ETRI Journal
- Volume 28 Issue 1
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- Pages.87-90
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- 2006
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- 1225-6463(pISSN)
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- 2233-7326(eISSN)
A Full Rate Quasi-orthogonal STF-OFDM with DAC-ZF Decoder over Wireless Fading Channels
- Jin, Ji-Yu (Department of Information and Communication Engineering, Yeungnam University) ;
- Ryu, Kwan-Woong (Department of Information and Communication Engineering, Yeungnam University) ;
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Park, Yong-Wan
(Department of Information and Communication Engineering, Yeungnam University)
- Received : 2005.09.08
- Published : 2006.02.28
Abstract
In this letter, we propose a quasi-orthogonal space-time-frequency (QOSTF) block coded orthogonal frequency division multiplexing (OFDM) that can achieve full symbol rate with four transmit antennas. Since the proposed QOSTF-OFDM cannot achieve full diversity, we use a diversity advantage collection with zero forcing (DAC-ZF) decoder to compensate the diversity loss at the receiving side. Due to modulation advantage and collected diversity advantage, the proposed scheme exhibits a better bit-error rate performance than other orthogonal schemes.