Bespoke

Interference (communication)

MIMO

Biology

Fading

Antenna diversity

Drone

Modulation (music)

Swap (finance)

Quality of service

Telecommunications

Economics

Computer science

Acoustics

Beamforming

Computer network

Genetics

Physics

Link adaptation

Political science

Spectral efficiency

Finance

Channel (broadcasting)

Wireless

Throughput

Spatial modulation

IEEE Wireless Communications

UAVs are envisioned to be an important part of the device-centric IoT. These bespoke Unmanned Aircraft Systems (UASs) that support UAVs significantly differ from traditional terrestrial and aeronautical networks, both of which are evolving toward their next-generation forms. The major challenges of the UAS include augmented interference due to strong LoS, the dynamic shadowing effects owing to 3-D aerial maneuvering, the excessive Doppler shift owing to high UAV mobility, and the SWAP constraints. Against this background, we propose to invoke the recently developed coherent/non-coherent SM and its diversity-oriented counterpart of STBC-ISK. These arrangements employ multiple TAs in order to improve the network's QoS, but they only use a single RF chain. Furthermore, based on the throughput, delay and power-efficiency, we conceive a novel three-fold adaptivity design, where the UAS may adaptively switch between coherent and non-coherent schemes, switch between single- and multiple-TA based arrangements, as well as switch between high-diversity and high-spectral-efficiency multiple-TA based schemes.

Adaptive Coherent/Non-Coherent Spatial Modulation Aided Unmanned Aircraft Systems