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Advanced Receiver Based on Soft Decision for Interference Suppression and Cancellation in a Sidehaul System

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Abstract

Recently, the 3rd Generation Partnership Project (3GPP) developed a sidehaul system to cope with rapidly increasing mobile data traffic. However, numerous challenging technical problems remain to be resolved. One of the major problems is interference management between small cells. In this paper, we propose an advanced receiver based on soft decision to reduce the interference from neighboring cells in the sidehaul system. The proposed receiver can suppress and cancel interference by integrating the interference rejection combining technique with successive interference cancellation. The interference signal is updated using soft information expressed by a log-likelihood ratio. We perform a simulation based on the 20-MHz bandwidth of the 3GPP LTE-Advanced technology. Simulation results show that the proposed receiver can achieve a lower error rate and a higher throughput compared to conventional receivers.

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Acknowledgments

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2013R1A1A2007779). This work was supported by the ICT R&D program of MSIP/IITP (14-000-04-001, Development of 5G Mobile Communication Technologies for Hyper-connected Smart Services).

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Authors and Affiliations

  1. Department of Electronics and Computer Engineering, Chonnam National University, 300 Yongbongdong Bukgu, Gwangju, 500-757, Republic of Korea

    Sangmi Moon, Hun Choe, Myeonghun Chu, Dae Jin Kim & Intae Hwang

  2. Department of Information and Communications Engineering, Myongji University, San 38-2 Namdong, Cheoingu, Yongin, Gyeonggi-Do, 449-728, Republic of Korea

    Cheolwoo You

  3. School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR, 97331-3211, USA

    Huaping Liu

  4. Department of Electronics Engineering, Ewha Womans University, 11-1 Daehyundong, Seodaemungu, Seoul, 120-750, Republic of Korea

    Jeong-Ho Kim

  5. Communications & Internet Research Laboratory, Electronics and Telecommunications Research Institute, 218 Gajeong-ro, Yuseong-gu, Daejeon, 305-700, Republic of Korea

    Jihyung Kim

Authors
  1. Sangmi Moon
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  2. Hun Choe
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  3. Myeonghun Chu
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  4. Cheolwoo You
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  5. Huaping Liu
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  6. Jeong-Ho Kim
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  7. Jihyung Kim
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  8. Dae Jin Kim
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  9. Intae Hwang
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Correspondence to Intae Hwang.

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Moon, S., Choe, H., Chu, M. et al. Advanced Receiver Based on Soft Decision for Interference Suppression and Cancellation in a Sidehaul System. Wireless Pers Commun 87, 1241–1263 (2016). https://doi.org/10.1007/s11277-015-3051-5

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  • DOI: https://doi.org/10.1007/s11277-015-3051-5

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