区块链安全低延迟无线网络中可靠网络切片的约束深度强化学习优化
A Constrained Deep Reinforcement Learning Optimization for Reliable Network Slicing in a Blockchain-Secured Low-Latency Wireless Network
AI总结：
针对区块链安全低延迟无线网络中的网络切片，提出一种约束深度强化学习优化框架，在满足基站拒绝服务概率约束下最小化处理延迟，实现可靠低延迟服务提供。
摘要：
网络切片（NS）是一种有前景的技术，可支持下一代低延迟无线通信网络的多样化需求。然而，篡改攻击正成为危及NS服务提供的新兴问题。为了抵抗NS网络中的篡改攻击，我们提出了一种新颖的优化框架，用于在区块链安全的低延迟无线网络中进行可靠的NS资源分配，其中具有高声誉的可信基站（BS）被选用于区块链管理和NS服务提供。对于这种区块链安全的网络，我们考虑延迟由区块链管理和NS服务提供的总和来衡量，而NS可靠性则通过BS拒绝服务（DoS）概率来评估。为了满足延迟和可靠性的要求，我们构建了一个受约束的计算资源分配优化问题，以在BS DoS概率约束下最小化总处理延迟。为了高效求解该优化问题，我们设计了一种约束深度强化学习（DRL）算法，通过引入额外的评论家神经网络来同时满足延迟和DoS概率要求。所提出的约束DRL还通过结合特征工程技术解决了高输入维度的问题。仿真结果验证了我们的方法在所考虑的区块链安全无线网络中实现可靠且低延迟NS服务提供的有效性。
英文摘要：
Network slicing (NS) is a promising technology that supports diverse requirements for next-generation low-latency wireless communication networks. However, the tampering attack is a rising issue of jeopardizing NS service-provisioning. To resist tampering attacks in NS networks, we propose a novel optimization framework for reliable NS resource allocation in a blockchain-secured low-latency wireless network, where trusted base stations (BSs) with high reputations are selected for blockchain management and NS service-provisioning. For such a blockchain-secured network, we consider that the latency is measured by the summation of blockchain management and NS service-provisioning, whilst the NS reliability is evaluated by the BS denial-of-service (DoS) probability. To satisfy the requirements of both the latency and reliability, we formulate a constrained computing resource allocation optimization problem to minimize the total processing latency subject to the BS DoS probability. To efficiently solve the optimization, we design a constrained deep reinforcement learning (DRL) algorithm, which satisfies both latency and DoS probability requirements by introducing an additional critic neural network. The proposed constrained DRL further solves the issue of high input dimension by incorporating feature engineering technology. Simulation results validate the effectiveness of our approach in achieving reliable and low-latency NS service-provisioning in the considered blockchain-secured wireless network.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
