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Decision Directed Multiple-Relay Diversity Detector in Asynchronous Cooperative Communication Systems

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Abstract

In this paper, decision directed spatial diversity combining algorithm is presented for asynchronous cooperative communication systems with amply-and-forward relays in frequency flat fading channels. Cyclic prefix assisted single carrier transmission combined with joint frequency domain equalization is carried out to obtain the initial detection solution. Based on that, spatial diversity is employed to improve the performance, where every relayed component in the received signal is decoupled using linear interference cancellation technique, and then the components are synchronized and combined together, so the diversities supplied by the asynchronous relays are acquired. Numerical simulations show the effectiveness of the proposed algorithm.

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Acknowledgement

The work was supported by Natural Science Foundation of China under Grant 61571340 and in part by the Fundamental Research Funds for the Central Universities under Grant JB150113, and in part by the Program of Introducing Talents of Discipline to Universities under Grant B08038.

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Authors and Affiliations

  1. State Key Laboratory of Integrated Services Networks, Xidian University, Xi’an, 710071, Shannxi, China

    Jieling Wang, Yang Xu, Zan Li & Hong Yang

  2. Collaborative Innovation Center of Information Sensing and Understanding, Xidian University, Xi’an, 710071, Shannxi, China

    Jieling Wang, Yang Xu, Zan Li & Hong Yang

  3. China Academy of Space Technology, Beijing, 100094, China

    Hong Yang

  4. Advanced Institute for Computational Science (AICS), Wako, Saitama-ken, Japan

    Chongke Bi

Authors
  1. Jieling Wang
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  2. Yang Xu
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  3. Zan Li
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  4. Hong Yang
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  5. Chongke Bi
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Correspondence to Jieling Wang.

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Wang, J., Xu, Y., Li, Z. et al. Decision Directed Multiple-Relay Diversity Detector in Asynchronous Cooperative Communication Systems. Wireless Pers Commun 95, 4931–4946 (2017). https://doi.org/10.1007/s11277-017-4133-3

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  • DOI: https://doi.org/10.1007/s11277-017-4133-3

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