Research Article
A Collaborative Cache Strategy in Satellite-Ground Integrated Network Based on Multiaccess Edge Computing
Input: content request tasks that obey Zipf distribution. | Output: content response and caching strategy. | 1: for each requested | 2:/requesting / | 3: if () | 4: executing Algorithm 1 and response to user directly; | 5: else if () | 6: executing Algorithm 1 and response to user via BEN; | 7: else if () | 8: executing Algorithm 1 and response to user via UEN-m; | 9: else if () | 10: executing Algorithm 1 and response to user via IEN; | 11: Else | 12: Requesting from source server; | 13:/caching / | 14: while () | 15: Que.delete (Minimum_Memory_Size ()); | 16: end while | 17: caching in IEN with mini (); | 18: executing Algorithm 1; | 19: caching n in ; | 20: executing Algorithm 1; | 21: end for | 22: for each in IEN | 23: find several most popular content and transmit to BEN and SEN; | 24: end for | 25: broadcast content to CEN via satellite and caching in IEN; | 26: executing Algorithm 1; |
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