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Evaluating a Case of Downlink Uplink Decoupling Using Queuing System with Random Requirements

Part of the Lecture Notes in Computer Science book series (LNCCN,volume 9870)


The need for efficient resource utilization at the air interfaces in heterogeneous wireless systems has recently led to the concept of downlink and uplink decoupling (DUDe). Several studies have already reported the gains of using DUDe in static traffic conditions. In this paper we investigate performance of DUDe with stochastic session arrivals patterns in LTE environment with macro and micro base stations. Particularly, we use a queuing systems with random resource requirements and to calculate the session blocking probability and throughput of the system. Our results demonstrate that DUDe association approach allows to significantly improve the metrics of interest compared to conventional downlink-based association mechanism.


  • DL and UL decoupling
  • RBs allocation
  • Signal-to-noise ratio
  • LTE-advanced
  • Pathloss
  • Heterogeneous networks

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This work was partially supported by RFBR, projects No. 15-07-03051, 15-07-03608, 16-37-60103, 16-07-00766. The reported study was funded within the Agreement dated 24.11.2016 between the Ministry of Education and Science of the Russian Federation and RUDN University.

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Correspondence to Eduard Sopin .

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Sopin, E., Samouylov, K., Vikhrova, O., Kovalchukov, R., Moltchanov, D., Samuylov, A. (2016). Evaluating a Case of Downlink Uplink Decoupling Using Queuing System with Random Requirements. In: Galinina, O., Balandin, S., Koucheryavy, Y. (eds) Internet of Things, Smart Spaces, and Next Generation Networks and Systems. ruSMART NEW2AN 2016 2016. Lecture Notes in Computer Science(), vol 9870. Springer, Cham.

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  • Print ISBN: 978-3-319-46300-1

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