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| Turbo Per-tone Equalization for MIMO OFDM Systems |
| Liu Zhan-li; Zhao Chun-ming; Wang Jing; Meng Qing-min |
| State Key Laboratory of Mobile Communications Southeast University, Nanjing 210096, China |
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Abstract To handle co-antenna interference, intersymbol interference (ISI) and intercarrier interference (ICI) caused by insufficient cyclic prefix, a MMSE-based Turbo per-tone equalization is presented for MIMO OFDM systems in this paper. A Soft-Input Soft-Out (SISO) per-tone equalizer exchanges soft information with SISO channel decoder through iterative process. Simulation results show that the proposed Turbo per-tone equalizers can effectively exploit time diversity and space diversity and offer performance gain over non-iterative equalizers.
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Received: 16 May 2005
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2007, Vol. 29 
