Due to variations in node mobility or differences in the scattering environment, wireless links
in multi-user systems often experience non-identical coherence intervals; this is true also in …

Non-orthogonal transmission of data and pilots using product superposition is known to be
highly efficient under unequal coherence conditions in a downlink channel, improving …

When the individual links in a downlink channel have different coherence intervals, previous
studies have shown that pilot reuse can achieve not only rate gains, but also gains in …

This paper studies the MIMO relay with nonidentical link coherence times, a condition known
as coherence diversity. This happens in practice when a node or the scatterers surrounding …

This paper studies MIMO relays with non-identical link coherence times, a frequently
occurring condition when, eg, the nodes in the relay channel do not all have the same …

The links in wireless networks may have non-identical spatial correlation or coherence times
when nodes have different scatters around them or they have unequal mobility. This …