Performance Analysis of Adaptive Interleaving for MIMO-OFDM Systems

Abstract

In this paper, an adaptive interleaving scheme for multiple-input and multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems is proposed. The scheme could better exploit the instantaneous channel variation by rearranging the transmitted symbols according to the quasi-instantaneous channel SNR of the OFDM frame. The purpose is to break up a long burst channel error so that overall bit error probability is reduced. The upper bound of pairwise error probability (PEB) of the MIMO-OFDM systems is investigated. The code gain and diversity gain of the proposed scheme are given. The result shows that the major factor affecting performance of the proposed scheme is SNR, channel order and the number of receive antenna. Extensive simulations show that significant SNR can be obtained with the proposed scheme and the MIMO-OFDM case has a performance improvement over the single antenna case. Compared with block interleaving, for 2Tx- 2Rx case at a BER of 10 (exp -2), adaptive interleaving offers a 5dB improvement.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2005
Accession Number
ADA447407

Entities

People

  • Fengye Hu
  • Shuxun Wang
  • Yang Liu

Organizations

  • Jilin University

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Channel Estimation
  • Channel State Information
  • Coding
  • Communication Systems
  • Decoding
  • Digital Communications
  • Error Correction Codes
  • Errors
  • Frequency
  • Frequency Domain
  • Frequency Response
  • Modulation
  • Multiple Input Multiple Output
  • Orthogonal Frequency Division Multiplexing
  • Probability
  • Symbols
  • Wireless Communications

Fields of Study

  • Engineering

Readers

  • Radio communications and signal processing.