Information outage probability and diversity order of symmetric coordinate interleaved orthogonal designs

  • Authors:

  • Hoojin Lee;J. G. Andrews;E. J. Powers

  • Affiliations:

  • Dept. of Electr. & Comput. Eng., Univ. of Texas at Austin, Austin, TX;-;-

  • Venue:
  • IEEE Transactions on Wireless Communications - Part 1
  • Year:
  • 2008

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Abstract

Space-time block codes (STBCs) from coordinate interleaved orthogonal designs (CIODs) have attracted considerable attention lately due to their full-diversity and single-symbol decodability for multiple antenna systems. In this letter, we analyze the information outage probability of STBCs from symmetric structured CIODs in quasi-static frequency-nonselective Rayleigh fading channels. By using the probability density function (PDF) and the cumulative distribution function (CDF) of the product of two i.i.d. chi-square random variables and then exploiting a moment-matching approximation technique, we derive an accurate closed-form approximation for the information outage probability of symmetric CIODs and a corresponding asymptotic diversity order, the results of which can be used to theoretically predict the performance of symmetric CIODs with various antenna configurations in non-ergodic Rayleigh fading channels. Some simulations are performed to verify the accuracy of the derived formulas and illustrate the theoretical results.