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Hybrid Multihop Relay Protocol Using Dynamic Power Allocation for LTE-Advanced System

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Abstract

In this paper, an adaptive relay scheme of hybrid relay system is proposed based on channel state information of the received signal-to-noise ratio (SNR) at the relay node. hybrid relay system is comprised of amplify-and-forward, decode-and-forward and demodulate-and-forward together in cooperative networks. The relay protocols are selected adaptively, on the basis of power allocation (PA) constraint, or the SNR value at previous hop. Thus multihop performance of the relay system can be improved by applying PA allocation scheme. The simulation results show that the performance of the novel hybrid relay protocol can be improved significantly compared to the conventional hybrid system in terms of error performance and link efficiency.

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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 research was supported by the MSIP (Ministry of Science, ICT and Future Planning), Korea, under the ITRC (Information Technology Research Center) support program (NIPA-2013-H0301-13-3005) supervised by the NIPA (National IT Industry Promotion Agency).

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Authors and Affiliations

  1. Department of Electronics and Computer Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju, 500-757, Republic of Korea

    Saransh Malik, Bora Kim, Sangmi Moon & Intae Hwang

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

Authors
  1. Saransh Malik
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  2. Bora Kim
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  3. Sangmi Moon
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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. Intae Hwang
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Correspondence to Jeong-Ho Kim.

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Malik, S., Kim, B., Moon, S. et al. Hybrid Multihop Relay Protocol Using Dynamic Power Allocation for LTE-Advanced System. Wireless Pers Commun 77, 2945–2958 (2014). https://doi.org/10.1007/s11277-014-1678-2

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  • DOI: https://doi.org/10.1007/s11277-014-1678-2

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