Details

Autor(en) / Beteiligte

• Abraham, Jens
• Ekman, Torbjorn

Titel

Local Diversity and Ultra-Reliable Antenna Arrays

Ist Teil von

• 2021 55th Asilomar Conference on Signals, Systems, and Computers, 2021, p.1215-1221

Ort / Verlag

IEEE

Erscheinungsjahr

2021

Link zum Volltext

• IEEE_Xplore

Quelle

IEEE Xplore

Beschreibungen/Notizen

• Ultra-reliable low-latency communication enables new use cases for mobile radio networks. The ultra-reliability (UR) regime covers outage probabilities between 10 −9 and 10 −5 , obtained under stringent latency requirements. Characterisation of the UR-relevant statistics is difficult due to the rare nature of outage events, but diversity defines the asymptotic behaviour of the small-scale fading distributions' lower tail. The UR-relevant regime in large-scale antenna systems behaves differently from the tail. We present the generalising local diversity at a certain outage probability to show this difference clearly. For more than four independent antenna elements, the classic diversity overestimates and underestimates the slope of the cumulative density function for weak and strong deterministic channel components, respectively.