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In this letter, we investigate a heterogeneous multi-hop relaying system in which relay nodes (RNs) use different relaying methods due to the different versions or the cost structure of deployed RN equipments. Especially, we provide the outage performance of heterogeneous multiple-input multiple-output (MIMO) relaying of orthogonal space-time block code (OSTBC) transmission for spatially correlated...
Phase rotation and link selection methods are proposed to increase the post-processing signal-to-noise ratio of two-path relay system, in which source and two relays transmit 2-by-2 space-time block coded (STBC) signals. Computer simulation verifies that the proposed methods can provide significant performance enhancement over a naive two-path relay system.
A distributed space-time block code (STBC) based on a decode-and-forward (DF) protocol is proposed for two-path successive relaying. By making the two relay nodes transmit and listen in turn, the proposed distributed STBC can achieve not only full rate but also full diversity when the relay nodes can correctly decode the information symbols from the source node and when the inter-relay channels are...
We investigate the outage performance of a two-phase two-way decode-and-forward (DF) relay channel in which each transceiver is equipped with two antennas, and uses the Alamouti orthogonal space-time block code (OSTBC) for transmission. The focus is on attaining good outage performance as enabled by the use of OSTBC transmissions in both phases, along with a low complexity near-optimum receiver in...
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