Interference Management Using Crossed-Slot in Dynamic Time Division Duplexing Systems

Hyun Geon Kim; Ho Shin Cho

doi:10.1109/ACCESS.2019.2942199

Interference Management Using Crossed-Slot in Dynamic Time Division Duplexing Systems

Hyun Geon Kim, Ho Shin Cho

School of Electronics Engineering

Kyungpook National University

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Dynamic time division duplex is a promising 5th generation (5G) mobile communication technology that can improve spectrum efficiency by meeting the demands of asymmetric and rapidly varying uplink and downlink traffic. However, when two adjacent cells have opposite transmission directions and share a time slot, it causes serious interference called crossed-slot interference. In this paper, we show that a crossed time slot shared by two adjacent cells can improve the signal-To-interference ratio (SIR) depending on the location of the user equipment (UE). We mathematically derive a beneficial UE region and show through simulations that the opportunistic usage of crossed-slot transmissions can mitigate interference and achieve a high SIR.

Original language	English
Article number	8843849
Pages (from-to)	135377-135385
Number of pages	9
Journal	IEEE Access
Volume	7
DOIs	https://doi.org/10.1109/ACCESS.2019.2942199
State	Published - 2019

Keywords

5G mobile communication
crossed-slot interference
dynamic time division duplex
interference mitigation

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10.1109/ACCESS.2019.2942199

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title = "Interference Management Using Crossed-Slot in Dynamic Time Division Duplexing Systems",

abstract = "Dynamic time division duplex is a promising 5th generation (5G) mobile communication technology that can improve spectrum efficiency by meeting the demands of asymmetric and rapidly varying uplink and downlink traffic. However, when two adjacent cells have opposite transmission directions and share a time slot, it causes serious interference called crossed-slot interference. In this paper, we show that a crossed time slot shared by two adjacent cells can improve the signal-To-interference ratio (SIR) depending on the location of the user equipment (UE). We mathematically derive a beneficial UE region and show through simulations that the opportunistic usage of crossed-slot transmissions can mitigate interference and achieve a high SIR.",

keywords = "5G mobile communication, crossed-slot interference, dynamic time division duplex, interference mitigation",

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AB - Dynamic time division duplex is a promising 5th generation (5G) mobile communication technology that can improve spectrum efficiency by meeting the demands of asymmetric and rapidly varying uplink and downlink traffic. However, when two adjacent cells have opposite transmission directions and share a time slot, it causes serious interference called crossed-slot interference. In this paper, we show that a crossed time slot shared by two adjacent cells can improve the signal-To-interference ratio (SIR) depending on the location of the user equipment (UE). We mathematically derive a beneficial UE region and show through simulations that the opportunistic usage of crossed-slot transmissions can mitigate interference and achieve a high SIR.

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Interference Management Using Crossed-Slot in Dynamic Time Division Duplexing Systems

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Keywords

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