Lyapunov Optimization Framework for 5G Mobile Nodes With Multi-Homing

• Published in: IEEE communications letters Vol. 20; no. 5; pp. 1026 - 1029
• Main Authors: Shuminoski, Tomislav, Janevski, Toni
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.05.2016; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: 5G mobile communication; Lyapunov optimization; Mobile communications networks; Mobile computing; mobile network aggregation; multi-homing; Optimization; Program processors; Quality of service; Quality of Service (QoS); Queuing theory; Stability analysis; Quality of Service (QoS); Lyapunov optimization; mobile network aggregation; 5G; multi-homing
• ISSN: 1089-7798; 1558-2558
• DOI: 10.1109/LCOMM.2016.2540622

The letter presents a novel framework for 5G nodes with vertical multi-homing capabilities by using radio access technology aggregation on the network protocol layer and using Lyapunov optimization. The proposed 5G node framework leads to high performance utility networks with QoS provisioning for any given service, high average throughput, and multi-RAT capabilities (part of 5G trends), while at the same time achieving stochastic queuing network stability. The proposed framework uses the Lyapunov drift-plus-penalty theorem, which provides a methodology for designing an algorithm to maximize the average throughput and stabilize the queuing. The proposed algorithm, implemented within the mobile nodes and proxy node on the mobile network side, is able to handle simultaneously multiple multimedia flows via multiple wireless and mobile interfaces. The performance of the proposed framework for 5G nodes is evaluated with simulation and analytical results. The results show that the given framework achieves maximal aggregated throughput subject to average power constraints on the node interfaces, and at the same time minimizes average queue backlogs subject to minimal network delay.