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Successive interference cancellation (SIC) in V-BLAST systems with asynchronous transmission mode

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Abstract

The V-BLAST system with asynchronous transmission mode first proposed by Shao can achieve full diversity only by using a simple linear detection scheme under zero forcing (ZF) criterion; therefore it gives a reasonable tradeoff between complexity and performance. In this paper, we propose two types of successive interference cancellation (SIC) detection schemes for the asynchronous V-BLAST system, one is characterized by applying M r successive interference cancellators before a maximal ratio combiner (where M t is the number of receive antennas), and the other has a maximal ratio combiner before a successive interference cancellator. Since Type I consumes more energy of the previously detected signals to recover a signal, Type II can offer a better performance and simulations demonstrate its validity.

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Author information

Authors and Affiliations

  1. National Key Lab of Communications, University of Electronic Science and Technology of China, Chengdu, 610054, China

    HuaJiong Lin, YouXi Tang, Lu Guan & ShiHai Shao

Authors
  1. HuaJiong Lin
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  2. YouXi Tang
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  3. Lu Guan
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  4. ShiHai Shao
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Corresponding author

Correspondence to HuaJiong Lin.

Additional information

Supported by the National Natural Science Foundation of China (Grant Nos. 60832007, 60901018, 60902027), and the National High-Tech Research & Development Program of China (Grant No. 2009AA01Z236)

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Lin, H., Tang, Y., Guan, L. et al. Successive interference cancellation (SIC) in V-BLAST systems with asynchronous transmission mode. Sci. China Ser. F-Inf. Sci. 52, 2317–2323 (2009). https://doi.org/10.1007/s11432-009-0220-8

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  • DOI: https://doi.org/10.1007/s11432-009-0220-8

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