Dynamic set planning for coordinated multi-point in b4g/5g networks

Jia Ming Liang, Ching Kuo Hsu, Jen-Jee Chen*, Po Han Lin, Po Min Hsu, Tzung Shi Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Coordinated Multi-Point (CoMP) is an important technique in B4G/5G networks. With CoMP, multiple base stations can be clustered to compose a cooperating set to improve system throughput, especially for the users in cell edges. Existed studies have discussed how to mitigate overloading scenarios and enhance system throughput with CoMP statically. However, static cooperation fixes the set size and neglects the fast-changing of B4G/5G networks. Thus, this paper pro-vides a full study of off-peak hours and overloading scenarios. During off-peak hours, we propose to reduce BSs’ transmission power and use the free radio resource to save energy while guaranteeing users’ QoS. In addition, if large-scale activities happen with crowds gathering or in peak hours, we dynamically compose the cooperating set based on instant traffic requests to adjust base stations’ BSs’ transmission power; thus, the system will efficiently offload the traffic to the member cells which have available radio resources in the cooperating set. Experimental results show that the proposed schemes enhance system throughput, radio resource utilization, and energy efficiency, compared to other existing schemes.

Original languageEnglish
Article number1752
Pages (from-to)1-20
Number of pages20
JournalSensors
Volume21
Issue number5
DOIs
StatePublished - 1 Mar 2021

Keywords

  • Beyond fourth-generation/fifth-generation (B4G/5G)
  • Cooperating set
  • Coordinated multi-point (CoMP)
  • Dynamic cell selection (DCS)
  • Energy efficiency
  • Resource allocation
  • Soft frequency reuse (SFR)

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