Multi-level Design for Multiple-Symbol Non-Coherent Unitary Constellations for Massive SIMO Systems

This paper investigates non-coherent detection of single-input multiple-output (SIMO) systems over block Rayleigh fading channels. Using the Kullback-Leibler divergence as design criterion, we formulate a multiple-symbol constellation optimization problem, which turns out to have high computational complexity construct and detect. We exploit structure formulated problem decouple it into unitary multi-level design. The proposed has low in both construction detection. Simulation results show that our better performance than traditional pilot-based schemes other existing low-complexity designs.