Low Complex Decision-Feedback Equalization for Time-Reversal Quasi-Orthogonal Space-Time Block Codes

スポンサーリンク

概要

• 論文の詳細を見る

• In this paper, we design a practical time-reversal quasi-orthogonal space-time block code (TR-QO-STBC) system for broadband multi-input multi-output (MIMO) communications. We first modify the TR-QO-STBC encoding structure so that the interference between the transmitted blocks can be completely removed by linear processing. Two low complex decision-feedback equalization (DFE) schemes are then proposed. One is built from the frequency-domain decision-feedback equalization (FD-DFE). The derived bi-directive FD-DFE (BiD-FD-DFE) cancels the interference among the successive symbols along the time axis. The other one is the enhanced V-BLAST, which cancels the interference between the real and imaginary parts of the spectral components. They have distinct performance characteristics due to the different interference-cancellation strategies. The underlying orthogonal and symmetric characters of TR-QO-STBC are exploited to reduce the computational complexity. Computer simulations confirm that the proposed equalizers can achieve better performance than the existing schemes.

著者

• FENG Ang

  MOE Key Lab for Intelligent Networks and Network Security, School of Electronics and Information Eng

• YIN Qinye

  MOE Key Lab for Intelligent Networks and Network Security, School of Electronics and Information Eng

関連論文

• Low Complex Decision-Feedback Equalization for Time-Reversal Quasi-Orthogonal Space-Time Block Codes
• Low Complex Decision-Feedback Equalization for Time-Reversal Quasi-Orthogonal Space-Time Block Codes
• Distributed Ranging Method for Wireless Sensor Network Localization
• Space Frequency Code for Cooperative Communications with both Timing Errors and Carrier Frequency Offsets

スポンサーリンク