Edutech最新文献_第6页

National roaming as a fallback or default? 全国漫游是后备方案还是默认设置?

Edutech Pub Date : 2023-06-12 DOI: 10.23919/IFIPNetworking57963.2023.10186409

Lotte Weedage, S. R. C. Magalhães, S. Bayhan

{"title":"National roaming as a fallback or default?","authors":"Lotte Weedage, S. R. C. Magalhães, S. Bayhan","doi":"10.23919/IFIPNetworking57963.2023.10186409","DOIUrl":"https://doi.org/10.23919/IFIPNetworking57963.2023.10186409","url":null,"abstract":"Mobile network operators (MNOs) in a country operate independent of each other, although inter-operator collaboration such as national roaming (NR) can offer benefits in terms of resilience, coverage, throughput, and energy efficiency. In some countries, regulations impose realization of national roaming as a fallback strategy, e.g., when an operator cannot offer sufficient coverage while the other can. However, tighter inter-operator collaboration can unlock even more opportunities. In this work, we quantify the benefits in terms of coverage, capacity, and power consumption that can be gained by national roaming as a fallback strategy and as a default strategy wherein all MNOs are operated as a single network. We use public data from national bodies in the Netherlands to study the gains for the Dutch MNOs and investigate the resilience gain also under random failures of base stations, e.g., due to hardware or software errors. Our analysis shows that all MNOs can benefit from a tight cooperation reflected in lower fraction of disconnected population, higher fraction of satisfied population, and lower power consumption for transmission. Despite not offering the same level of benefits, NR as a fallback strategy can also offer gains, in particular for MNOs with less ubiquitous network deployment. Moreover, in comparison to no cooperation, both cooperation approaches provide resilience to isolated failures and result in less severe performance degradation.","PeriodicalId":31737,"journal":{"name":"Edutech","volume":"14 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89846380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Energy-Aware Spreading Factor Selection in LoRaWAN Using Delayed-Feedback Bandits 基于延迟反馈土匪的LoRaWAN能量感知扩展因子选择

Edutech Pub Date : 2023-06-12 DOI: 10.23919/IFIPNetworking57963.2023.10186444

Renzo E. Navas, G. Dandachi, Y. H. Aoul, P. Maillé

{"title":"Energy-Aware Spreading Factor Selection in LoRaWAN Using Delayed-Feedback Bandits","authors":"Renzo E. Navas, G. Dandachi, Y. H. Aoul, P. Maillé","doi":"10.23919/IFIPNetworking57963.2023.10186444","DOIUrl":"https://doi.org/10.23919/IFIPNetworking57963.2023.10186444","url":null,"abstract":"LoRaWAN networks can involve large numbers of wireless devices relying on batteries to sense the environment and send data to gateways. A critical trade-off for transmission performance (packet delivery ratio) versus energy conservation (and hence, the device lifespan) appears when deciding the transmission parameters, in particular, the Spreading Factor (SF) to be used by each node. In this paper, we use lightweight reinforcement learning techniques, namely multi-armed bandits, for each node to select an appropriate SF, based on preferences regarding that trade-off. Unlike previous works on that topic, we relax some assumptions to aim at a realistic implementation: our solution does not assume immediate rewards, or that each device communicates with only one gateway. Additionally, we build explicit MAC commands for the method to work in practice and implement it in the ns-3 simulator using a state-of-the-art LoRaWAN module. We share the source code of our implementation and our simulation results. Those simulations show that when energy conservation is critical for IoT nodes, such lightweight learning algorithms outperform LoRaWAN's legacy Adaptive Data Rate algorithm, both in single- and multi-gateway scenarios.","PeriodicalId":31737,"journal":{"name":"Edutech","volume":"25 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83278337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Galette: a Lightweight XDP Dataplane on your Raspberry Pi Galette:您的树莓派上的轻量级XDP数据平面

