A general construction of space-time trellis codes for PSK signal sets

Narayanan, A. T. ; Rajan, B. S. (2003) A general construction of space-time trellis codes for PSK signal sets In: IEEE Global Telecommunications Conference, 2003. GLOBECOM '03, 1-5 December 2003, San Francisco, USA.

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Official URL: http://ieeexplore.ieee.org/document/1258583/

Related URL: http://dx.doi.org/10.1109/GLOCOM.2003.1258583

Abstract

The diversity order and coding gain are crucial for the performance of a multiple antenna communication system. It is known that Space-time Trellis Codes (STTC) can be used to achieve these objectives. In particular, we can use STTCs to obtain large coding gains. Many attempts have been made to construct STTCs which achieve full-diversity and good coding gains, though a general method of construction does not exist. Delay diversity code (rate-1) is known to achieve full-diversity, for any number of transmit antennas and any signal set, but does not give a good coding gain. A product distance code based delay diversity scheme (Tarokh, V. et al., IEEE Trans. Inform. Theory, vol.44, p.744-65, 1998) enables one to improve the coding gain and construct STTCs for any given number of states using coding in conjunction with delay diversity; it was stated as an open problem. We achieve such a construction. We assume a shift register based model to construct an STTC for any state complexity. We derive a sufficient condition for this STTC to achieve full-diversity, based on the delay diversity scheme. This condition provides a framework to do coding in conjunction with delay diversity for any signal constellation. Using this condition, we provide a formal rate-1 STTC construction scheme for PSK signal sets, for any number of transmit antennas and any given number of states, which achieves full-diversity and gives a good coding gain.

Item Type:Conference or Workshop Item (Paper)
Source:Copyright of this article belongs to Institute of Electrical and Electronics Engineers.
ID Code:111230
Deposited On:08 Dec 2017 10:37
Last Modified:08 Dec 2017 10:37

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