ABSORB: Autonomous base station with optical reflex backhaul to adapt to fluctuating demand

Nakayama, Yu; Tsutsumi, Takuya; Maruta, Kazuki; Sezaki, Kaoru

doi:10.1109/infocom.2017.8056970

Cited by 23 publications

(5 citation statements)

References 10 publications

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“…Since mobile traffic demand fluctuates in time and generates hotspots, dynamic small cell deployment is effective for dealing with such fluctuating demand. The proposed idea is a deployment scenario for the adaptive network architecture introduced in [7]. Also, the latency in a wireless fronthaul link which is the major constraint for mobile fronthaul was investigated in [12].…”

Section: Discussionmentioning

confidence: 99%

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Small Cells Enabled by Crowdsourced Radio Units Mounted on Parked Vehicles for Smart City

et al. 2020

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A large number of small cells are densely deployed in the era of 5G and beyond 5G mobile networks to achieve high rate and low latency data transmission. Small cells are composed with fixed ground radio units (RUs) in the conventional networks, and thus the utilization rate of them is drastically deteriorated due to the spatio-temporal patterns of mobile traffic demand. To address this problem, adaptive network architectures have been investigated to reconfigure networks on demand using small cells mounted on moving objects such as vehicles and drones. However, it has been difficult to establish stable communication link to ground nodes in high-speed environments with these schemes. Therefore, this paper proposes a concept of small cells composed with crowdsourced RUs mounted on parked vehicles. They are activated based on the traffic demand in surrounding area by road side units (RSUs) assuming a smart city. The proposed idea is based on the correlation between the distribution of people and the occupancy rate of parking lots. It can efficiently improve user throughput with relatively small number of RUs. The feasibility of the proposed scheme is validated through numerical analysis, computer simulations, and experimental results.

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Section: Discussionmentioning

confidence: 99%

“…An adaptive network architecture has been investigated to address this issue [7], [8]. In this architecture, moving nodes relocate following the changes in the demand distribution to continuously provide connectivity for mobile users with small number of deployed nodes.…”

Section: Introductionmentioning

confidence: 99%

Small Cells Enabled by Crowdsourced Radio Units Mounted on Parked Vehicles for Smart City

et al. 2020

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“…Although their objective is to provide a stable and large network coverage, these tethered solutions limit the mobility of the MBS and reduce the flexibility of the movable platforms. With ABSORB, Nakayama et al [5] propose a cellular architecture composed of MBS carried by vehicles, which also includes optical fiber backhaul links. Although the base stations can change their location depending on the user demand, the location and the movement paths of the MBS are limited by the need to connect to this optical fiber backhaul.…”

Section: Related Workmentioning

confidence: 99%

Movable Base Stations in Mobile Networks for Emergency Communications

Zhang,

Stanica,

Valois

2023

2023 IEEE 34th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)

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An emergency communication system is necessary for first responders, who need to enter areas with no network coverage or damaged network infrastructure due to natural or man-made disasters to perform emergency tasks. The first responders usually rely on fixed base stations deployed according to the needs of the mission, to meet the communication needs. However, fixed base stations can pose several limitations, typically for supporting the mobility of groups of users. Thanks to the development of software defined radio and software defined networks, embedding the functions of a base station on a movable platform, such as a vehicle or a drone, is now a possible alternative. The base station carried by the movable platform can react to changes in the network in real time, allowing more flexibility and introducing a new degree of freedom for the emergency communication network. In this work, we present a quantitative network performance comparison between a fixed base station and a movable base station, when a group of first responders is moving in a geographical area for an emergency rescue mission. We show that a movable base station provides up to 4 times the throughput of a fixed base station.

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“…The feasibility of mobile BSs seems well established. For example, ABSORB [8] is a cellular architecture consisting of BS transported by terrestrial vehicles, which can connect to an optical fibre backhaul network at different points in an urban area. The BSs change their position, in order to adapt to the traffic demand.…”

Section: Related Workmentioning

confidence: 99%

Delay-based Core Network Placement in Self-Deployable Mobile Networks

Zhang

Stanica

Valois

2021

2021 IEEE Wireless Communications and Networking Conference (WCNC)

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Self-deployable mobile networks represent a new type of cellular networks, that can be rapidly deployed, easily installed, and operated on demand, anywhere, anytime. They can provide network services when a classical cellular network fails, is not suitable, or does not exist. Using network virtualization techniques, core network and base station functions can be colocated together into a single equipment. This brings the network functions closer to the user, but the placement of the local core network has a significant impact on the network performance, mainly in terms of capacity and delay. In this work, we are focused on the delay minimization from BSs to the local core network. We propose a heuristic for the local core network placement, with the objective of reducing the delay. We show that the delay obtained by our solution decreases significantly compared to a strategy that places the local core network in order to maximize the capacity. We also show that considering a capacity-based placement strategy leads to infinite delay in some cases.

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ABSORB: Autonomous base station with optical reflex backhaul to adapt to fluctuating demand

Cited by 23 publications

References 10 publications

Small Cells Enabled by Crowdsourced Radio Units Mounted on Parked Vehicles for Smart City

Small Cells Enabled by Crowdsourced Radio Units Mounted on Parked Vehicles for Smart City

Movable Base Stations in Mobile Networks for Emergency Communications

Delay-based Core Network Placement in Self-Deployable Mobile Networks

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