Results 61 to 70 of about 4,474,307 (216)

Ambiguity Function Optimization Based on Joint Communication and Sensing Waveform

Electronics Letters, Volume 62, Issue 1, January/December 2026.
The sidelobe suppression strategy proposed in this study demonstrates significant advantages. