Buffering Time for Wireless Full-Duplex Systems Under Random Arrival

Full-duplex wireless communication has the potential to double the capacity of wireless networks by reducing the duration ratio of band occupancy of transmissions. However, under practical non-fully buffered traffic, a full-duplex capability cannot always reduce the duration ratio of band occupancy,...

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Main Authors: Makoto Kobayashi, Shunsuke Saruwatari, Takashi Watanabe
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8576501/
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author Makoto Kobayashi
Shunsuke Saruwatari
Takashi Watanabe
author_facet Makoto Kobayashi
Shunsuke Saruwatari
Takashi Watanabe
author_sort Makoto Kobayashi
collection DOAJ
description Full-duplex wireless communication has the potential to double the capacity of wireless networks by reducing the duration ratio of band occupancy of transmissions. However, under practical non-fully buffered traffic, a full-duplex capability cannot always reduce the duration ratio of band occupancy, the time ratio at which one network occupies the radio channel. Buffering time while waiting for a packet to arrive at an opposite node is expected to reduce the duration ratio of band occupancy. In this paper, we provide the theoretical analysis of the duration ratio of band occupancy and the mean waiting time for full-duplex communication with and without buffering time under traffic that is not fully buffered based on the queueing theory as well as the closed-form results. We also present the results of simulations of the duration ratio of band occupancy and the mean waiting time. The basic analysis provided in this paper shows how the mean waiting time and the duration ratio of band occupancy are affected by the buffering time. Under practical unsaturated asymmetrical up and down traffic load, the results suggest that the buffering time should not be set at the node which has a higher traffic intensity compared with another node. In addition, when the buffering time is half the packet length, the duration ratio of band occupancy is reduced by approximately 15%.
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spelling doaj.art-e0e06ed4df8642a9bbfe4934743e7bb32022-12-21T20:19:48ZengIEEEIEEE Access2169-35362019-01-0171208122310.1109/ACCESS.2018.28867138576501Buffering Time for Wireless Full-Duplex Systems Under Random ArrivalMakoto Kobayashi0https://orcid.org/0000-0001-9522-2092Shunsuke Saruwatari1Takashi Watanabe2Department of Information Networking, Graduate School of Information Science and Technology, Osaka University, Suita, JapanDepartment of Information Networking, Graduate School of Information Science and Technology, Osaka University, Suita, JapanDepartment of Information Networking, Graduate School of Information Science and Technology, Osaka University, Suita, JapanFull-duplex wireless communication has the potential to double the capacity of wireless networks by reducing the duration ratio of band occupancy of transmissions. However, under practical non-fully buffered traffic, a full-duplex capability cannot always reduce the duration ratio of band occupancy, the time ratio at which one network occupies the radio channel. Buffering time while waiting for a packet to arrive at an opposite node is expected to reduce the duration ratio of band occupancy. In this paper, we provide the theoretical analysis of the duration ratio of band occupancy and the mean waiting time for full-duplex communication with and without buffering time under traffic that is not fully buffered based on the queueing theory as well as the closed-form results. We also present the results of simulations of the duration ratio of band occupancy and the mean waiting time. The basic analysis provided in this paper shows how the mean waiting time and the duration ratio of band occupancy are affected by the buffering time. Under practical unsaturated asymmetrical up and down traffic load, the results suggest that the buffering time should not be set at the node which has a higher traffic intensity compared with another node. In addition, when the buffering time is half the packet length, the duration ratio of band occupancy is reduced by approximately 15%.https://ieeexplore.ieee.org/document/8576501/Full-duplexwireless LANs
spellingShingle Makoto Kobayashi
Shunsuke Saruwatari
Takashi Watanabe
Buffering Time for Wireless Full-Duplex Systems Under Random Arrival
IEEE Access
Full-duplex
wireless LANs
title Buffering Time for Wireless Full-Duplex Systems Under Random Arrival
title_full Buffering Time for Wireless Full-Duplex Systems Under Random Arrival
title_fullStr Buffering Time for Wireless Full-Duplex Systems Under Random Arrival
title_full_unstemmed Buffering Time for Wireless Full-Duplex Systems Under Random Arrival
title_short Buffering Time for Wireless Full-Duplex Systems Under Random Arrival
title_sort buffering time for wireless full duplex systems under random arrival
topic Full-duplex
wireless LANs
url https://ieeexplore.ieee.org/document/8576501/
work_keys_str_mv AT makotokobayashi bufferingtimeforwirelessfullduplexsystemsunderrandomarrival
AT shunsukesaruwatari bufferingtimeforwirelessfullduplexsystemsunderrandomarrival
AT takashiwatanabe bufferingtimeforwirelessfullduplexsystemsunderrandomarrival