Toward Terabit Digital Radio over Fiber Systems: Architecture and Key Technologies

Westergren, Urban; Udaļcovs, Aleksejs; Lin, Rui; Ozoliņš, Oskars; Pang, Xiaodan; Gan, Lin; Schatz, Richard; Tang, Ming; Fu, Songnian; Liu, Deming; Tong, Weijun; Popov, Sergei; Jacobsen, Gunnar; Hu, Weisheng; Xiao, Shilin; Chen, Jiajia

doi:10.1109/mcom.2019.1800426

Cited by 36 publications

(14 citation statements)

References 11 publications

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“…This leads to a higher bandwidth efficiency compared to a D-RoF transmission. Further, D-RoF architecture is also a promising technology for data transmission as it performs better when there are constraints of higher noise figure and non-linearity [9]- [11]. In D-RoF, the RF signal is digitized before being modulated onto an optical carrier.…”

Section: A State-of-the-artmentioning

confidence: 99%

Converged Medium Access Control and Dynamic Bandwidth Allocation for Radio-Over-Fiber Networks

2021

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For supporting the upcoming applications, wireless mobile users require high bandwidth. To serve these requirements, a wireless network that has an optical backbone with a colossal bandwidth capacity is required. The radio-over-fiber (RoF) network is a promising solution that can provide high bandwidth. To accomplish this goal, we propose a converged medium access control (MAC) protocol for the RoF network, which uses a single-gate or multi-gate polling algorithm for time and wavelength allocation to the users. We propose an analytical delay model for single and multiple wavelength architectures, considering the user identification and data transfer delay for single-gate and multi-gate polling algorithms. We verify it with the results obtained from simulations. Finally, we present the mean delay and packet loss rate of the proposed algorithm by varying the user load and traffic burstiness and prove that the proposed algorithm gives better delay performance and a lower packet loss than the state-of-the-art algorithms.INDEX TERMS Dynamic bandwidth allocation, fiber wireless network, medium access control protocol, radio-over-fiber.

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Section: A State-of-the-artmentioning

confidence: 99%

Converged Medium Access Control and Dynamic Bandwidth Allocation for Radio-Over-Fiber Networks

2021

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“…The CPRI and/or enhanced CPRI (eCPRI) protocols are commonly used options for interfacing purposes [31], [32]. However, CPRI requires a large number of quantization bits (QBs = 15) for the digitization of radio signals, resulting in high MFH capacity requirements [9], whereas eCPRI provides the possibility to choose a split point between the RRU and the BBU functions to reduce the load on the fronthaul links. There are eight split options that have been currently defined, where the last three (i.e., Option a conventional MFH with D-RoF links where CPRI may be used as the encapsulation protocol.…”

Section: Digital and Analog Rof Achitecures For Mobile Fronthaulmentioning

confidence: 99%

“…Using parallel intensity/phase modulators (IM/PM), a CPRI-equivalent data rate of 1.032 Tbps is demonstrated for a 20 km transmission of 14×1.2 GHz OFDM-64QAM signals. A higher data rate is reported only in [9], where a 5.210 Tbps transmission was achieved for a digital radio over a multicore fiber (D-RoMCF) system, exploiting self-homodyne coherent detection and a novel method of compressed quantization. The latter reduces the required number of quantization bits thanks to high correlations between neighboring samples of the analog waveform, which enables QAM orders as high as 16384 to be used in D-RoF systems [11], [12].…”

Section: Related Workmentioning

confidence: 99%

Total Cost of Ownership of Digital vs. Analog Radio-Over-Fiber Architectures for 5G Fronthauling

et al. 2020

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“…Thus, the vector coding has another merit compared with the differential coding, shown in its adaption to high PAPR to analog radio signals like OFDM. As a result, lossless coding could theoretically improve the performance of differential coding while could not improve vector coding [15][16]. Finally, the supported QAM orders vary from 4 to 4096, which can support various types of radio services, and the thresholds of different modulation orders are referred to 3GPP standard (3GPP TS 36.104 V12.6.0).…”

Section: Aggregated 5g-nr Channels Equivalent Cpri Rates (Tbps)mentioning

confidence: 99%

Key technologies to enable terabit-scale digital radio-over-fiber systems

Pang¹,

Zhang²,

Ozoliņš³

et al. 2019

Broadband Access Communication Technologies XIII

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With the approach of the 5G era, stringent requirements are imposed on the data transport solutions, including both of the supported transmission reach and the capacity. Radio-over-fiber technologies are considered to be promising candidates to cope with both aspects, owing to the low-loss and broad-bandwidth nature of the optical fibers. Meanwhile with such optical transport solutions, signals can be collected from the distributed remote radio sites and processed in a centralized manner. In this report, we target on the digital radio-over-fiber systems, and discuss about several key technologies, focusing on the aspects of coding and transmission, which could potentially enable terabit-scale data transport.

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Toward Terabit Digital Radio over Fiber Systems: Architecture and Key Technologies

Cited by 36 publications

References 11 publications

Converged Medium Access Control and Dynamic Bandwidth Allocation for Radio-Over-Fiber Networks

Converged Medium Access Control and Dynamic Bandwidth Allocation for Radio-Over-Fiber Networks

Total Cost of Ownership of Digital vs. Analog Radio-Over-Fiber Architectures for 5G Fronthauling

Key technologies to enable terabit-scale digital radio-over-fiber systems

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