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相关论文: A Survey on High-Capacity OFDM-based Passive Optic…

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Spectrally and energy efficient orthogonal frequency division multiplexing (SEE-OFDM) is an optical OFDM technique based on combining multiple asymmetrically clipped optical OFDM (ACO-OFDM) signals into one OFDM signal. By summing different…

信息论 · 计算机科学 2015-10-29 Emily Lam , Sarah Kate Wilson , Hany Elgala , Thomas D. C. Little

Due to the emergence of new paradigms and services such as 5G/6G, IoT, and more, current deployed wired Data Center Networks (DCNs) are not meeting the required performance metrics due to their limited reconfigurability, scalability, and…

网络与互联网体系结构 · 计算机科学 2022-03-22 Abrar S. Alhazmi , Sanaa H. Mohamed , T. E. H. El-Gorashi , Jaafar M. H. Elmirghani

Optical wireless communication (OWC) leverages the terahertz-scale optical spectrum to enable ultra-fast data transfer, offering a compelling alternative to often-congested radio frequency systems. However, the highly directional nature of…

系统与控制 · 电气工程与系统科学 2025-08-19 Hongwei Cui , Soung Chang Liew

This paper investigates the performance of a two-tier AWGR-based Passive Optical Network (PON) data centre architecture against an AWGR-based PON data centre architecture by considering various scenarios involving link failures to evaluate…

网络与互联网体系结构 · 计算机科学 2024-07-16 Mohammed Alharthi , Sanaa H. Mohamed , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani

The recent rise of electricity generation based on renewable energy sources increases the demand for transmission capacity. Capacity expansion via the upgrade of transmission line capacity, e.g., by conversion to a high-voltage direct…

最优化与控制 · 数学 2016-11-01 Matthias Hotz , Wolfgang Utschick

The feasibility of achieving faster data transmission using advanced digital modulation techniques over the current CMS Tracker analog optical link is explored. The spectral efficiency of Quadrature Amplitude Modulation -Orthogonal…

仪器与探测器 · 物理学 2010-04-29 Stefanos Dris , Markus Axer , Costas Foudas , Karl Gill , Robert Grabit , Jan Troska , Francois Vasey

In the past few years, the demand for high data rate services has increased dramatically. The congestion in the radio frequency (RF) spectrum (3 kHz ~ 300 GHz) is expected to limit the growth of future wireless systems unless new parts of…

信号处理 · 电气工程与系统科学 2019-01-01 Osama Alsulami , Ahmed Taha Hussein , Mohammed T. Alresheedi , Jaafar M. H. Elmirghani

Photonic network-on-chip (PNoC) architectures employ photonic links with dense wavelength-division multiplexing (DWDM) to enable high throughput on-chip transfers. Unfortunately, increasing the DWDM degree (i.e., using a larger number of…

Passive optical networks (PONs) have become a promising broadband access network solution. To ensure a reliable transmission, and to meet service level agreements, PON systems have to be monitored constantly in order to quickly identify and…

机器学习 · 计算机科学 2023-04-05 Khouloud Abdelli , Carsten Tropschug , Helmut Griesser , Stephan Pachnicke

Optical wireless communication (OWC) is a promising technology anticipated to play a key role in the next-generation network of networks, especially as a complementary technology to traditional radio frequency communications, for enhancing…

Visible light communication (VLC) systems can provide illumination and communication simultaneously via light emitting diodes (LEDs). Orthogonal frequency division multiplexing (OFDM) waveforms transmitted in a VLC system will have high…

信息论 · 计算机科学 2014-06-25 Z. Yu , R. J. Baxley , G. T. Zhou

This work presents a performance evaluation based on elaborated analytical expressions of error probability for broadband access network in the case of a combined technique of dense wavelength division multiplexing (DWDM) and one…

网络与互联网体系结构 · 计算机科学 2012-06-11 Ahmed Dooguy Kora

Nowadays, IEEE 802.11, i.e., Wi-Fi has emerged as a prevailing technology for broadband wireless networking. To meet the tremendous rise of demand for future generation wireless LANs, a robust and efficient MAC protocol is required for the…

网络与互联网体系结构 · 计算机科学 2023-04-04 Gazi Zahirul Islam

The Single Carrier-Frequency Division Multiple Access (SC-FDMA) is a transmission technique used in the uplink of Long Term Evolution (LTE) and 5G systems, as it is characterized by reduced transmitted signal envelope fluctuations in…

网络与互联网体系结构 · 计算机科学 2025-01-22 Pawel Kryszkiewicz

Driven by the growing demand for large-scale artificial intelligence applications, disaggregated compute nodes and high-radix switches in next-generation computing clusters are set to surpass the capacity of current optical interconnect…

Orthogonal frequency division multiplexing (OFDM) has proven itself as an effective multi-carrier digital communication technique. In recent years the interest in optical OFDM has grown significantly, due to its spectral efficiency and…

信号处理 · 电气工程与系统科学 2020-09-01 Amir Weiss , Arie Yeredor , Mark Shtaif

Mode division multiplexing (MDM) in optical fibers enables multichannel capabilities for various applications, including data transmission, quantum networks, imaging, and sensing. However, MDM optical fiber systems, usually necessities…

光学 · 物理学 2023-11-10 Kaihang Lu , Zengqi Chen , Hao Chen , Wu Zhou , Zunyue Zhang , Hon Ki Tsang , Yeyu Tong

Orthogonal Frequency Division Multiplexing (OFDM) combined with Multiple-Input Multiple-Output (MIMO) techniques forms the backbone of modern wireless communication systems. While offering high spectral efficiency and robustness,…

系统与控制 · 电气工程与系统科学 2025-07-21 Rahul Gulia

This paper presents a performance analysis of the design space of optical datacenter networks, including both demand-oblivious (static or dynamic) and demand-aware networks. We formally show that the number of specific optical switch types…

网络与互联网体系结构 · 计算机科学 2020-10-27 Chen Griner , Johannes Zerwas , Andreas Blenk , Manya Ghobadi , Stefan Schmid , Chen Avin

Orthogonal frequency division multiplexing (OFDM) is a modulation technique susceptible to source, channel and amplifier nonlinearities because of its high peak-to-average ratio (PAPR). The distortion gets worse by increasing the average…

信息论 · 计算机科学 2014-04-07 Mohammad Noshad , Maite Brandt-Pearce