Asynchronous Device Detection for Cognitive Device-to-Device Communications

Li, Bin; Guo, Weisi; Liang, Ying-Chang; An, Chunyan; Zhao, Chenglin

doi:10.1109/twc.2018.2796553

Cited by 11 publications

(7 citation statements)

References 45 publications

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“…The multi ball approximation in (4) can be considered as an expansion of single LOS ball. We decompose the (3) into (4) where…”

Section: Assumptionmentioning

confidence: 99%

“…As the radii D c can arbitrarily be any value, the regions emerge for LOS state with different probability. With Υ divided into four regions, we need to approximate the mean link probabilities of different state in (4). The LOS link is finally computed as p L (r) = min {G/r} 1 − e (− r 2G ) + e (− r 2G ) , where G is correlative to the range and the situation of the enclosed region Υ.…”

Section: Assumptionmentioning

confidence: 99%

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Resource Allocation for Indoor Self-blockage WmWave Device-to-Device Communications

Wang¹,

Yu²,

Zheng³

et al. 2020

Preprint

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Millimeter wave (mmWave) technology can meet the requirements of large amount of data communications among intelligent devices for indoor scenario. With high requirement of throughput, reducing interference in an enclosed region is still a challenge. For indoor scenario, the human bodies are considered as the main blockages besides conventional blockages. In this paper, we present a new system model by exploiting the self-blockage model to capture the effects of human body, while using multi-ball Line of Sight (LOS) link state model to describe the conventional blockage. The combination of the two components provides a more comprehensive and accurate expression of indoor obstruction. We give a closed expression of coverage rate to analyze the system performance. Simulation results show that the proposed model is highly accurate to describe the distribution of blockages for indoor case. Then, we formulate the resource allocation as an optimization problem under this scenario. The target of this optimization is to achieve the maximum throughput by minimizing interference. To reach this goal, an improved Powell Multi Vertex Coloring algorithm (PMVC) is proposed. The throughput raises apparently when we modify this scheme to put more flows in different time-slots evenly. Numerical experiments show that the improved algorithm can achieve higher system throughput than traditional greedy algorithm and Powell Vertex Coloring (PVC) scheme.

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“…The multi ball approximation in (4) can be considered as an expansion of single LOS ball. We decompose the (3) into (4) where…”

Section: Assumptionmentioning

confidence: 99%

Section: Assumptionmentioning

confidence: 99%

Resource Allocation for Indoor Self-blockage WmWave Device-to-Device Communications

Wang¹,

Yu²,

Zheng³

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Denoting π k as the steady state probability of the channel being at state k. With equiprobable partition of the channel gain (this is a reasonable and commonly adopted technique in a FSMC model, cf. [13]- [15]), i.e., π k = 1 K , ∀k ∈ {1, 2, ..., K}, the fading boundaries Θ k can be obtained by solving the following equations:…”

Section: A System Statesmentioning

confidence: 99%

“…Specifically, the channel state transition probability from state h t to h t+1 can be approximated by the ratio of Λ(Θ) divided by the average number of blocks the value of θ t falls in the interval associated with the state h t . Similar to [13]- [17], we assume that the channel state transits between its adjacent state only (the validity of this commonlyused assumption has been verified in [16]). Then, the channel transition probabilities can be approximated as…”

Section: Transition Probabilitiesmentioning

confidence: 99%

Optimal Online Transmission Policy for Energy-Constrained Wireless-Powered Communication Networks

Zhou

et al. 2019

ICC 2019 - 2019 IEEE International Conference on Communications (ICC)

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This work considers the design of online transmission policy in a wireless-powered communication system with a given energy budget. The system design objective is to maximize the long-term throughput of the system exploiting the energy storage capability at the wireless-powered node. We formulate the design problem as a constrained Markov decision process (CMDP) problem and obtain the optimal policy of transmit power and time allocation in each fading block via the Lagrangian approach. To investigate the system performance in different scenarios, numerical simulations are conducted with various system parameters. Our simulation results show that the optimal policy significantly outperforms a myopic policy which only maximizes the throughput in the current fading block. Moreover, the optimal allocation of transmit power and time is shown to be insensitive to the change of modulation and coding schemes, which facilitates its practical implementation.

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“…Bin Li et al proposed an asynchronous device detection for D2D communication [4]. They claimed that coordination from eNB can affect the fallback publicity safety scenarios and the implementation of out-of-coverage applications.…”

Section: A Asynchronous Device Detectionmentioning

confidence: 99%

A Study on Device Discovery for D2D Communication

Austine¹

2019

IJRASET

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The next generation network, the future of wireless communication 5G, offers a wide range of techniques to improve the existing network characteristics. Among them, a dominant technology to improve the spectrum efficiency and throughput of a network is the Device to Device (D2D) communication. This enables the mobile devices in close proximity to communicate directly by reusing the channel allocated to the corresponding cell. It also improves the data rates, reduces latency and increases system capacity. Identifying the potential candidate for D2D communication is the first and most important step in setting up the D2D communication. In this paper a study on the latest mechanisms to implement device discovery for D2D communication in cellular network is done. Different aspects in three different perspective are presented here.

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Asynchronous Device Detection for Cognitive Device-to-Device Communications

Cited by 11 publications

References 45 publications

Resource Allocation for Indoor Self-blockage WmWave Device-to-Device Communications

Resource Allocation for Indoor Self-blockage WmWave Device-to-Device Communications

Optimal Online Transmission Policy for Energy-Constrained Wireless-Powered Communication Networks

A Study on Device Discovery for D2D Communication

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