Edutech Pub Date : 2023-06-12 DOI: 10.23919/IFIPNetworking57963.2023.10186412

Kyle A. Simpson, Chris Williamson, D. Paul, D. Pezaros

{"title":"Galette: a Lightweight XDP Dataplane on your Raspberry Pi","authors":"Kyle A. Simpson, Chris Williamson, D. Paul, D. Pezaros","doi":"10.23919/IFIPNetworking57963.2023.10186412","DOIUrl":"https://doi.org/10.23919/IFIPNetworking57963.2023.10186412","url":null,"abstract":"IoT and sensor networks are now a critical part of public infrastructure. At the same time, they remain infamous for becoming insecure as new exploits arise. Software dataplanes give us the power to retrofit security functions, and are well-researched in datacentres. Yet the server-grade hardware such frameworks are optimised for is a poor fit for vulnerable low-power, low-space IoT gateways. Single-board computers (SBCs) are a cheaper and better fit on all these metrics, yet no service function chaining (SFC) approaches are tailored to these devices. In addition, modern OS features like XDP give us the capability to minimise power use and provide the lowest latency processing these devices can offer—meaning quicker response to network events, suited to the needs of the network edge. We present Galette, a device-portable SFC framework designed for the inexpensive defence of IoT networks by SBCs. Galette builds on Linux's XDP tooling to provide a CPU-efficient, low latency dataplane. Due to SBC hardware designs, we divide traffic between an XDP fast path and userland to schedule expensive packet analysis without harming normal traffic. Our API makes it easy to write network functions (NFs) that compile to both eBPF and native code, while being portable across heterogeneous SBCs. Testbed evaluations show Galette is more efficient and uses less power than AF_PACKET on Raspberry Pi.","PeriodicalId":31737,"journal":{"name":"Edutech","volume":"148 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86653695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the (dis)Advantages of Programmable NICs for Network Security Services 论可编程网卡在网络安全服务中的优势

Edutech Pub Date : 2023-06-12 DOI: 10.23919/IFIPNetworking57963.2023.10186433

Jack Zhao, M. Neves, I. Haque

{"title":"On the (dis)Advantages of Programmable NICs for Network Security Services","authors":"Jack Zhao, M. Neves, I. Haque","doi":"10.23919/IFIPNetworking57963.2023.10186433","DOIUrl":"https://doi.org/10.23919/IFIPNetworking57963.2023.10186433","url":null,"abstract":"Emerging programmable network interface cards (a.k.a. SmartNICs) are a viable alternative to reduce the gap between network bandwidths, currently at the scale of multi-hundred Gbps, and the server CPU processing capacity. This has rapidly led to many efforts exploring SmartNICs for offloading or accelerating applications that traditionally run solely on servers (e.g., key-value stores, data analytics). Despite the success of this paradigm, the suitability of SmartNICs for running security applications, specially those that heavily rely on cryptographic operations, still remains largely unstudied. In this paper, we aim at filling this gap and provide the first in-depth analysis of current SmartNICs' crypto capabilities. Our experiments with an ARM-based multi-core SmartNIC show that the device depends heavily on architecture enhancements (e.g., cryptographic instructions and hardware accelerators) to meet server performance on crypto-workloads. Moreover, data movements between the SmartNIC and crypto-hardware accelerator cores can introduce significant overhead and make the latter ineffective, particularly for short living tasks. From a service perspective, SmartNICs can take advantage of their privileged position (i.e., closer to client devices than server CPUs) to speed up crypto-based functions. However, the SmartNIC benefits can be easily outweighed if the application is too much data-intensive or includes several noncrypto tasks.","PeriodicalId":31737,"journal":{"name":"Edutech","volume":"1 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74828864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lightweight Network Delay Segmentation Based on Smoothed Hierarchical Clustering 基于平滑分层聚类的轻量级网络延迟分割

Edutech Pub Date : 2023-06-12 DOI: 10.23919/IFIPNetworking57963.2023.10186416

Sanaa Ghandi, Alexandre Reiffers-Masson, Sandrine Vaton, T. Chonavel

引用次数: 0

DMTP: Deadline-aware Multipath Transport Protocol DMTP:截止日期感知多路径传输协议

Edutech Pub Date : 2023-06-12 DOI: 10.23919/IFIPNetworking57963.2023.10186417

Tony John, A. Perrig, D. Hausheer

引用次数: 0

An IoT/IoMT Security Testbed for Anomaly-based Intrusion Detection Systems 基于异常的入侵检测系统的IoT/IoMT安全测试平台

Edutech Pub Date : 2023-06-12 DOI: 10.23919/IFIPNetworking57963.2023.10186428

G. Zachos, G. Mantas, Ismael Essop, Kyriakos Porfyrakis, J. Bastos, Jonathan Rodriguez

{"title":"An IoT/IoMT Security Testbed for Anomaly-based Intrusion Detection Systems","authors":"G. Zachos, G. Mantas, Ismael Essop, Kyriakos Porfyrakis, J. Bastos, Jonathan Rodriguez","doi":"10.23919/IFIPNetworking57963.2023.10186428","DOIUrl":"https://doi.org/10.23919/IFIPNetworking57963.2023.10186428","url":null,"abstract":"Over the past few years, the Internet of Things (IoT) is transforming the healthcare sector through the introduction of the Internet of Medical Things (IoMT) technology whose purpose is the improvement of the patient's quality of life. Nevertheless, I0MT networks are still vulnerable to a wide range of threats because of their heterogeneity and resource-constrained characteristics. Thus, novel security mechanisms such as accurate and efficient intrusion detection systems (IDSs), taking into consideration the inherent limitations of the I0MT networks, are required to be developed before I0MT networks reach their full potential in the market. In our previous works, we presented the system architecture of a novel hybrid anomaly-based IDS (AIDS) for I0MT networks and the implementation of its prototype. The next step is the testing and evaluation of the performance of the proposed AIDS under different types of attacks. However, there is a lack of existing IoT testbeds that can be used to test and evaluate the performance of an AIDS as a whole system running on different IoT devices, networks and platforms, and being under different types of IoT attacks. Therefore, in this paper, we present the development of a functional IoT/IoMT security testbed for testing and evaluating AIDSs. In addition, we intend this work to serve as a guidance for other researchers or engineers who aim to develop specific IoT/IoMT testbeds for evaluating their own AIDSs under different types of IoT attacks.","PeriodicalId":31737,"journal":{"name":"Edutech","volume":"94 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76065492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Game Theoretic Resource Planning and Request Scheduling in Mobile Edge Computing Networks 移动边缘计算网络中的博弈论资源规划与请求调度

