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| Turbo-BLAST over Frequency Selective Fading Channels |
| Huang Yong-ming; Yang Lu-xi |
| Department of Radio Engineering, Southeast Univ., Nanjing 210096, China |
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Abstract A novel Turbo-BLAST scheme over frequency selective fading environment is presented in this paper. At the transmitter grouped linear constellation precoded OFDM transmission is employed following the Random Layered Space Time (RLST) coding to exploit the available both multipath and spatial diversity. At the receiver the Turbo receivers with MMSE detector and Sphere Decoding (SD) based detector are compared to explore the tradeoff between performance and complexity. Simulation results demonstrate that the available transmit diversity offered by MIMO environment can be efficiently utilized in the new scheme, while the high data rate from BLAST is retained.
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Received: 28 April 2005
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2006, Vol. 28 
