Power-Consumption Outage in Beyond Fifth Generation Mobile Communication Systems

Area of Science:

• Engineering
• Computer Science
• Physics

Background:

• High data rates in future mobile systems (beyond 5G) generate significant energy dissipation.
• This energy dissipation leads to heat generation, impacting mobile device performance.
• A novel outage type, termed power-consumption outage, is identified as a critical issue.

Purpose of the Study:

• To define power-consumption outage and its characteristics.
• To analyze the probability of power-consumption outage using heat transfer models.
• To investigate the impact of power-consumption outage on mobile system capacity and performance.

Main Methods:

• Developed a general definition and features of power-consumption outage.
• Utilized a heat transfer model for smartphones to analyze outage probability.
• Derived the joint outage probability considering signal-to-noise ratio (SNR), communication duration, and initial temperature.
• Calculated the upper bound of the maximum receiving rate and analyzed capacity impacts.

Main Results:

• Power-consumption outage probability escalates with increased SNR and extended communication duration.
• The upper bound of the maximum receiving rate for smartphones diminishes with longer communication times.
• Joint outage analysis reveals that outage capacities decrease with rising SNR beyond a threshold.

Conclusions:

• Power-consumption outage is a critical factor limiting performance in high-data-rate mobile systems.
• Device thermal management and communication parameters significantly influence outage probabilities and system capacity.
• Optimizing communication duration and managing SNR are crucial for maintaining performance and receiving rates.