reception and transmission at relay nodes, enabling more beneficial link selection during each packet interval.…”

Section: Introductionmentioning

confidence: 99%

Reduced-Packet-Delay Generalized Buffer-Aided Relaying Protocol: Simultaneous Activation of Multiple Source-to-Relay Links

Oiwa

Sugiura

2016

IEEE Access

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Motivated by the recent buffer-aided relaying protocol that selects the best available link at each time slot, we herein introduce an additional degree of freedom to the protocol by simultaneously exploiting multiple links between the source node and the multiple buffer-aided relay nodes, which is enabled owing to the broadcast nature of wireless channels. More specifically, the proposed schemes are designed to allow multiple relay nodes to receive a source packet through source-to-relay broadcast channels, resulting in multiple copies of the source packet, which are stored in relay node buffers. As the explicit benefits of its increased design degree of freedom, the proposed protocols attain a significantly lower end-to-end packet delay than the conventional buffer-aided relaying protocols, which is achieved without imposing any substantial penalty on the achievable outage probability. Furthermore, the proposed protocol is capable of reducing the overhead required for monitoring the available links and buffer statuses of the relay nodes. Based on the Markov chain model, we derive the theoretical bounds of the outage probabilities of the proposed protocols.

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Energy Dissipation Versus Delay Tradeoffs in a Buffer-Aided Two-Hop Link

Cited by 5 publications

References 30 publications

Proportional-Fair Multi-User Scalable Layered Wireless Video Streaming Powered by Energy Harvesting

Proportional-Fair Multi-User Scalable Layered Wireless Video Streaming Powered by Energy Harvesting

Physical Layer Security in Buffer-State-Based Max-Ratio Relay Selection Exploiting Broadcasting With Cooperative Beamforming and Jamming

Reduced-Packet-Delay Generalized Buffer-Aided Relaying Protocol: Simultaneous Activation of Multiple Source-to-Relay Links

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