Two-way cyclotomic orthogonal space-time transmission scheme for asynchronous cooperative systems
Yudong Ma, Hua Jiang, Sidan Du · 2014 International Conference on Computing, Networking and Communications (ICNC) · 2014
In this paper, a novel two-way cyclotomic orthogonal space-time transmission scheme (TCOSTS) is designed for asynchronous cooperative systems. In TCOSTS, the two terminals transmit signals to each other simultaneously to double the transmission rate. By exploiting cyclotomic orthogonal space-time block code (COSTBC), this scheme achieves full rate, full diversity and low decoding complexity. Also, higher diversity order is available by employing more relay nodes. Benefiting from OFDM asynchronous system architecture, operations implemented at relay nodes are very simple, and the scheme is tolerant of delays between relay nodes.