Mobile Edge Caching: An Optimal

Xuanyu Cao, ‡Junshan Zhang, and †H. Vincent Poor
†Email: {x.cao, poor}@princeton.edu
Department of Electrical Engineering, Princeton University, Princeton, NJ
‡Email: junshan.zhang@asu.edu
School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ

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System Model

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-Incentive mechanism

1.valuation:

• is called the type of user j and depends on factors such as the user's demand of contents and economic conditions
• is only known by user and is unknown to the SP and other users
• is a variable over the interval Tj with probability density function(pdf) and cumulative distribution