The Experts below are selected from a list of 127380 Experts worldwide ranked by ideXlab platform
Chan-byoung Chae - One of the best experts on this subject based on the ideXlab platform.
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Compact Full Duplex MIMO Radios in D2D Underlaid Cellular Networks: From System Design to Prototype Results
IEEE Access, 2017Co-Authors: Minkeun Chung, Min Soo Sim, Dong Ku Kim, Chan-byoung ChaeAbstract:This paper considers the implementation and application possibilities of a compact full Duplex multiple-input multiple-output (MIMO) architecture, where direct communication exists between users, e.g., device-to-device (D2D) and cellular link coexisting on the same spectrum. For the architecture of the compact full Duplex radio, we combine an analog self-interference canceler-based dual polarization with high cross-polarization discrimination and long-term evolution (LTE)-based per-subcarrier digital self-interference canceler. While we consider the compactness and power efficiency of an analog solution, we focus on the digital canceler design with robustness to a frequency-selective channel and high compatibility with a conventional LTE system. For an over-the-air wireless experiment of full Duplex testbed with a two-user-pair, we implement a full Duplex MIMO physical layer, supporting 20-MHz bandwidth, on an Field-Programmable Gate Array-based software-defined radio platform. Furthermore, we propose a novel timing synchronization method to construct a more viable full Duplex MIMO link. By having the full Duplex link prototype fully operating in real time, we present the first characterization of the proposed compact full Duplex MIMO performance depending on the transmit power of the full Duplex node. We also show the link quality between nodes. One of the crucial insights of this paper is that the full Duplex operation of a user is capable of acquiring the throughput gain if the user has self-interference capability with guaranteed performance.
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compact full Duplex mimo radios in d2d underlaid cellular networks from system design to prototype results
arXiv: Information Theory, 2016Co-Authors: Minkeun Chung, Min Soo Sim, Dong Ku Kim, Chan-byoung ChaeAbstract:This paper considers the implementation and application possibilities of a compact full Duplex multiple-input multiple-output (MIMO) architecture where direct communication exists between users, e.g., device-to-device (D2D) and cellular link coexisting on the same spectrum. For the architecture of the compact full Duplex radio, we combine an analog self-interference canceler based dual-polarization with high cross-polarization discrimination (XPD) and Long Term Evolution (LTE)-based per-subcarrier digital self-interference canceler. While we consider the compactness and power efficiency of an analog solution, we focus on the digital canceler design with robustness to a frequency-selective channel and high compatibility with a conventional LTE system. For an over-the-air wireless experiment of full Duplex testbed with a two-user-pair, we implement a full Duplex MIMO physical layer (PHY), supporting 20 MHz bandwidth, on an FPGA-based software-defined radio platform. Further, we propose a novel timing synchronization method to construct a more viable full Duplex MIMO link. By having the full Duplex link prototype fully operating in real-time, we present the first characterization of the proposed compact full Duplex MIMO performance depending on the transmit power of the full Duplex node. We also show the link quality between nodes. One of the crucial insights of this work is that the full Duplex operation of a user is capable of acquiring the throughput gain if the user has self-interference capability with guaranteed performance.
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Prototyping real-time full Duplex radios
IEEE Communications Magazine, 2015Co-Authors: Minkeun Chung, Jaeweon Kim, Min Soo Sim, Dong Ku Kim, Chan-byoung ChaeAbstract:In this article, we present a real-time full Duplex radio system for 5G wireless networks. Full Duplex radios are capable of opening new possibilities in contexts of high traffic demand where there are limited radio resources. A critical issue, however, to implementing full Duplex radios, in real wireless environments, is being able to cancel self-interference. To overcome the self-interference challenge, we prototype our design on a software-defined radio (SDR) platform. This design combines a dual-polarization antenna-based analog part with a digital self-interference canceller that operates in real-time. Prototype test results confirm that the proposed full-Duplex system achieves about 1.9 times higher throughput than a half-Duplex system. This article concludes with a discussion of implementationchallenges that remain for researchers seeking the most viable solution for full Duplex communications.
Minkeun Chung - One of the best experts on this subject based on the ideXlab platform.
