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Novel Cooperative Transmission Technique of OFDMA Systems with Multiple Antennas for Broadband Wireless Access

  • Myung-Sun Baek
  • Young-Hwan You
  • Hyoung-Kyu Song
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 4)

A combination of OFDM with FDMA (called OFDMA) is regarded as a promising solution for improving the performance of BWA with multiple users. Although transmit diversity is clearly advantageous in OFDMA systems, it may not be possible that practical OFDMA systems have more than two antennas due to size, cost, or hardware limitations. Cooperative networks aim to utilize the available terminals as a collection of distributed antennas for the transmission of signals from one end of the network to the other. This paper focuses on design and performance evaluation of IEEE 802.16 MIMO-OFDMA systems with cooperative diversity. In this chapter, for high-rate and reliable transmission, efficient transmission codes of cooperative transmission are proposed for each transmission case (single transmission case or mutual transmission case).

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Myung-Sun Baek
    • 1
  • Young-Hwan You
    • 1
  • Hyoung-Kyu Song
    • 1
  1. 1.uT Communication Research InstituteSejong UniversityKorea

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