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Coexistence of UF-OFDM and CP-OFDM
2016 IEEE 83rd Vehicular Technology Conference (VTC Spring), 2016Universal Filtered Orthogonal Frequency Division Multiplexing (UF-OFDM) is considered as a promising 5G waveform candidate. It requires a relatively simple transceiver structure, while achieving much better spectral properties compared to CP-OFDM. During the early deployment of 5G systems, many frequency bands will still be occupied by 4G systems ...
Ahmed, Rana +2 more
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IEEE Communications Magazine, 1998
This article discusses the VLSI implications of high-speed coded orthogonal frequency-division multiplexing modulation. This is achieved by looking at practical examples of the computational blocks that constitute a COFDM modem and then examining examples of COFDM chips.
Neil Weste, David J. Skellern
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This article discusses the VLSI implications of high-speed coded orthogonal frequency-division multiplexing modulation. This is achieved by looking at practical examples of the computational blocks that constitute a COFDM modem and then examining examples of COFDM chips.
Neil Weste, David J. Skellern
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P-OFDM: Spectrally Efficient Unipolar OFDM
Optical Fiber Communication Conference, 2014A novel OFDM signal format, polar-OFDM (P-OFDM), is proposed. P-OFDM offers twice as much spectral efficiency as state-of-the-art real-value unipolar OFDM formats. Inherently, the high PAPR is reduced and the numerical evaluation of the BER performance under dynamic-range constraint of optical sources demonstrates superior results.
Hany Elgala, Thomas D. C. Little
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A OFDM module for a MB-OFDM receiver
2007 International Conference on Design & Technology of Integrated Systems in Nanoscale Era, 2007The rules defined by FFC, for marketing and operation of UWB products, permitted the use of orthogonal frequency division multiplexing (OFDM) to implement UWB communications. MB-OFDM is taking place as good approach to UWB, for instance for wireless USB.
Nuno Rodrigues +2 more
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Comparison of DCO-OFDM, ADO-OFDM, HDC-OFDM and HNC-OFDM for Optical Wireless Communications
Journal of Optical Communications, 2018Abstract This paper presents a new form of orthogonal frequency division multiplexing (OFDM) termed as hybrid noise cancelled asymmetrically clipped optical OFDM (HNC-OFDM) for optical wireless communication. This HNC-OFDM is formed by combining the concepts of noise cancelled asymmetrically clipped optical OFDM and DC biased optical ...
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A Postfix Synchronization Method for OFDM and MIMO-OFDM Systems
2008 IEEE Wireless Communications and Networking Conference, 2008This paper proposes a synchronization method that uses as preamble two identical training parts (Chu sequences) followed by a flipped postfix (FlP) for OFDM and MIMO-OFDM systems. The proposed method provides symbol timing and carrier frequency offset (CFO) estimators.
Yaobin Wen, Florence Danilo-Lemoine
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Technology Independent Security Aware OFDM (SA-OFDM)
2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2019Orthogonal frequency division multiplexing (OFDM) is currently the most prominent modulation technique, mainly due to it’s spectral efficiency. To improve the security performance of OFDM based systems, multiple security approaches are proposed in literature, including physical-layer (PHY) approaches.
Monette H. Khadr +5 more
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Precoded OFDM for asynchronous uplink with transparency to OFDM receiver
2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 2017A novel waveform design approach is taken to develop a waveform based on precoding of data symbols, referred to as Precoded OFDM. The waveform is tailored for robustness against asynchronous transmission and a simple OFDM receiver to keep its intricacies hidden from the system.
Saeed Afrasiabi Gorgani +2 more
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On the comparison between conventional ofdm and mse-ofdm systems
GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489), 2004A new multi-symbol encapsulated orthogonal frequency division multiplexing (MSE-OFDM) system is proposed, in which one cyclic prefix (CP) is used for a frame of multiple OFDM symbols. A system level comparison between a conventional OFDM and the proposed MSE-OFDM system is presented in this study.
Xianbin Wang 0001 +2 more
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Interference Comparison between OFDM & FH-OFDM Systems
Proceedings of the 14th ACM International Symposium on QoS and Security for Wireless and Mobile Networks, 2018Orthogonal Frequency Division Multiplexing (OFDM) is a common modulation technique that is being used in many of modern wireless communications and standards due to its excellent spectral efficiency and immunity to multipath interference in fading channel. In this paper, a Frequency Hopping Orthogonal Frequency Division Multiplexing (FH-OFDM) system is
Mohamed Sakr, M. Reza Soleymani
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