Patent ID: 11956307
Assignee: CHONGQING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 7:
8. The distributed task offloading and computing resources management method based on energy harvesting according to claim 1, wherein the device calculates, based on the device maximum benefit problem by using the perturbation Lyapunov optimization algorithm, the optimal task size strategy for performing task offloading by the device to the pre-selected mobile edge computing server based on the Lagrange multiplier algorithm and the KKT condition in each of the time slots, that is, an optimal quotation strategy of a mobile edge computing server for the device in each of the time slots is expressed as:, p
    ji
    *
   
   (
   t
   )
  
  =
  
   
    
     
      C
      2
     
     
      
       ρ
       i
      
      ⁢
      ln
      ⁢
        
      2
     
    
    ⁢
    
     
      b
      ij
      *
     
     (
     t
     )
    
   
   -
   
    2
    ⁢
    
     ψ
     j
    
    ⁢
    
     k
     j
    
    ⁢
    
     b
     ij
     *
    
    ⁢
    
     
      γ
      i
      2
     
     τ
    
   
  
 

where p*ji(t) represents the optimal quotation strategy of the mobile edge computing server for the device in each of the time slots, ρi represents a benefit weight factor of an i-th mobile device, b*ij(t) represents the optimal size of tasks offloaded by the i-th mobile device to the mobile edge computing server in a time slot t, ψj represents unit energy cost of a j-th mobile edge computing server, kj represents an effective energy coefficient related to a chip architecture of the j-th mobile edge computing server, γi represents a computation density obtained by performing offline measurement, and τ represents a length of each of the time slots.