  We consider the problem of discriminating between two quantum coherent states
by interpreting a single state like being a collection of several successive
copies of weaker coherent states. By means of recent results on multiple-copy
state discrimination, it is possible to give a reinterpretation of the Dolinar
receiver, and carry out a quite straightforward analysis of its behavior. We
also propose and investigate a suboptimal detection scheme derived from the
Dolinar's architecture, which is shown to slightly outperform some other
near-optimal schemes available in literature.
