Short-Packet Transmission over a Bidirectional Massive MIMO link
Paper i proceeding, 2019

We consider the transmission of short packets over a bidirectional communication link where multiple devices, e.g., sensors and actuators, exchange small-data payloads with a base station equipped with a large antenna array. Using results from finite-blocklength information theory, we characterize the minimum SNR required to achieve a target error probability for a fixed packet length and a fixed payload size. Our nonasymptotic analysis, which applies to the scenario in which the bidirectional communication is device-initiated, and also to the more challenging case when it is base-station initiated, provides guidelines on the design of massive multiple-input multiple-output links that need to support sporadic ultra-reliable low-latency transmissions. Specifically, it allows us to determine the optimal amount of resources that need to be dedicated to the acquisition of channel state information.


Johan Östman

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Alejandro Lancho Serrano

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Giuseppe Durisi

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Conference Record - Asilomar Conference on Signals, Systems and Computers

10586393 (ISSN)

Vol. 2019-November 1399-1403 9048838
9781728143002 (ISBN)

Asilomar Conference on signals, systems, and computers
Pacific Grove, USA,

Teori och praktik för optimal spektral effektivitet i trådlösa ad-hoc nät med strikta krav på latens och tillförlitlighet

Vetenskapsrådet (VR) (2014-2702), 2015-01-01 -- 2019-12-31.

SWIFT : short-packet wireless information theory

Vetenskapsrådet (VR) (2016-03293), 2017-01-01 -- 2020-12-31.


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