LWA in 5G: State-of-the-Art Architecture, Opportunities, and Research Challenges

Bajracharya, Rojeena; Shrestha, Rakesh; Ali, Rashid; Musaddiq, Arslan; Kim, Sung Won

doi:10.1109/mcom.2018.1701177

Cited by 42 publications

(25 citation statements)

References 7 publications

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“…The connection in IIoT networks supposed to be with zero latency and has an unlimited throughput [25]. Many communication technologies can be utilized in IIoT including RFID [26], Near-field communication (NFC) [27], Bluetooth [28], Long-Term Evolution (LTE), and 5G Wi-Fi [29]. E1.4.…”

Section: E13 Seamless and Real-time Communication: A Seamless Commumentioning

confidence: 99%

Mapping Industry 4.0 Enabling Technologies into United Nations Sustainability Development Goals

et al. 2021

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The emerging of the fourth industrial revolution, also known as Industry 4.0 (I4.0), from the advancement in several technologies is viewed not only to promote economic growth, but also to enable a greener future. The 2030 Agenda of the United Nations for sustainable development sets out clear goals for the industry to foster the economy, while preserving social well-being and ecological validity. However, the influence of I4.0 technologies on the achievement of the Sustainable Development Goals (SDG) has not been conclusively or systematically investigated. By understanding the link between the I4.0 technologies and the SDGs, researchers can better support policymakers to consider the technological advancement in updating and harmonizing policies and strategies in different sectors (i.e., education, industry, and governmental) with the SDGs. To address this gap, academic experts in this paper have investigated the influence of I4.0 technologies on the sustainability targets identified by the UN. Key I4.0 element technologies have been classified to enable a quantitative mapping with the 17 SDGs. The results indicate that the majority of the I4.0 technologies can contribute positively to achieving the UN agenda. It was also found that the effects of the technologies on individual goals varies between direct and strong, and indirect and weak influences. The main insights and lessons learned from the mapping are provided to support future policy.

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Section: E13 Seamless and Real-time Communication: A Seamless Commumentioning

confidence: 99%

Mapping Industry 4.0 Enabling Technologies into United Nations Sustainability Development Goals

et al. 2021

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“…Soon, the telecom companies and the automotive industry approved LTE-V for vehicle connectivity based on LTE-A. There is some research on using unlicensed bands in 5G networks via LTE and WLAN aggregation in order to alleviate spectrum scarcity [11,12]. Several vehicles use an on-board system to connect to the cellular network for telematics, GPS systems, infotainment, fleet management, etc.…”

Section: Cellular V2xmentioning

confidence: 99%

Evolution of V2X Communication and Integration of Blockchain for Security Enhancements

et al. 2020

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With the rapid evolution in wireless communications and autonomous vehicles, intelligent and autonomous vehicles will be launched soon. Vehicle to Everything (V2X) communications provides driving safety, traffic efficiency, and road information in real-time in vehicular networks. V2X has evolved by integrating cellular 5G and New Radio (NR) access technology in V2X communications (i.e., 5G NR V2X); it can fulfill the ever-evolving vehicular application, communication, and service demands of connected vehicles, such as ultra-low latency, ultra-high bandwidth, ultra-high reliability, and security. However, with the increasing number of intelligent and autonomous vehicles and their safety requirements, there is a backlash in deployment and management because of scalability, poor security and less flexibility. Multi-access Edge Computing (MEC) plays a significant role in bringing cloud services closer to vehicular nodes, which reduces the scalability and flexibility issues. In addition, blockchain has evolved as an effective technology enabler to solve several security, privacy, and networking issues faced by the current 5G-based MEC systems in vehicular networks. Blockchain can be integrated as a strong security mechanism for securing and managing 5G V2X along with MEC. In this survey, we discuss, in detail, state-of-the-art V2X, its evolution based on cellular 5G technology and non-cellular 802.11bd. We investigate the integration of blockchain in 5G-based MEC vehicular networks for security, privacy protection, and content caching. We present the issues and challenges in existing edge computing and 5G V2X and, then, we shed some light on future research directions in these integrated and emerging technologies.

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“…To keep pace with this, the interconnection of wireless local area networks (WLANs) and cellular networks (e.g. mobile traffic offloading through WLANs, LTE WLAN aggregation (LWA)) can improve the capacity and enhance the overall performance of the network [5].…”

Section: Introductionmentioning

confidence: 99%

“…IEEE 802.11 Networks becomes the favored supplementary offloading networks due to its advantages: ease of deploying, higher data rates, cost-effective, unlicensed spectrum, convenient because of most cellular network users has equipment contains both of 802.11 and cellular modules which mean that there is no need to upgrade the user equipment (UE). LWA has evolved as a promising technology to improve the network capacity and quality of service (QoS) as a step toward 5G networks [5]; it can utilize both WLAN and LTE spectrums at the same time and combined between the advantages of LTE and WLAN access technology [11].…”

Section: Introductionmentioning

confidence: 99%

An Adaptive EDCA Selfishness-Aware Scheme for Dense WLANs in 5G Networks

et al. 2020

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To keep pace with the current rapid evolution of mobile data requirements, IEEE 802.11 was evolved to provide more desirable performance to fulfill the needs of fifth-generation (5G) and Internet of Things (IoT) networks. It provides two different access contention-based schemes; Distributed Coordination Function (DCF) which not differentiates between different services, and Enhanced Distributed Channel Access (EDCA) which provides differentiation between various services through four priority Access Categories (ACs). The dilemma of the conventional IEEE 802.11 networks is the static assignation of parameters in DCF and EDCA regardless of the number of associated stations and no matter what kind of service is required by each station (i.e., the activity of ACs). Consequently, this led to a significant degradation in the performance of the network, especially in the case of ultra-dense load network. Therefore, in this paper, we introduce a novel algorithm for EDCA considering a dynamic assignation of Arbitration Inter-Frame Space Number (AIFSN) and guidance Contention Window (CW) depending on the number of associated stations and ACs activeness status. Based on the analytical models of EDCA, a game-theoretic method is proposed to make each associated station adapts its transmission probability within the guidance CW. The purpose of guidance CW is a pre-stage to detect the selfish stations which pick up a very low CW to maximize its throughput regardless of the overall network throughput. Simulation results show that the proposed game-based algorithm can obtain higher performance than the standard 802.11 networks in terms of normalized throughput, data dropped during retransmissions limit threshold exceeding, and mean average delay for sensitive delay applications. INDEX TERMS EDCA, high density WLANs, multiple access, selfish nodes, 5G.

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LWA in 5G: State-of-the-Art Architecture, Opportunities, and Research Challenges

Cited by 42 publications

References 7 publications

Mapping Industry 4.0 Enabling Technologies into United Nations Sustainability Development Goals

Mapping Industry 4.0 Enabling Technologies into United Nations Sustainability Development Goals

Evolution of V2X Communication and Integration of Blockchain for Security Enhancements

An Adaptive EDCA Selfishness-Aware Scheme for Dense WLANs in 5G Networks

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