Telecommunications Science ›› 2015, Vol. 31 ›› Issue (5): 71-81.doi: 10.11959/j.issn.1000-0801.2015129

• research and development • Previous Articles     Next Articles

Virtural Realtime Services:Infrastructure,Algorithms and Evolution Path

Wei Chen   

  1. Department of Electronic Engineering,Tsinghua University,Beijing 100084,China
  • Online:2015-05-15 Published:2015-08-20
  • Supported by:
    National Basic Research Program of China(973 Program);National Natural Science Foundation of China,Excellent Young Investigator Award

Abstract:

A virtual rea1-time service infrastructure for future wireless access,which is capable of efficiently using the idle timeslots or renewable energy distributed in the“negative time-axis”before users’ transmission requests was proposed. By using these idle timeslots,the information content in which users might be interested can be pushed to the end devices’ buffers in a multicasting manner before a user requests the content. The end devices’ algorithm which determines which content should be buffered was standardized. Hence,the base-station may locally predict what have been buffered in the users’ devices,and determine whether it should push and which content to transmit. Meanwhile,a number of key algorithms for virtual rea1-time service were proposed and analyzed,an evolution path toward virtual rea1-time service along with its major problems was also presented. Chen’s program was proposed to guide the development of the virtual rea1-time service related emerging industry and technologies.

Key words: virtual rea1-time service, multi-unit collaborative communication, transparent multicast push, cognitive spectrum reuse, energy harvesting, spectral efficiency, energy efficiency

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