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Wireless Networks

, Volume 24, Issue 5, pp 1729–1738 | Cite as

Random network coding in MIMO system

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Abstract

Random network coding (RNC) has emerged as a promising technology. In this paper, we seek to answer the question that how RNC benefits cellular systems. A novel RNC-based space–time code (STC) scheme is proposed for the data transmission in MIMO system. In this scheme, RNC is integrated with the STC design for MIMO system. And then, the improved diversity order and multiplexing gain of the RNC-based STC scheme are analyzed and derived. This RNC-based STC scheme can also have benefit of RNC on some practical applications. After that, a general RNC-based STC protocol which describes the data transmission flow in practical system is designed for MIMO transmission. Finally, the performance of RNC-based STC scheme is evaluated through both link-level and system-level simulations. The simulation results show that RNC can provide extra diversity gain, multiplexing gain, or reduce the decoding complexity, and improve the bandwidth efficiency and user fairness in cellular system with MIMO.

Keywords

5G Random network coding (RNC) MIMO Diversity order Multiplexing gain STC 

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.Wireless Theories and Technologies (WT&T)Beijing University of Posts and Telecommunications (BUPT)BeijingChina

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