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The linear dispersion structure is employed to accommodate the dynamic topology of cooperative networks, as well as to achieve higher throughput than conventional space-time codes based on orthogonal designs. Asynchronous Cooperative Liner Dispersion Codes (ACLDC) are applied to achieve full diversity in the presence of asynchronous reception. To achieve a near ML performance with much lower decoding complexity, the authors present an Ant-Colony Optimization (ACO) based decoder. They demonstrate that the proposed decoder is able to provide the system with a near-ML performance at a significantly reduced complexity.
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