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Compact Full Duplex MIMO Radios in D2D Underlaid Cellular Networks: From System Design to Prototype Results
IEEE Access, 2017Co-Authors: Minkeun Chung, Min Soo Sim, Dong Ku Kim, Chan-byoung ChaeAbstract:This paper considers the implementation and application possibilities of a compact full Duplex multiple-input multiple-output (MIMO) architecture, where direct communication exists between users, e.g., device-to-device (D2D) and cellular link coexisting on the same spectrum. For the architecture of the compact full Duplex radio, we combine an analog self-interference canceler-based dual polarization with high cross-polarization discrimination and long-term evolution (LTE)-based per-subcarrier digital self-interference canceler. While we consider the compactness and power efficiency of an analog solution, we focus on the digital canceler design with robustness to a frequency-selective channel and high compatibility with a conventional LTE system. For an over-the-air wireless experiment of full Duplex testbed with a two-user-pair, we implement a full Duplex MIMO physical layer, supporting 20-MHz bandwidth, on an Field-Programmable Gate Array-based software-defined radio platform. Furthermore, we propose a novel timing synchronization method to construct a more viable full Duplex MIMO link. By having the full Duplex link prototype fully operating in real time, we present the first characterization of the proposed compact full Duplex MIMO performance depending on the transmit power of the full Duplex node. We also show the link quality between nodes. One of the crucial insights of this paper is that the full Duplex operation of a user is capable of acquiring the throughput gain if the user has self-interference capability with guaranteed performance.
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compact full Duplex mimo radios in d2d underlaid cellular networks from system design to prototype results
arXiv: Information Theory, 2016Co-Authors: Minkeun Chung, Min Soo Sim, Dong Ku Kim, Chan-byoung ChaeAbstract:This paper considers the implementation and application possibilities of a compact full Duplex multiple-input multiple-output (MIMO) architecture where direct communication exists between users, e.g., device-to-device (D2D) and cellular link coexisting on the same spectrum. For the architecture of the compact full Duplex radio, we combine an analog self-interference canceler based dual-polarization with high cross-polarization discrimination (XPD) and Long Term Evolution (LTE)-based per-subcarrier digital self-interference canceler. While we consider the compactness and power efficiency of an analog solution, we focus on the digital canceler design with robustness to a frequency-selective channel and high compatibility with a conventional LTE system. For an over-the-air wireless experiment of full Duplex testbed with a two-user-pair, we implement a full Duplex MIMO physical layer (PHY), supporting 20 MHz bandwidth, on an FPGA-based software-defined radio platform. Further, we propose a novel timing synchronization method to construct a more viable full Duplex MIMO link. By having the full Duplex link prototype fully operating in real-time, we present the first characterization of the proposed compact full Duplex MIMO performance depending on the transmit power of the full Duplex node. We also show the link quality between nodes. One of the crucial insights of this work is that the full Duplex operation of a user is capable of acquiring the throughput gain if the user has self-interference capability with guaranteed performance.
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Prototyping real-time full Duplex radios
IEEE Communications Magazine, 2015Co-Authors: Minkeun Chung, Jaeweon Kim, Min Soo Sim, Dong Ku Kim, Chan-byoung ChaeAbstract:In this article, we present a real-time full Duplex radio system for 5G wireless networks. Full Duplex radios are capable of opening new possibilities in contexts of high traffic demand where there are limited radio resources. A critical issue, however, to implementing full Duplex radios, in real wireless environments, is being able to cancel self-interference. To overcome the self-interference challenge, we prototype our design on a software-defined radio (SDR) platform. This design combines a dual-polarization antenna-based analog part with a digital self-interference canceller that operates in real-time. Prototype test results confirm that the proposed full-Duplex system achieves about 1.9 times higher throughput than a half-Duplex system. This article concludes with a discussion of implementationchallenges that remain for researchers seeking the most viable solution for full Duplex communications.
Min Soo Sim - One of the best experts on this subject based on the ideXlab platform.
