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ZTE Communications ›› 2016, Vol. 14 ›› Issue (S1): 48-53.DOI: DOI:10.3969/j.issn.1673-5188.2016.S1.009

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Research on Interference Cancellation for Switched-on Small Cells in Ultra Dense Network

SUN Yang1, CHANG Yongyu1, WANG Chao1, ZHANG Lu1, ZHANG Yu2, and WANG Xinhui2   

  1. 1. Beijing University of Posts and Telecommunications, Beijing 100876, China<,br/> 2. ZTE Corporation, Shanghai 201203, China
  • 收稿日期:2015-12-19 出版日期:2016-12-01 发布日期:2019-11-29
  • 作者简介:SUN Yang (sunyangemail@bupt.edu.cn) received the BS degree from the Beijing University of Posts and Telecommunications (BUPT), China in 2011. She is currently working toward the PhD degree with the School of Information and Communication Engineering, BUPT. Her current research interests focus on ultra-dense heterogeneous network, massive MIMO and green telecommunications.
    CHANG Yongyu (yychang@bupt.edu.cn) received her PhD from BUPT in July 2005. Since then, she has worked with the Wireless Theory and Technology Laboratory of School of Information and Communication Engineering there. She has been engaged in the research of theories and key technologies in mobile communication for many years. She has made remarkable achievements by leading or participating in many research programs, some of which are supported by the government, such as the China National“973”Program and the China National“863”Program. Her current research is focused on the key technologies and system performance evaluation for 4G/5G wireless networks.
    WANG Chao (874699078@qq.com) received his BE degree in communications engineering from BUPT in 2015. Currently, he is a postgraduate with the Wireless Theory and Technology Laboratory in BUPT. His research focuses on M2M communication, radio resource management and massive MIMO.
    ZHANG Lu (zhanglu.lucas@outlook.com) received his BE and MS degree in communications engineering from BUPT in 2013 and 2016 respectively. His research interests include mobility management and radio resource management in 5G ultradense network.
    ZHANG Yu (Zhang.yu38@zte.com.cn) received her master’s degree in signal and information processing from Nanjing University of Post and Telecommunication, China in 2006. She is a senior standard engineer with ZTE Corporation, engaged in wireless high-level protocol standard research from 2008 with a focus on 5G related topics such as UDN and Massive MIMO from 2014. She is the co-authors of“White Paper of 5G Future Forum”and“White Paper of IMT-2020(5G) Wireless Technology”of ZTE Corporation.
    WANG Xinhui (wangxinhui@zte.com.cn) received his master’s degree in database processing and design from Northeastern University, China in 1998. He is the director of standardization of ZTE Corporation, engaged in standard research and industry relationship from 2006. He has led the 5G Standardization team to work on 3GPP RAN/3GPP SA/IEEE/ITU specifications in different radio aspects from 2013. He is the first authors of ZTE 5G white paper“Driving the Convergence of the Physical and Digital Worlds”, 5G paper“Focusing on User Experience to Build in Converged, Innovative 5G Networks”, and CCSA 5G speech“5G Vision and Challenges”.
  • 基金资助:
    This work was partly supported by ZTE Industry-Academia-Research Cooperation Funds.

Research on Interference Cancellation for Switched-on Small Cells in Ultra Dense Network

SUN Yang1, CHANG Yongyu1, WANG Chao1, ZHANG Lu1, ZHANG Yu2, and WANG Xinhui2   

  1. 1. Beijing University of Posts and Telecommunications, Beijing 100876, China<,br/> 2. ZTE Corporation, Shanghai 201203, China
  • Received:2015-12-19 Online:2016-12-01 Published:2019-11-29
  • About author:SUN Yang (sunyangemail@bupt.edu.cn) received the BS degree from the Beijing University of Posts and Telecommunications (BUPT), China in 2011. She is currently working toward the PhD degree with the School of Information and Communication Engineering, BUPT. Her current research interests focus on ultra-dense heterogeneous network, massive MIMO and green telecommunications.
    CHANG Yongyu (yychang@bupt.edu.cn) received her PhD from BUPT in July 2005. Since then, she has worked with the Wireless Theory and Technology Laboratory of School of Information and Communication Engineering there. She has been engaged in the research of theories and key technologies in mobile communication for many years. She has made remarkable achievements by leading or participating in many research programs, some of which are supported by the government, such as the China National“973”Program and the China National“863”Program. Her current research is focused on the key technologies and system performance evaluation for 4G/5G wireless networks.
    WANG Chao (874699078@qq.com) received his BE degree in communications engineering from BUPT in 2015. Currently, he is a postgraduate with the Wireless Theory and Technology Laboratory in BUPT. His research focuses on M2M communication, radio resource management and massive MIMO.
    ZHANG Lu (zhanglu.lucas@outlook.com) received his BE and MS degree in communications engineering from BUPT in 2013 and 2016 respectively. His research interests include mobility management and radio resource management in 5G ultradense network.
    ZHANG Yu (Zhang.yu38@zte.com.cn) received her master’s degree in signal and information processing from Nanjing University of Post and Telecommunication, China in 2006. She is a senior standard engineer with ZTE Corporation, engaged in wireless high-level protocol standard research from 2008 with a focus on 5G related topics such as UDN and Massive MIMO from 2014. She is the co-authors of“White Paper of 5G Future Forum”and“White Paper of IMT-2020(5G) Wireless Technology”of ZTE Corporation.
    WANG Xinhui (wangxinhui@zte.com.cn) received his master’s degree in database processing and design from Northeastern University, China in 1998. He is the director of standardization of ZTE Corporation, engaged in standard research and industry relationship from 2006. He has led the 5G Standardization team to work on 3GPP RAN/3GPP SA/IEEE/ITU specifications in different radio aspects from 2013. He is the first authors of ZTE 5G white paper“Driving the Convergence of the Physical and Digital Worlds”, 5G paper“Focusing on User Experience to Build in Converged, Innovative 5G Networks”, and CCSA 5G speech“5G Vision and Challenges”.
  • Supported by:
    This work was partly supported by ZTE Industry-Academia-Research Cooperation Funds.

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摘要： In ultra-dense heterogeneous networks, the co-channel interference between small cells turns to be the major challenge to cell throughput improvement, especially for cell edge users. In this paper, we propose a distributed frequency resource allocation approach for interference cancellation, which allocates appropriate frequency resources when a small cell is switched on to reduce the co-channel interference to its neighboring small cells. This frequency resource pre - allocation aims at avoiding co-channel interference between small cells and improving users’throughput. The simulation results show that our proposed scheme can effectively reduce the co-channel interference and achieve considerable gains in users’ throughput.

关键词: ultra-dense network, interference cancellation, frequency resource allocation, cell switch

Abstract: In ultra-dense heterogeneous networks, the co-channel interference between small cells turns to be the major challenge to cell throughput improvement, especially for cell edge users. In this paper, we propose a distributed frequency resource allocation approach for interference cancellation, which allocates appropriate frequency resources when a small cell is switched on to reduce the co-channel interference to its neighboring small cells. This frequency resource pre - allocation aims at avoiding co-channel interference between small cells and improving users’throughput. The simulation results show that our proposed scheme can effectively reduce the co-channel interference and achieve considerable gains in users’ throughput.

Key words: ultra-dense network, interference cancellation, frequency resource allocation, cell switch