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  • Tác giả : Thanh, Trung Nguyen; Khaled, Elbassioni; Nguyen, Cong Luong; Tao, Dusit Niyato; Dong, In Kim;  Người hướng dẫn: -;  Đồng tác giả: - (2022)

    In this paper, we consider a distributed joint sensing and communication (DJSC) system in which each radar sensor as a JSC node is equipped with a sensing function and a communication function. Deploying multiple JSC nodes may require a large amount of bandwidth. Therefore, we investigate the bandwidth allocation problem for the DJSC system. In particular, we aim to optimize the bandwidth allocation to the sensing function and the communication function of the JSC nodes. To improve the allocation efficiency while benefiting the spatial diversity advantage of the DJSC systems, the objective is to maximize the sum of sensing performances, i.e., estimation rates, communication performances, i.e., communication data rates, and fairness of all the users. The optimization problem is non-c...

  • Tác giả : Tianxu, Li; Kun, Zhu; Nguyen, Cong Luong; Dusit, Niyato; Qihui, Wu; Yang, Zhang; Bing, Chen;  Người hướng dẫn: -;  Đồng tác giả: - (2022)

    Future Internet involves several emerging technologies such as 5G and beyond 5G networks, vehicular networks, unmanned aerial vehicle (UAV) networks, and Internet of Things (IoTs). Moreover, the future Internet becomes heterogeneous and decentralized with a large number of involved network entities. Each entity may need to make its local decision to improve the network performance under dynamic and uncertain network environments. Standard learning algorithms such as single-agent Reinforcement Learning (RL) or Deep Reinforcement Learning (DRL) have been recently used to enable each network entity as an agent to learn an optimal decision-making policy adaptively through interacting with the unknown environments. However, such an algorithm fails to model the cooperations or competition...

  • Tác giả : Nguyen, Cong Luong;  Người hướng dẫn: Nguyen, Thi Thanh Van; Feng, Shaohan; Nguyen, Huy T.; Niyato, Dusit; Kim, Dong In;  Đồng tác giả: - (2021)

    In this article, we investigate the dynamic network service provider (SP) and service selection in a user-centric network. Here, the network services are different combinations of network resources. In particular, we consider an intelligent reflecting surface (IRS)-assisted wireless network in which mobile users select different network resources, i.e., transmit power and IRS resources, provided by different SPs. To analyze the SP and service selection of the users, we propose to use an evolutionary game. In the game, the users (players) adjust their selections of the SPs and services based on their utilities. We model the SP and service adaptation of the users by the replicator dynamics and analyze the equilibrium of the evolutionary game. Extensive simulations are provided to demo...

  • Tác giả : Nguyen, Thi Thanh Van; Nguyen, Cong Luong; Feng, Shaohan;  Người hướng dẫn: -;  Đồng tác giả: - (2022)

    In this paper, we address dynamic network selection problems of mobile users in an Intelligent Reflecting Surface (IRS)-enabled wireless network. In particular, the users dynamically select different Service Providers (SPs) and network services over time. The network services are composed of adjustable resources of IRS and transmit power. To formulate the SP and network service selection, we adopt an evolutionary game in which the users are able to adapt their network selections depending on the utilities that they achieve. For this, the replicator dynamics is used to model the service selection adaptation of the users. To allow the users to take their past service experiences into account their decisions, we further adopt an enhanced version of the evolutionary game, namely fractio...

  • Tác giả : Trung Thanh, Nguyen; Khaled, Elbassioni; Nguyen, Cong Luong;  Người hướng dẫn: -;  Đồng tác giả: - (2022)

    In this paper, we consider a distributed joint sensing and communication (DJSC) system in which each radar sensor as a JSC node is equipped with a sensing function and a communication function. Deploying multiple JSC nodes may require a large amount of bandwidth. Therefore, we investigate the bandwidth allocation problem for the DJSC system. In particular, we aim to optimize the bandwidth allocation to the sensing function and the communication function of the JSC nodes. To improve the allocation efficiency while benefiting the spatial diversity advantage of the DJSC systems, the objective is to maximize the sum of sensing performances, i.e., estimation rates, communication performances, i.e., communication data rates, and fairness of all the users. The optimization problem is non-c...

  • Tác giả : Tianxu, Li; Kun, Zhu; Nguyen, Cong Luong; Dusit, Niyato;  Người hướng dẫn: -;  Đồng tác giả: - (2022)

    Future Internet involves several emerging technologies such as 5G and beyond 5G networks, vehicular networks, unmanned aerial vehicle (UAV) networks, and Internet of Things (IoTs). Moreover, the future Internet becomes heterogeneous and decentralized with a large number of involved network entities. Each entity may need to make its local decision to improve the network performance under dynamic and uncertain network environments. Standard learning algorithms such as single-agent Reinforcement Learning (RL) or Deep Reinforcement Learning (DRL) have been recently used to enable each network entity as an agent to learn an optimal decision-making policy adaptively through interacting with the unknown environments. However, such an algorithm fails to model the cooperations or competition...