Proactive Resilient Transmission and Scheduling Mechanisms for mmWave Networks
This work addresses network resilience for mmWave communication systems, presenting an incremental improvement through hybrid methods.
The paper tackles the problem of network disruptions in millimeter-wave networks by developing proactive transmission mechanisms and a hybrid scheduling algorithm, achieving a high end-to-end packet rate with robust adaptation to link failures across various topologies.
This paper aims to develop resilient transmission mechanisms to suitably distribute traffic across multiple paths in an arbitrary millimeter-wave (mmWave) network. The main contributions include: (a) the development of proactive transmission mechanisms that build resilience against network disruptions in advance, while achieving a high end-to-end packet rate; (b) the design of a heuristic path selection algorithm that efficiently selects (in polynomial time in the network size) multiple proactively resilient paths with high packet rates; and (c) the development of a hybrid scheduling algorithm that combines the proposed path selection algorithm with a deep reinforcement learning (DRL) based online approach for decentralized adaptation to blocked links and failed paths. To achieve resilience to link failures, a state-of-the-art Soft Actor-Critic DRL algorithm, which adapts the information flow through the network, is investigated. The proposed scheduling algorithm robustly adapts to link failures over different topologies, channel and blockage realizations while offering a superior performance to alternative algorithms.