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Weighted space-time trellis codes

Weighted space-time trellis codes

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In existing space-time trellis codes (STTCs), the transmit power is equally distributed across all transmit antennas. However, this power allocation strategy is not optimum regarding the error performance. A new scheme is proposed, referred to as the weighted space-time trellis codes with dynamic transmit power allocation (WSTTCs/DTPA). Compared with the general open-loop STTCs, WSTTCs/DTPA have better performance and achieve a full diversity order regardless of STTCs adopted at the transmitter.

Inspec keywords: transmitting antennas; trellis codes; error statistics; space-time codes

Other keywords: power allocation strategy; transmit antennas; dynamic transmit power allocation; error performance; weighted space-time trellis codes

Subjects: Codes; Antennas

References

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      • Chen, Z., Vucetic, B., Yuan, J.: `Comparison of three closed-loop transmit diversity schemes', Proc. IEEE Int. Vehicular Technology Conf., April 2003, Jeju Island, Korea, 1, p. 751–754.
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      • Jafar, S.A., Goldsmith, A.: `On optimality of beamforming for multiple antenna systems with imperfect feedback', Proc. IEEE Int. Symp. Information Theory, June 2001, Washington, DC, USA, p. 321.
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      • J.R. Schott . (1997) Matrix analysis for statistics.
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