Ad Hoc Networks. 11th EAI International Conference, ADHOCNETS 2019, Queenstown, New Zealand, November 18–21, 2019, Proceedings

Research Article

Investigating Mobility Robustness in 5G Networks Using User-Adaptive Handoff Strategies

  • @INPROCEEDINGS{10.1007/978-3-030-37262-0_8,
        author={Masoto Chiputa and Peter Chong and Saeed Rehman and Arun Kumar},
        title={Investigating Mobility Robustness in 5G Networks Using User-Adaptive Handoff Strategies},
        proceedings={Ad Hoc Networks. 11th EAI International Conference, ADHOCNETS 2019, Queenstown, New Zealand, November 18--21, 2019, Proceedings},
        proceedings_a={ADHOCNETS},
        year={2020},
        month={1},
        keywords={5G Millimeter wave Performance evaluation Dual Connectivity 3GPP NR Adaptive handoffs},
        doi={10.1007/978-3-030-37262-0_8}
    }
    
  • Masoto Chiputa
    Peter Chong
    Saeed Rehman
    Arun Kumar
    Year: 2020
    Investigating Mobility Robustness in 5G Networks Using User-Adaptive Handoff Strategies
    ADHOCNETS
    Springer
    DOI: 10.1007/978-3-030-37262-0_8
Masoto Chiputa1,*, Peter Chong1,*, Saeed Rehman1,*, Arun Kumar2,*
  • 1: Auckland University of Technology
  • 2: NIT
*Contact email: masoto.chiputa@aut.ac.nz, peter.chong@aut.ac.nz, saeed.rehman@aut.ac.nz, kumararun@nitrkl.ac.in

Abstract

Millimetre Wave (mmWaves) communication is a major capacity booster to the fifth generation (5G) mobile network. However, challenges of significant attenuation and high propagation losses lead to intermittent user connectivity. This limit mmWave applicability in the 5G mobile network. The dual connectivity (DC) architecture with its split control and data plane functionality has proven to be more effective. The DC model uses the less attenuated Long Term evolution (LTE) bands to coordinate mmWave cells while they provide on demand high capacity rates. This guarantees prolonged network association for mmWave links with minimal to no signalling cost at high user data rates. Minimizing signalling cost in LTE bands considering their scarcity is vital too. To that effect, intelligent Handoff (HO) strategies that prolong mmWave link association using minimal signalling cost are vital for a robust DC system. This paper investigates the performances of adaptive HO strategies given a highway multiuser-type mobility scenario on DC systems. Results show that adaptive HO solutions enhance link reliability in mmWaves with minimal signalling cost.