On the effective energy efficiency of ultra-reliable networks in the finite blocklength regime

Effective Capacity (EC) indicates the maximum communication rate subject to a certain delay constraint while effective energy efficiency (EEE) denotes the ratio between EC and power consumption. In this paper, we analyze the EEE of ultra-reliable networks operating in the finite blocklength regime....

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Bibliographic Details
Published inInternational Symposium on Wireless Communication Systems pp. 275 - 280
Main Authors Shehab, Mohammad, Dosti, Endrit, Alves, Hirley, Latva-aho, Matti
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2017
Subjects
Delays
Fading channels
Machine-to-machine communications
Mathematical model
Power demand
Resource management
Signal to noise ratio
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ISSN2154-0225
DOI10.1109/ISWCS.2017.8108124

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Summary:Effective Capacity (EC) indicates the maximum communication rate subject to a certain delay constraint while effective energy efficiency (EEE) denotes the ratio between EC and power consumption. In this paper, we analyze the EEE of ultra-reliable networks operating in the finite blocklength regime. We obtain a closed form approximation for the EEE in Rayleigh block fading channels as a function of power, error probability, and delay. We show the optimum power allocation strategy for maximizing the EEE in finite blocklength transmission which reveals that Shannon's model underestimates the optimum power when compared to the exact finite blocklength model. Further-more, we characterize the buffer constrained EEE maximization problem for different power consumption models. The results show that accounting for empty buffer probability (EBP) and extending the maximum delay tolerance jointly enhance the EC and EEE.
ISSN:2154-0225
DOI:10.1109/ISWCS.2017.8108124