Modeling and Analysis of Multi-RAT Dual Connectivity Operations in 5G Networks

Ramaswamy, Venkatesh; Correia, Jeffrey T.; Swain-Walsh, Darcy

doi:10.1109/5gwf.2019.8911684

Cited by 11 publications

(6 citation statements)

References 4 publications

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“…Hence the corresponding PDU interarrival time over the MEO and GEO links is represented as P M λ M and P G λ G respectively. The average delay of the hybrid PDUs at HGS is expressed as stated in (3) below [13], with d Gi and d Mi representing delay on the GEO and MEO links respectively, for the i th block of PDUs.…”

Section: Problem Analysismentioning

confidence: 99%

Uplink Capacity Optimization for High Throughput Satellites using SDN and Multi-Orbital Dual Connectivity

Dazhi

Al-Hraishawi

Shankar

et al. 2022

2022 IEEE International Conference on Communications Workshops (ICC Workshops)

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Dual Connectivity is a key approach to achieving optimization of throughput and latency in heterogeneous networks. Originally a technique introduced by the 3rd Generation Partnership Project (3GPP) for terrestrial communications, it is not been widely explored in satellite systems. In this paper, Dual Connectivity is implemented in a multi-orbital satellite network, where a network model is developed by employing the diversity gains from Dual Connectivity and Carrier Aggregation for the enhancement of satellite uplink capacity. An introduction of software defined network controller is performed at the network layer coupled with a carefully designed hybrid resource allocation algorithm which is implemented strategically. The algorithm performs optimum dynamic flow control and traffic steering by considering the availability of resources and the channel propagation information of the orbital links to arrive at a resource allocation pattern suitable in enhancing uplink system performance. Simulation results are shown to evaluate the achievable gains in throughput and latency; in addition we provide useful insight in the design of multi-orbital satellite networks with implementable scheduler design.

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Section: Problem Analysismentioning

confidence: 99%

Uplink Capacity Optimization for High Throughput Satellites using SDN and Multi-Orbital Dual Connectivity

Dazhi

Al-Hraishawi

Shankar

et al. 2022

2022 IEEE International Conference on Communications Workshops (ICC Workshops)

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“…Instead, the paradigm studied in this paper regards the co-location of multiple cellular standards into single radio items, a trend pursued by the industry [2] and also studied in academia [4]. The topic received substantially more consideration with the advent of 5G [9]- [11] with particular attention to dual connectivity, given that the feature has been included in the 3GPP 5G standard [12], [13]. Concurrent connectivity to multiple cellular RATs presents its set of issues; for instance, [14] addresses the problems of joint M-RAT assignments and dynamic power allocation, while [15] approaches the feature probabilistically by studying how mobile equipment may decide to access either multiple RATs or a single one.…”

Section: Related Work and Data Sourcesmentioning

confidence: 99%

The Energy Footprint of 5G Multi-RAT Cellular Architectures

2021

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While environmental and financial reasons point to the minimization of the number of radio sites to contain energy use, emissions, and operating expenses of cellular networks, the industry has, in retrospect, partly headed in the opposite direction. The reasons are the deployment of new technologies alongside the existing ones, the use of higher frequencies, and the expansion of radio coverage. In some cases, the issue has been addressed by replacing legacy access sites with Multi-RAT infrastructures, composed of individual radio elements that run multiple technologies concurrently. Now, the transition to 5G poses additional challenges. This paper reviews Multi-RAT architectures, outlines their benefits, discusses how 5G can be integrated, and provides guidance in terms of architectural recommendations, all from an energy consumption standpoint. Specifically, we firstly summarize the transition of monolithic base stations into modern radio elements, exposing the energy rationale and discussing the impact of each main network component. From this basis, we survey different deployment strategies and evaluate their energy implications in light of the constraints and opportunities given by the 5G New Radio standard, its flagship applications, and its transport requirements. Then, we lay down energy-saving estimates quantifying the contribution of each main network segment, revealing the most promising architectures, and identifying the main challenges and the research directions ahead.

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“…In addition, quality of experience (QoE)-aware MPTCP has been proposed to improve the performance of software-defined network (SDN)-based 5G network for multimedia traffic 27 and the testbed of fixed-mobile convergence (FMC) has been shown for ATSSS with an MPTCP-capable UE and MPTCP-capable hybrid access gateway between fixed broadband (FBB) and mobile broadband (MBB). 28 The simple modeling has been proposed in LTE-NR DC 29 which focuses on latency expectation for traffic steering. However, related proposals are based on an overlay model between a client and a server without integrating MPTCP with the 5GC, although they utilize both 5G NR and LTE/WiFi technologies to improve the communication performance.…”

Section: Background and Related Workmentioning

confidence: 99%

Multipath transmission control protocol–based multi-access traffic steering solution for 5G multimedia-centric network: Design and testbed system implementation

Kang

Kim

et al. 2020

International Journal of Distributed Sensor Networks

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Various technologies have been developed for the efficient use of the multiple radio access technologies resource at the radio access network level or other network levels to improve user service quality in mobile communication networks. In long-term evolution, mobile carriers are commercializing radio access network-level traffic aggregation technologies such as licensed-assisted access-long-term evolution, long-term evolution-unlicensed, and long-term evolution-wireless local area network aggregation, which use the multi-accesses of the 3rd Generation Partnership Project and WiFi, and the multipath transmission control protocol–based traffic aggregation technologies at the L3 network level. The standardization of 3rd Generation Partnership Project Release 16, which is scheduled to be completed by 2020, is under progress to support the traffic aggregation technology at the L3 network level through a multi-access 5G network. Multipath transmission control protocol is also considered as a traffic aggregation technology. However, it is difficult to apply the multipath transmission control protocol employment model used in long-term evolution to the 5G network structure as it is due to the change to a common core architecture that accommodates multiple radio access technologies through one common interface. Therefore, this article proposes an optimal 5G system architecture and a multipath transmission control protocol adaptation method to support the access traffic steering function based on multipath transmission control protocol in a 3rd Generation Partnership Project 5G mobile communication network. We have verified the development of the multipath transmission control protocol–based multi-access traffic steering technology by implementing the proposed solution in a commercial server on a testbed based on the 5G system standard of 3rd Generation Partnership Project Release 15. Furthermore, this article defines problems that occur when implementing the multipath transmission control protocol–based multi-access traffic steering system and proposes relevant solutions. Based on the implementation results, it is demonstrated that the proposed multipath transmission control protocol–based multi-access traffic steering system can perform traffic steering in the 3rd Generation Partnership Project 5G network.

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Modeling and Analysis of Multi-RAT Dual Connectivity Operations in 5G Networks

Cited by 11 publications

References 4 publications

Uplink Capacity Optimization for High Throughput Satellites using SDN and Multi-Orbital Dual Connectivity

Uplink Capacity Optimization for High Throughput Satellites using SDN and Multi-Orbital Dual Connectivity

The Energy Footprint of 5G Multi-RAT Cellular Architectures

Multipath transmission control protocol–based multi-access traffic steering solution for 5G multimedia-centric network: Design and testbed system implementation

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