Construction of Low Delay Maximal Rate SingleSymbol Decodable Distributed STBC with Channel Phase Information

Transactions of Nanjing University of Aeronautics & Astronautics

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Archive > Volume 33 Issue 6 > 2016,33(6):726-732 Prev Next

Construction of Low Delay Maximal Rate SingleSymbol Decodable Distributed STBC with Channel Phase Information

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Abstract:

Exploiting the sourcetorelay channel phase information at the relays can increase the rate upperbound of distributed orthogonal spacetime block codes (STBC) from 2/K to 1/2, where K is the number of relays. This technique is known as distributed orthogonal spacetime block codes with channel phase information (DOSTBCCPI). However, the decoding delay of existing DOSTBCCPIs is not optimal. Therefore, based on the rate of 1/2 balanced complex orthogonal design (COD), an algorithm is provided to construct a maximal rate DOSTBCCPI with only half the decoding delay of existing DOSTBCCPI. Simulation results show that the proposed method exhibits lower symbol error rate than the existing DOSTBCCPIs.

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