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For virtual multiple-input-single-output (MISO) orthogonal frequency division multiplexing (OFDM) system, efficient resource allocation is required to provide high transmission throughput. This paper proposes two adaptive pilot-assistant subcarrier allocation schemes - the 1st scheme assumes the cluster head as receiving node (S1), and the 2nd introduces a contention process to choose the best receiving...
A physical-layer feedback space (PFS) based relay selection (PFS/RS) for Virtual MIMO Systems is proposed in this paper. Relay selection along the multi-hop relay chain is performed on a two-hop segment basis. For each two-hop segment, cluster head of the first cluster (CH1) initiates relay selection by sending an invitation message to the second and third cluster. Each candidate relay in the second...
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