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An improved space-time-frequency code using digital phase sweeping

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2 Author(s)
Penghong Chu ; Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China ; Wen Zhong

An improved space-time-frequency (STF) code using digital phase sweeping (DPS) is proposed for multi-input multi-output-orthogonal frequency division multiplexing (MIMO-OFDM) systems. It achieves full diversity attainable over frequency-selective channels and works for arbitrary power delay profile. The maximum transmission rate of the proposed code is one symbol per channel use independently of the number of transmit-antennas. We also show that the proposed code has reduced decoding complexity (1/8 of the space-frequency (SF) codes in [1], [2] when the number of transmit-antennas is even). Finally, simulation results are given to show that the proposed code performs better than some known codes in [1], [3].

Published in:

Communication Systems, 2008. ICCS 2008. 11th IEEE Singapore International Conference on

Date of Conference:

19-21 Nov. 2008