Edutech Pub Date : 2023-06-12 DOI: 10.23919/IFIPNetworking57963.2023.10186401

Bin Xiang, J. Elias, F. Martignon, E. D. Nitto, D. Niyato

{"title":"Game Theoretic Resource Planning and Request Scheduling in Mobile Edge Computing Networks","authors":"Bin Xiang, J. Elias, F. Martignon, E. D. Nitto, D. Niyato","doi":"10.23919/IFIPNetworking57963.2023.10186401","DOIUrl":"https://doi.org/10.23919/IFIPNetworking57963.2023.10186401","url":null,"abstract":"Mobile Edge Computing (MEC) networks offer an increasing computing power through the collaboration among MEC nodes. This opens a large computing market and brings challenges for efficient resource management. In this paper, we study the joint optimization problem of planning cost-efficient edge networks, allocating link and computation resources, as well as scheduling and routing user requests in edge computing networks with arbitrary topologies and multiple ingress nodes. We formulate this problem as a Stackelberg game where the network operator, as the leader, aims at maximizing its profit, and the edge nodes, as the followers, minimize their users' costs and latency. Then, we prove the existence of the generalized Nash equilibrium for the follower subgame, and the Stackelberg equilibrium for the leader-follower game. We further propose a distributed best-response algorithm for the follower game and an alternating leader-follower optimization algorithm for the full game to compute the equilibrium and prove its convergence. A centralized optimization incorporating both profit and network latency targets is formulated and solved, which serves as benchmark for the game solution. Extensive numerical results demonstrate the effectiveness of the proposed game, achieving near-optimal planning and scheduling solutions in a very short time even for large-scale edge networks.","PeriodicalId":31737,"journal":{"name":"Edutech","volume":"27 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78210968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

GuRuChain: Guarantee and Reputation-based Blockchain Service Trading Platform GuRuChain:基于担保和信誉的区块链服务交易平台

Edutech Pub Date : 2023-06-12 DOI: 10.23919/IFIPNetworking57963.2023.10186408

Mouhamed Amine Bouchiha, Y. Ghamri-Doudane, Mourad Rabah, R. Champagnat

{"title":"GuRuChain: Guarantee and Reputation-based Blockchain Service Trading Platform","authors":"Mouhamed Amine Bouchiha, Y. Ghamri-Doudane, Mourad Rabah, R. Champagnat","doi":"10.23919/IFIPNetworking57963.2023.10186408","DOIUrl":"https://doi.org/10.23919/IFIPNetworking57963.2023.10186408","url":null,"abstract":"Blockchain (BC) is a promising Distributed Ledger Technology (DLT) that has attracted attention in recent years due to its characteristics of maintaining privacy and security. This technology, which removes the need for a trusted third party, can be applied in various trust-related domains, such as energy trading, crowdsourcing, and the Internet of Things. This paper presents GuRuChain, a platform framework for online service trading. It combines on-chain and off-chain trust management to provide a blockchain system suitable for trust-related applications. The platform does not only ensure the recording of online transactions; but also the deliverance of offline services. In GuRuChain, we propose a mathematical model to assess the trustworthiness of each participant. We also introduce an incentive mechanism based on reputation and guarantee to monitor the participants' behavior. Finally, we maintain the consistency of the BC through the proposed consensus scheme called Proof Guarantee and Reputation (PoGR). PoGR selects nodes based on a scoring formula that uses three parameters, reputation score, guarantee balance, and risk taken to ensure fairness. The results of the performance evaluation demonstrate the feasibility, efficiency, and scalability of GuRuChain.","PeriodicalId":31737,"journal":{"name":"Edutech","volume":"20 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79823162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Overcoming New Technologies Challenges in IoT Security Labs: Strategies for Effective Adaptation 克服物联网安全实验室的新技术挑战:有效适应策略

Edutech Pub Date : 2023-06-12 DOI: 10.23919/IFIPNetworking57963.2023.10186388

Dimitrios Simopoulos, Andreas Wolf

引用次数: 0