Technical Program

Paper Detail

Paper Title Code Design Principles for Ultra-Reliable Random Access with Preassigned Patterns
Paper IdentifierFR1.R8.2
Authors Christopher Boyd, Roope Vehkalahti, Olav Tirkkonen, Aalto University, Finland; Antti Laaksonen, University of Helsinki, Finland
Session Low-density Parity-check II
Location Conseil, Level 5
Session Time Friday, 12 July, 09:50 - 11:10
Presentation Time Friday, 12 July, 10:10 - 10:30
Manuscript  Click here to download the manuscript
Abstract We study medium access control layer random access under the assumption that the receiver can perform successive interference cancellation, without feedback. During recent years, a number of protocols with impressive error performance have been suggested for this channel model. However, the random nature of these protocols causes an error floor which limits their usability when targeting ultra-reliable communications. In very recent works by Paolini et al. and Boyd et. al., it was shown that if each user employs predetermined combinatorial access patterns, this error floor disappears. In this paper, we develop code design criteria for deterministic random access protocols in the ultra-reliability region, and build codes based on these principles. The suggested design methods are supported by simulations.