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Lattice reduction aided belief propagation for massive MIMO detection

  • Senjie ZhangEmail author
  • Zhiqiang He
  • Kai Niu
  • Shi Jin
  • Hong Cheng
Research Paper
  • 48 Downloads

Abstract

Efficient massive MIMO detection for practical deployment, which is with spatially correlated channel and high-order modulation, is a challenging topic for the fifth generation mobile communication (5G). In this paper, lattice reduction aided belief propagation (LRA-BP) is proposed for massive MIMO detection. LRA-BP applies the message updating rules of Markov random field based belief propagation (MRF-BP) in lattice reduced MIMO system. With the lattice reduced, well-conditioned MIMO channel, LRA-BP obtains better message updating and detection performance in spatially correlated channel than MRF-BP. Log-domain arithmetic is used in LRA-BP for computational complexity reduction. Simulation result shows that LRA-BP outperforms MRF-BP with 3–10 dB in terms of required SNR for 1% packet error rate in spatially correlated channel for 256-QAM. We also show that LRA-BP requires much lower complexity compared with MRF-BP.

Keywords

massive MIMO MIMO detection belief propagation graph-based detection lattice reduction Markov random field 

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Copyright information

© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Senjie Zhang
    • 1
    Email author
  • Zhiqiang He
    • 1
  • Kai Niu
    • 1
  • Shi Jin
    • 2
  • Hong Cheng
    • 3
  1. 1.Key Laboratory of Universal Wireless Communications, Ministry of EducationBeijing University of Posts and TelecommunicationsBeijingChina
  2. 2.National Mobile Communications Research LaboratorySoutheast UniversityNanjingChina
  3. 3.Intel Labs ChinaBeijingChina

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