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Compact Full Duplex MIMO Radios in D2D Underlaid Cellular Networks: From System Design to Prototype Results
IEEE Access, 2017Co-Authors: Minkeun Chung, Min Soo Sim, Dong Ku Kim, Chan-byoung ChaeAbstract:This paper considers the implementation and application possibilities of a compact full Duplex multiple-input multiple-output (MIMO) architecture, where direct communication exists between users, e.g., device-to-device (D2D) and cellular link coexisting on the same spectrum. For the architecture of the compact full Duplex radio, we combine an analog self-interference canceler-based dual polarization with high cross-polarization discrimination and long-term evolution (LTE)-based per-subcarrier digital self-interference canceler. While we consider the compactness and power efficiency of an analog solution, we focus on the digital canceler design with robustness to a frequency-selective channel and high compatibility with a conventional LTE system. For an over-the-air wireless experiment of full Duplex testbed with a two-user-pair, we implement a full Duplex MIMO physical layer, supporting 20-MHz bandwidth, on an Field-Programmable Gate Array-based software-defined radio platform. Furthermore, we propose a novel timing synchronization method to construct a more viable full Duplex MIMO link. By having the full Duplex link prototype fully operating in real time, we present the first characterization of the proposed compact full Duplex MIMO performance depending on the transmit power of the full Duplex node. We also show the link quality between nodes. One of the crucial insights of this paper is that the full Duplex operation of a user is capable of acquiring the throughput gain if the user has self-interference capability with guaranteed performance.
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compact full Duplex mimo radios in d2d underlaid cellular networks from system design to prototype results
arXiv: Information Theory, 2016Co-Authors: Minkeun Chung, Min Soo Sim, Dong Ku Kim, Chan-byoung ChaeAbstract:This paper considers the implementation and application possibilities of a compact full Duplex multiple-input multiple-output (MIMO) architecture where direct communication exists between users, e.g., device-to-device (D2D) and cellular link coexisting on the same spectrum. For the architecture of the compact full Duplex radio, we combine an analog self-interference canceler based dual-polarization with high cross-polarization discrimination (XPD) and Long Term Evolution (LTE)-based per-subcarrier digital self-interference canceler. While we consider the compactness and power efficiency of an analog solution, we focus on the digital canceler design with robustness to a frequency-selective channel and high compatibility with a conventional LTE system. For an over-the-air wireless experiment of full Duplex testbed with a two-user-pair, we implement a full Duplex MIMO physical layer (PHY), supporting 20 MHz bandwidth, on an FPGA-based software-defined radio platform. Further, we propose a novel timing synchronization method to construct a more viable full Duplex MIMO link. By having the full Duplex link prototype fully operating in real-time, we present the first characterization of the proposed compact full Duplex MIMO performance depending on the transmit power of the full Duplex node. We also show the link quality between nodes. One of the crucial insights of this work is that the full Duplex operation of a user is capable of acquiring the throughput gain if the user has self-interference capability with guaranteed performance.
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Prototyping real-time full Duplex radios
IEEE Communications Magazine, 2015Co-Authors: Minkeun Chung, Jaeweon Kim, Min Soo Sim, Dong Ku Kim, Chan-byoung ChaeAbstract:In this article, we present a real-time full Duplex radio system for 5G wireless networks. Full Duplex radios are capable of opening new possibilities in contexts of high traffic demand where there are limited radio resources. A critical issue, however, to implementing full Duplex radios, in real wireless environments, is being able to cancel self-interference. To overcome the self-interference challenge, we prototype our design on a software-defined radio (SDR) platform. This design combines a dual-polarization antenna-based analog part with a digital self-interference canceller that operates in real-time. Prototype test results confirm that the proposed full-Duplex system achieves about 1.9 times higher throughput than a half-Duplex system. This article concludes with a discussion of implementationchallenges that remain for researchers seeking the most viable solution for full Duplex communications.
Dong Ku Kim - One of the best experts on this subject based on the ideXlab platform.
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Compact Full Duplex MIMO Radios in D2D Underlaid Cellular Networks: From System Design to Prototype Results
IEEE Access, 2017Co-Authors: Minkeun Chung, Min Soo Sim, Dong Ku Kim, Chan-byoung ChaeAbstract:This paper considers the implementation and application possibilities of a compact full Duplex multiple-input multiple-output (MIMO) architecture, where direct communication exists between users, e.g., device-to-device (D2D) and cellular link coexisting on the same spectrum. For the architecture of the compact full Duplex radio, we combine an analog self-interference canceler-based dual polarization with high cross-polarization discrimination and long-term evolution (LTE)-based per-subcarrier digital self-interference canceler. While we consider the compactness and power efficiency of an analog solution, we focus on the digital canceler design with robustness to a frequency-selective channel and high compatibility with a conventional LTE system. For an over-the-air wireless experiment of full Duplex testbed with a two-user-pair, we implement a full Duplex MIMO physical layer, supporting 20-MHz bandwidth, on an Field-Programmable Gate Array-based software-defined radio platform. Furthermore, we propose a novel timing synchronization method to construct a more viable full Duplex MIMO link. By having the full Duplex link prototype fully operating in real time, we present the first characterization of the proposed compact full Duplex MIMO performance depending on the transmit power of the full Duplex node. We also show the link quality between nodes. One of the crucial insights of this paper is that the full Duplex operation of a user is capable of acquiring the throughput gain if the user has self-interference capability with guaranteed performance.
