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Precoded spatial multiplexing MIMO system with spatial component interleaver.

Xiang Gao1, Zhanji Wu1

  • 1School of Information and Communication Engineering, Beijing University of Posts & Telecommunications, Xitucheng Road 10, Beijing, 100876 China.

EURASIP Journal on Wireless Communications and Networking
|March 26, 2016
PubMed
Summary
This summary is machine-generated.

This study optimizes precoded bit-interleaved coded modulation (BICM) spatial multiplexing multiple-input multiple-output (MIMO) systems using a spatial component interleaver. Optimized systems show significant performance gains over conventional designs.

Keywords:
Bit-interleaved coded modulation (BICM)Multiple-input multiple-output (MIMO)PrecodingRayleigh channelsSignal space diversity (SSD)Spatial multiplexing

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Area of Science:

  • Wireless communication systems
  • Information theory
  • Signal processing

Background:

  • Multiple-Input Multiple-Output (MIMO) systems enhance wireless communication capacity.
  • Precoded Bit-Interleaved Coded Modulation (BICM) improves data transmission reliability.
  • Spatial component interleaving is crucial for mitigating MIMO channel impairments.

Purpose of the Study:

  • To investigate and optimize the performance of precoded BICM-MIMO systems with spatial component interleaving.
  • To develop design criteria for optimal spatial component interleavers.
  • To propose novel precoding strategies for limited feedback systems.

Main Methods:

  • Derivation of average pairwise error probability (PEP) for ideal precoded BICM-MIMO systems.
  • Analysis of PEP to establish optimum spatial Q-component interleaver design criteria.
  • Proposal of SNR-based precoding matrix selection criteria for limited feedback systems.
  • Investigation of optimal constellation rotation angles based on Average Mutual Information (AMI) maximization.

Main Results:

  • An optimum spatial Q-component interleaver design criterion was established to minimize error probability.
  • Novel effective SNR-based precoding matrix selection criteria were proposed for limited feedback systems.
  • Optimal constellation rotation angles were identified to maximize AMI.
  • Simulation results demonstrated significant performance advantages for the optimized system.

Conclusions:

  • The optimized spatial multiplexing MIMO system with spatial component interleaver offers substantial performance improvements.
  • The proposed design criteria and precoding strategies effectively enhance system reliability and efficiency.
  • This research contributes to the advancement of high-performance wireless communication systems.