Peak-Age Violation Guarantees for the Transmission of Short Packets over Fading Channels

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2019-09-23

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Ostman, Johan
Devassy, Rahul
Durisi, Giuseppe
Uysal, Elif

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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We investigate the probability that the peak age of information in a point-to-point communication system operating over a multiantenna wireless fading channel exceeds a predetermined value. The packets are scheduled according to a last-come first-serve policy with preemption in service, and are transmitted over the channel using a simple automatic repetition request protocol. We consider quadrature phase shift keying modulation, pilot-assisted transmission, maximum-likelihood channel estimation, and mismatched scaled nearest-neighbor decoding. Our analysis, which exploits nonasymptotic tools in information theory, allows one to determine, for a given information packet size, the physical layer parameters such as the SNR, the number of transmit and receive antennas, the amount of frequency diversity to exploit, and the number of pilot symbols, to ensure that the system operates below a target peak-age violation probability.

Subject Keywords

Engineering, Electrical & Electronic, Telecommunications

URI

https://hdl.handle.net/11511/39385

DOI

https://doi.org/10.1109/infcomw.2019.8845098

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Department of Electrical and Electronics Engineering, Conference / Seminar

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Citation Formats

J. Ostman, R. Devassy, G. Durisi, and E. Uysal, “Peak-Age Violation Guarantees for the Transmission of Short Packets over Fading Channels,” 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39385.