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compact full Duplex mimo radios in d2d underlaid cellular networks from system design to prototype results
arXiv: Information Theory, 2016Co-Authors: Minkeun Chung, Min Soo Sim, Dong Ku Kim, Chan-byoung ChaeAbstract:This paper considers the implementation and application possibilities of a compact full Duplex multiple-input multiple-output (MIMO) architecture where direct communication exists between users, e.g., device-to-device (D2D) and cellular link coexisting on the same spectrum. For the architecture of the compact full Duplex radio, we combine an analog self-interference canceler based dual-polarization with high cross-polarization discrimination (XPD) and Long Term Evolution (LTE)-based per-subcarrier digital self-interference canceler. While we consider the compactness and power efficiency of an analog solution, we focus on the digital canceler design with robustness to a frequency-selective channel and high compatibility with a conventional LTE system. For an over-the-air wireless experiment of full Duplex testbed with a two-user-pair, we implement a full Duplex MIMO physical layer (PHY), supporting 20 MHz bandwidth, on an FPGA-based software-defined radio platform. Further, we propose a novel timing synchronization method to construct a more viable full Duplex MIMO link. By having the full Duplex link prototype fully operating in real-time, we present the first characterization of the proposed compact full Duplex MIMO performance depending on the transmit power of the full Duplex node. We also show the link quality between nodes. One of the crucial insights of this work is that the full Duplex operation of a user is capable of acquiring the throughput gain if the user has self-interference capability with guaranteed performance.
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Prototyping real-time full Duplex radios
IEEE Communications Magazine, 2015Co-Authors: Minkeun Chung, Jaeweon Kim, Min Soo Sim, Dong Ku Kim, Chan-byoung ChaeAbstract:In this article, we present a real-time full Duplex radio system for 5G wireless networks. Full Duplex radios are capable of opening new possibilities in contexts of high traffic demand where there are limited radio resources. A critical issue, however, to implementing full Duplex radios, in real wireless environments, is being able to cancel self-interference. To overcome the self-interference challenge, we prototype our design on a software-defined radio (SDR) platform. This design combines a dual-polarization antenna-based analog part with a digital self-interference canceller that operates in real-time. Prototype test results confirm that the proposed full-Duplex system achieves about 1.9 times higher throughput than a half-Duplex system. This article concludes with a discussion of implementationchallenges that remain for researchers seeking the most viable solution for full Duplex communications.
Shengye Huang - One of the best experts on this subject based on the ideXlab platform.
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full Duplex mac protocol based on adaptive contention window for visible light communication
IEEE\ OSA Journal of Optical Communications and Networking, 2015Co-Authors: Zhong Wang, Yonghe Liu, Yaping Lin, Shengye HuangAbstract:As an alternative technology to radio-frequency-based communication, visible light communication (VLC) has attracted tremendous interest from both academia and industry. For its medium access control (MAC) protocol, most existing design has focused on the half-Duplex mode, which can be inefficient for two-way communications. In this paper, we propose a novel full-Duplex MAC protocol for VLC networks. Different from half-Duplex operation, full-Duplex operation allows concurrent sending and receiving of data frames between the central node and terminal nodes. We show that under certain scenarios, it can achieve almost threefold downlink throughput from the central node to terminal nodes as compared with half-Duplex operation. Unfortunately, owing to asymmetric traffic demand on the uplink and downlink, full-Duplex transmission cannot always be realized. To increase the probability of full-Duplex transmission, we further propose a self-adaptive minimum contention window full-Duplex MAC protocol that can significantly increase the probability of Duplex operation. Our experimental study shows that the proposed MAC protocol can effectively mitigate channel collisions and achieve significantly higher system throughput.
