Abstract
Space-time coding is a powerful technique to improve the error performance of wireless communications systems by using multiple transmit antenna. In this paper, a new 4-PSK 4-state space-time trellis codes (STTCs) with two transmit antennas for slow fading channels is presented by improving the design parameters of the code. From the simulation results, it is shown that new code is superior to the TSC code and the BBH code by about 0.2 dB at a BER of 10− 4 over slow Rayleigh fading channels, about 0.4~1.3 dB over slow Rician fading channels. Moreover, it is also shown that new code with Gray mapping can be obtained gains by about 0.1~0.6 dB while keeping the complexity almost the same as the code with natural mapping.
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Jin, I.S. (2010). The Improved 4-PSK 4-State Space-Time Trellis Code with Two Transmit Antennas. In: Kim, Th., Vasilakos, T., Sakurai, K., Xiao, Y., Zhao, G., Ślęzak, D. (eds) Communication and Networking. FGCN 2010. Communications in Computer and Information Science, vol 120. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17604-3_34
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DOI: https://doi.org/10.1007/978-3-642-17604-3_34
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-17603-6
Online ISBN: 978-3-642-17604-3
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