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New Relay Protocols with AMC Scheme for Throughput Enhancement in LTE-Advanced System

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Abstract

We propose an adaptive modulation and coding (AMC) scheme using relay protocols AF, DF and DMF. The AMC scheme is used for improving the throughput and reliability of a communication system, using different modulation and coding schemes. We analyze the performance of relay protocols with the AMC scheme and observe that relay protocols with the AMC scheme are capable of providing better average throughput at a lower signal to noise ratio (SNR) level as compared to the conventional scheme with no AMC. We perform Monte Carlo simulations based on 3GPP long term evolution-advanced parameters to prove the performance comparison of adaptive modulation and coding scheme (MCS) relay protocols with non-adaptive MCS relay protocols. The simulation results of the proposed system with adaptive MCS prove that among the amplify-and-forward (AF), decode-and-forward (DF) and de-modulate-and-forward (DMF), the DMF protocol performs best, at a lower SNR value and higher average throughput.

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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 (2013R1A1A2007779). This research was supported by the MSIP (Ministry of Science, ICT & 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, Sangmi Moon, Bora Kim & Intae Hwang

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

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  1. Saransh Malik
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  2. Sangmi Moon
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  3. Bora Kim
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  4. Cheolwoo You
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  5. Huaping Liu
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  6. Intae Hwang
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Correspondence to Intae Hwang.

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Malik, S., Moon, S., Kim, B. et al. New Relay Protocols with AMC Scheme for Throughput Enhancement in LTE-Advanced System. Wireless Pers Commun 74, 773–788 (2014). https://doi.org/10.1007/s11277-013-1320-8

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  • DOI: https://doi.org/10.1007/s11277-013-1320-8

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