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Backhaul relaxation through caching

Backhaul relaxation through caching

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In this chapter the idea of content centric mobile wireless networks introduced as a solution to the traffic expansion problem faced by MNOs. We denoted the essential role that in-network caching plays in the transition from our current host centric to the content centric networking paradigm and we presented the metrics required to define the performance of such caching mechanisms. A comprehensive study on the content placement problem in the heterogeneous cellular networks has been presented while some of the most promising methods has been described in detail. The content placement problem is investigated from different objectives. QoS, backhaul relaxation through caching and energy consumption were the main aspects that we aimed to address in this chapter. These principles has been mainly investigated for the case of video content delivery due to its prominent role in the future mobile wireless traffic.

Chapter Contents:

  • 15.1 Background on content caching
  • 15.2 Caching in 5G wireless systems
  • 15.2.1 Caching in 5G HetNets
  • 15.2.2 QoE-aware caching & 5G HetNet configuration
  • 15.2.2.1 Problem formulation and solution
  • 15.2.3 Caching in D2D 5G systems
  • 15.3 Energy efficiency and caching in 5G systems
  • 15.3.1 SER
  • 15.3.2 PCONT
  • 15.3.3 PREL
  • 15.4 Summary
  • References

Inspec keywords: Internet; telecommunication traffic; cellular radio; quality of service

Other keywords: QoS; MNO; heterogeneous cellular network; energy consumption; content placement problem; backhaul relaxation; mobile wireless traffic; content centric mobile wireless network; traffic expansion problem; in-network caching mechanism; video content delivery

Subjects: Mobile radio systems; Other computer networks

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