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相关论文: High Speed Data Transmission over GI-MMF Using Mod…

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Future wireless communication systems must simultaneously address multiple challenges to ensure accurate data detection, deliver high Quality of Service (QoS), adding enable a high data transmission with low system design. Additionally,…

信息论 · 计算机科学 2024-10-03 Amina Darghouthi , Abdelhakim Khlifi , Belgacem Chibani

We propose and model an optical communication scheme for short distance datacom links based on the distribution of information across a wide comb spectrum. This modulation format, orthogonal delay division multiplexing, allows the…

光学 · 物理学 2023-10-27 Andrea Zazzi , Jeremy Witzens

This letter investigates the problem of providing gigabit wireless access with reliable communication in 5G millimeter-Wave (mmWave) massive multiple-input multiple-output (MIMO) networks. In contrast to the classical network design based…

网络与互联网体系结构 · 计算机科学 2019-08-16 Trung Kien Vu , Mehdi Bennis , Merouane Debbah , Matti Latva-aho , Choong Seon Hong

Gi-Fi stands for Gigabit Wireless. Gi-Fi is a wireless transmission system which is ten times faster than other technology and its chip delivers short-range multigigabit data transfer in a local environment. Gi-Fi is a wireless technology…

网络与互联网体系结构 · 计算机科学 2013-07-03 Jyoti Tewari , Swati Arya

In this paper we report successful transmission of 10 Gbit/s on-off-keying (OOK) modulated signal through the LR-DLSPPWs with almost negligible degradation of the data flow consistency

Photon counting detectors such as single-photon avalanche diode (SPAD) arrays can be utilized to improve the sensitivity of optical wireless communication (OWC) systems. However, the achievable data rate of SPAD-based OWC systems is…

信息论 · 计算机科学 2022-04-06 Shenjie Huang , Cheng Chen , Rui Bian , Harald Haas , Majid Safari

We propose and validate a novel optical semantic transmission scheme using multimode fiber (MMF). By leveraging the frequency sensitivity of intermodal dispersion in MMFs, we achieve high-dimensional semantic encoding and decoding in the…

信号处理 · 电气工程与系统科学 2024-09-04 Zheng Gao , Ting Jiang , Mingming Zhang , Hao Wu , Ming Tang

We consider a multi-user multiple-input multiple-output (MU-MIMO) system that uses orthogonal frequency division multiplexing (OFDM). Several receivers are developed for data detection of MU-MIMO transmissions where two users share the same…

Motivated by MIMO broad-band fading channel model, in this section a comparative study is presented regarding various uncoded adaptive and non-adaptive MIMO detection algorithms with respect to BER/PER performance, and hardware complexity.…

其他计算机科学 · 计算机科学 2010-06-17 Nirmalendu Bikas Sinha , R. Bera , M. Mitra

Discrete multi-tone transmission (DMT) is a promising candidate for future 400G data center interconnects. Eight channels, each carrying 56 Gb/s of data can be combined in a 50-GHz channel grid to form a 400 Gb/s superchannel. For a fully…

信号处理 · 电气工程与系统科学 2020-09-23 Annika Dochhan , Helmut Griesser , Nicklas Eiselt , Michael Eiselt , Jörg-Peter Elbers

Two novel 5.5 bit/4D modulation formats are experimentally demonstrated to transmit over 9680 km of SSMF. A reach increase of 29.4% over the 6 bit/4D PM-8QAM is shown. Furthermore, increased nonlinear tolerance with respect to PM-8QAM is…

信号处理 · 电气工程与系统科学 2020-11-02 Sjoerd van der Heide , Bin Chen , Menno van den Hout , Hartmut Hafermann , Ton Koonen , Alex Alvarado , Chigo Okonkwo

We analyze the diversity gain for a distributed antenna subarray employing orthogonal frequency-division multiplexing (OFDM) in millimeter-wave (mm-Wave) massive multiple-input multiple-output (MIMO) systems. We show that the diversity gain…

信息论 · 计算机科学 2021-05-11 Sadjad Sedighi , Ender Ayanoglu

Using a novel geometrically-shaped four-dimensional modulation format, we transmitted 11x200 Gbit/s DWDM at 4.8 bit/4D-sym over 7,925 km and 11,700 km using EDFA-only and hybrid amplification, respectively. A reach increase of 16% is…

信号处理 · 电气工程与系统科学 2020-06-08 Sjoerd van der Heide , Bin Chen , Menno van den Hout , Gabriele Liga , Ton Koonen , Hartmut Hafermann , Alex Alvarado , Chigo Okonkwo

Advanced channel decoders rely on soft-decision decoder inputs for which mutual information (MI) is the natural figure of merit. In this paper, we analyze an optical fiber system by evaluating MI as the maximum achievable rate of…

信息论 · 计算机科学 2015-11-20 Tobias Fehenberger , Norbert Hanik

This paper considers a decode-and-forward (DF) multi-way massive multiple-input multiple-output (MIMO) relay system where many users exchange their data with the aid of a relay station equipped with a massive antenna array. We propose a new…

信息论 · 计算机科学 2017-04-03 Chung Duc Ho , Hien Quoc Ngo , Michail Matthaiou , Trung Q. Duong

The Golden Code is a full-rate full-diversity space-time code, which achieves maximum coding gain for Multiple-Input Multiple-Output (MIMO) systems with two transmit and two receive antennas. Since four information symbols taken from an…

信息论 · 计算机科学 2012-08-17 Boyu Li , Ender Ayanoglu

Machine learning (ML) can be used in various ways to improve multi-user multiple-input multiple-output (MU-MIMO) receive processing. Typical approaches either augment a single processing step, such as symbol detection, or replace multiple…

信息论 · 计算机科学 2021-07-01 Mathieu Goutay , Fayçal Ait Aoudia , Jakob Hoydis , Jean-Marie Gorce

In this article, the performance of a fixed grid network is examined for various modulation formats to estimate the system's capacity and spectral efficiency. The optical In-phase Quadrature Modulator structure is used to build a fixed grid…

网络与互联网体系结构 · 计算机科学 2023-10-20 Adarsha M , S. Malathi , Santosh Kumar

In this paper we carry out a joint optimization of probabilistic (PS) and geometric shaping (GS) for four-dimensional (4D) modulation formats in long-haul coherent wavelength division multiplexed (WDM) optical fiber communications using an…

Multimode fibers (MMFs) offer a cost-effective connection solution for small and medium length networks. However, data rates through multimode fibers are traditionally limited by modal dispersion. Signal processing and Multiple-Input…

光学 · 物理学 2011-10-06 Kumar Appaiah , Sagi Zisman , Sriram Vishwanath , Seth R. Bank