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A multiband radio-over-fiber network for a fifth-generation mobile communications technology mobile fronthaul network is designed, and it will transmit radio frequency signals in four different frequency bands of 700 MHz, 1. 8 GHz, 3. 5 GHz, and 26 GHz with different data rates simultaneously. Four transmitted RF signals' errors vector magnitudes are investigated, as a function of the received optical power. After transmitting over a 10 km SSMF, the power penalty of the system is within 1. 9 dB at the 3GPE EVM performance specification.
Source link: https://doi.org/10.1364/ao.437590
For a 5G edge cloud cloud, an edge data center network infrastructure is required to flexibly provide high bandwidth and ultralow latency. We present an EDC network architecture and prototype testbed in this paper, also known as the intelligence-defined optical tunnel network infrastructure. OPTUNS is a series of optical switching subsystems that function collectively to enable packet transport by logical wavelength-based optical tunnels. In a proactive manner, these optical tunnels are managed by a software-defined-networking-based intelligent tunnel control device. OPTUNS' power savings of 86. 6 percent is shown by benchmarking results, which compares to electrical spine-leaf networks.
Source link: https://doi.org/10.1364/jocn.12.000a28
A huge number of wireless access points will be heavily deployed for services such as mobile fronthaul and Internet-of-Things networks in the forthcoming 5G mobile communications era. We recommend a flexible bandwidth allocation scheme that raises uplink bandwidth allocations in a different manner at every sub-network in order to simultaneously satisfy each sub-network's need.
Source link: https://doi.org/10.1364/jocn.12.00a135
To accommodate 5G use-cases, the creation of a radio access network infrastructure with the ability to support a variety of user-demanded mobile traffic characteristics is required. The plethora of services envisaged to support 5G use-cases calls for the creation of a radio access network infrastructure that can accommodate a variety of user-demanded mobile traffic characteristics. The proposed heterogeneous RAN architecture is also shown to demonstrate the successful operation of novel 5G technologies in a mixed fiber-wireless scenario, as well as a free-space optics fronthaul extension with 55 m, allowing coexistence with currently deployed 4G LTE networks over a shared fronthaul infrastructure.
Source link: https://doi.org/10.1364/jocn.382654
According to a numerical analysis of ERON's photonic-enabled 5G system's energy consumption, the ERON is 5u00d7 more energy efficient than both conventional digital and hybrid RF beam-forming methods. A 10 dB network resource pooling increase was seen in comparison to traditional radio access network deployments, according to a user mobility-aware network resources research.
Source link: https://doi.org/10.1364/jocn.390428
One of three typical services in the fifth generation of cell network paradigm is a robust low latency communications with stringent demands of high availability and low latency. This paper explores how to effectively execute end-to-end URLLC slicing based on PD in 5G optical transport networks. With dynamic slice requests, simulations are used to determine and compare their results in terms of slice blocking probability and resource utilization. Simulation results indicate that PDS-WI outperforms PDS-LI by accommodating more URLLC slices, which demonstrates that PDS-WI outperforms PDS-LI by outperforms PDS-LI.
Source link: https://doi.org/10.1364/jocn.389672
Fixed optical transport is the most common fronthaul mode for 4G mobile access networks, moving the traffic between the central office and subordinate antenna stations. We review low-cost optical fronthaul solutions aided by advanced modulation techniques and wavelength-agnostic passive wavelength division multiplexing technologies in this paper. We also discuss why an Ethernet-based 5G fronthaul solution does need additional hardware to improve the latency and timing of the common packet forwarding and multiplexing operations.
Source link: https://doi.org/10.1364/jocn.391033
Service provision over substrate network links has recently been suggested to suit the diverse needs of 5G radio access networks in terms of bandwidth, computation, latency, and reliability. Even though existing research has shown how to provide 5G RAN slicing to flexibly provision service according to their initial requirements, a nimble RAN slice adjustment and migration strategy is also required to accommodate the highly mobile nature of mobile traffic while still maintaining lower service blocking.
Source link: https://doi.org/10.1364/jocn.403829
Fo fog computing has been described as a promising technology to be embedded into 5G networks, in which computation, storage, and networking services are provisioned close to end users, greatly reducing the latency caused in transport networks, and thus greatly reducing the latency caused by transport networks. It has been considered that to fix this problem, service migration, which migrates the associated services from the current fog server to the target one to track the travelers' location and keep the service operation safe, has been considered. However, service migration cannot be completed immediately and could result in a situation where users lose service access as a result. The simulation shows that the RL-based algorithm is able to self-adapt to a dynamic traffic environment and delivers converged results, with no effect on non-migration traffic than the two benchmarks but raising the migration success rate is high.
Source link: https://doi.org/10.1364/jocn.400772
Availability is a key service metric when it comes to deploying service function chains over network slices in 5G networks. We investigate the challenge of determining the composition of a slice for a service function chain and ensuring the SFC's availability while also minimizing costs.
Source link: https://doi.org/10.1364/jocn.403721
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