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Diversity-and-multiplexing tradeoff and throughput of superposition coding relaying strategy

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Journal of Electronics (China)

Abstract

While the Network Coding cooperative relaying (NC-relaying) has the merit of high spectral efficiency, Superposition Coding relaying (SC-relaying) has the merit of high throughput. In this paper, a novel concept, coded cooperative relaying, is presented, which is a unified scheme of the NC-relaying and SC-relaying. For the SC-relaying strategy which can be considered one-way coded relaying scheme with multi-access channel, the close-form solution of the outage probabilities of the basic signal and additional signal are obtained firstly. Secondly, the Diversity-and-Multiplexing Tradeoff (DMT) characteristics of basic signal and additional signal are investigated entirely as well as the optimal close-form solutions. The compared numerical analysis shows the evaluation error of throughput based on the close-form solution is about 0.15 nats, which is within the acceptable error range. Due to the mutual effect between the both source signals, the available maximal values of the two multiplexing gains are less than 1.

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Author information

Authors and Affiliations

  1. Wireless Communications Key Lab of Jiangsu Province, Nanjing University of Posts and Telecommunications, Nanjing, 210003, China

    Xiangdong Jia & Longxiang Yang

  2. College of Mathematics and Information Science, Northwest Normal University, Lanzhou, 730070, China

    Xiangdong Jia

  3. Nanjing University of Posts and Telecommunications, Box 188, No. 66, Xinmofan Road, Nanjing, 210003, China

    Longxiang Yang

Authors
  1. Xiangdong Jia
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  2. Longxiang Yang
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Additional information

Supported by the 973 Project of China (No. 2007CB 310607), the 863 Key Project of “Key Technologies and System for Trunk Communication Based on TD-SCDMA” of China (No. 2009AA011302), and the Open Research Fund of National Mobile Communications Research Lab, Southeast University (N200604).

Communication author: Yang Longxiang, born in 1966, male, Ph.D., Professor.

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Jia, X., Yang, L. Diversity-and-multiplexing tradeoff and throughput of superposition coding relaying strategy. J. Electron.(China) 27, 166–176 (2010). https://doi.org/10.1007/s11767-010-0316-y

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  • DOI: https://doi.org/10.1007/s11767-010-0316-y

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