FDOE: Exploit Concurrent Communication Opportunities in Full-Duplex Wireless Mesh Networks

FDOE: Exploit Concurrent Communication Opportunities in Full-Duplex Wireless Mesh Networks
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FDOE:利用全双工无线网状网络中的并发通信机会

DOI:
10.1109/tmc.2022.3144128
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发表时间:
2023-07
期刊:
IEEE Transactions on Mobile Computing 1
影响因子:
--
通讯作者:
Liu Jinnan
Liu Jinnan
中科院分区:
其他
文献类型:
--
作者:
Yu Mengxin;Tang Aimin;Wang Xudong;Liu Jinnan

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近年来,单频信道中的全双工通信已成为一项实用技术。然而,现有的全双工媒体访问控制(MAC)协议很难充分利用全双工传输机会,因为它们不能够在正在进行的半双工链路上再添加一条半双工链路以形成全双工链路。此外,多跳无线网络中暴露节点的问题限制了全双工链路的灵活建立。这种限制浪费了全双工传输机会,从而降低了网络性能。在本文中,开发了一种称为全双工机会利用(FDOE)的高效全双工链路建立协议,以利用无线网状网络中的全双工传输机会。 FDOE 利用无速率编码和伪噪声 (PN) 序列在全双工传输机会可用时建立全双工链路。这种独特的功能可以显着提高网络性能。 FDOE 通过理论分析和广泛的模拟进行评估。性能结果表明,FDOE 在无线网状网络中有效地利用了全双工传输机会,因此显着优于现有的 MAC 协议。
In recent years, full-duplex communications in a single frequency channel have become a practical technology. However, existing full-duplex medium access control (MAC) protocols can hardly take full advantages of full-duplex transmission opportunities, because they are not capable of adding one more half-duplex link on an on-going half-duplex link to form a full-duplex link. Besides, the exposed-node issue in multi-hop wireless networks limits flexible establishment of full-duplex links. Such limitations waste full-duplex transmission opportunities, and thus degrade network performance. In this paper, an efficient full-duplex link establishment protocol called full-duplex opportunity exploitation (FDOE) is developed to exploit full-duplex transmission opportunities in a wireless mesh network. FDOE leverages rateless coding and pseudo-noise (PN) sequences to establish a full-duplex link whenever a full-duplex transmission opportunity is available. Such a distinct feature leads to significant improvement of network performance. FDOE is evaluated through theoretical analysis and extensive simulations. Performance results show that FDOE exploits full-duplex transmission opportunities efficiently in wireless mesh networks, and thus significantly outperforms existing MAC protocols.
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