Novel M-CORD Based Multi-Functional Split Enabled Virtualized Cloud RAN Testbed with Ideal Fronthaul

Saha, Rony Kumer; Tsukamoto, Yu; Nanba, Shinobu; Nishimura, Kosuke; Yamazaki, Kosuke

doi:10.1109/glocomw.2018.8644390

Cited by 8 publications

(17 citation statements)

References 9 publications

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“…This paper is an extended version of the works [16][17] originally presented partly in 2018 IEEE 29 th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), Bologna, Italy, 9-12, Sep. 2018 [16] and in 2018 IEEE Globecom'18 Workshop on Cloudified Architectures for 5G and beyond Systems, Abu Dhabi, 9-13 Dec. 2018 [17]. Both conference articles [16][17] have been used as the basis of this new journal version, which differs mainly from [16][17] in terms of enhancement of background material, expansion of discussion, and inclusion of new problems and results. More specifically, section 3 is based on [16], sections 4-6 are based on [17], and the remaining sections are newly included.…”

Section: Declarationmentioning

confidence: 99%

“…Both conference articles [16][17] have been used as the basis of this new journal version, which differs mainly from [16][17] in terms of enhancement of background material, expansion of discussion, and inclusion of new problems and results. More specifically, section 3 is based on [16], sections 4-6 are based on [17], and the remaining sections are newly included. Conference materials used in terms of texts are rewritten whenever necessary, and several figures are reused almost with no modification but citation.…”

Section: Declarationmentioning

confidence: 99%

“…Conference materials used in terms of texts are rewritten whenever necessary, and several figures are reused almost with no modification but citation. Finally, this paper is written as such that readers will find it self-contained, detailed, and more insightful in contrast to its conference versions [16][17].…”

Section: Declarationmentioning

confidence: 99%

“…The delay emulator is connected between points a and b when it is common to both vBBUs, and between points c and when it is present for a single vBBU, i.e. vBBU1 [17].…”

Section: Experimental Configuration Evaluation Scenario and Physicalmentioning

confidence: 99%

“…This is due to system-specific implementation issues concerning mainly how the MAC scheduler is designed, described in the following. [17].…”

Section: Maximum Transmit Bandwidth For Tcp and Udp Trafficmentioning

confidence: 99%

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Enabling Technology and Proof-of-Concept Evaluation for RAN Architectural Migration toward 5G and Beyond Mobile Systems

Saha¹,

Yamazaki²

2019

Self Cite

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In this paper, we address two major issues regarding architectural migration of radio access network (RAN). Firstly, an overview and explicit interpretation of how different enabling technologies over generations are brought up and coordinated for migration from a distributed, to a centralized, and then to a virtualized RAN for 5G and beyond cellular; and secondly, the proof-of-concept (PoC) evaluation to understand the feasibility of these enabling technologies, are addressed. In doing so, we first give an overview of major enabling technologies and discuss their impact on RAN migration. We then evaluate the PoC of major enabling technologies proposed mainly for 5G CRAN, namely functional split options, TDM-PON systems, and virtualization techniques using a mobile CORD based prototype in LTE systems with ideal fronthauls. PoC experimental results with split options 2 and 5 are presented and compared using TCP and UDP traffic. Experimentally, it is shown that the throughput improvement is significant for TCP as compared to UDP with virtualized BBUs, which are about 30%-40% and 40%-45% higher in mean throughputs respectively in downlink and uplink with split 5 than that with split 2. Finally, we point out the major experimental limitations of PoC and future research directions.

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Section: Declarationmentioning

confidence: 99%

Section: Declarationmentioning

confidence: 99%

Section: Declarationmentioning

confidence: 99%

“…The delay emulator is connected between points a and b when it is common to both vBBUs, and between points c and when it is present for a single vBBU, i.e. vBBU1 [17].…”

Section: Experimental Configuration Evaluation Scenario and Physicalmentioning

confidence: 99%

“…This is due to system-specific implementation issues concerning mainly how the MAC scheduler is designed, described in the following. [17].…”

Section: Maximum Transmit Bandwidth For Tcp and Udp Trafficmentioning

confidence: 99%

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Enabling Technology and Proof-of-Concept Evaluation for RAN Architectural Migration toward 5G and Beyond Mobile Systems

Saha¹,

Yamazaki²

2019

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Role of M-CORD Computing Architecture for Over the Top (OTT) Services and Applications

Kumar

Vincent

Srinivasan

et al. 2021

Learning and Analytics in Intelligent Systems

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Experimental Evaluation of RAN Slicing Architecture With Flexibly Located Functional Components of Base Station According to Diverse 5G Services

et al. 2019

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The future 5th generation (5G) mobile communication system will be required to support diverse services. Because of the difficulty in addressing the requirements of all these services using the same physical network, ''network slicing,'' which provides a customized logical network corresponding to service requirements, has recently attracted a great deal of attention. In the radio access network (RAN), the appropriate locations of base station functionalities to meet service requirements and achieve efficient network operation differ according to service type. Therefore, we have proposed a novel RAN slicing architecture, which has logical networks (slices) that choose an appropriate functional split option and its placement, to adjust to providing any service. This architecture achieves high flexibility and large scalability by employing a software-defined network and network function virtualization. A prototype is then developed based on the proposed architecture employing a unified controller of open-source software. It can construct slices for three service types: enhanced mobile broadband, ultra-reliable and low-latency communication, and massive machine-type communication, with flexibly located functionalities. In this paper, an experimental evaluation, considering the points of bandwidth consumption in midhaul, the impact of midhaul delay, communication latency, and isolation among slices, shows that the slices have specific performance benefits for each service type and also to achieve efficient network operation. This suggests that the proposed architecture is able to construct slices in a single infrastructure with different features according to the services required and to accommodate various services efficiently. INDEX TERMS 5G mobile communication, software-defined network, network function virtualization RAN slicing, functional splits. I. INTRODUCTION A. GENERAL BACKGROUND Recently, research and development have been actively pursued in the future 5th generation (5G) mobile network. 5G is expected to support diverse services such as highdefinition video distribution, autonomous driving, remotecontrolled robots and the Internet of Things (IoT) [1], and the services are classified roughly into three types; enhanced mobile broadband (eMBB), ultra-reliable and lowlatency communication (URLLC), and massive machine-type communication (mMTC) [2]. The associate editor coordinating the review of this manuscript and approving it for publication was Xiaodong Xu.

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Novel M-CORD Based Multi-Functional Split Enabled Virtualized Cloud RAN Testbed with Ideal Fronthaul

Cited by 8 publications

References 9 publications

Enabling Technology and Proof-of-Concept Evaluation for RAN Architectural Migration toward 5G and Beyond Mobile Systems

Enabling Technology and Proof-of-Concept Evaluation for RAN Architectural Migration toward 5G and Beyond Mobile Systems

Role of M-CORD Computing Architecture for Over the Top (OTT) Services and Applications

Experimental Evaluation of RAN Slicing Architecture With Flexibly Located Functional Components of Base Station According to Diverse 5G Services

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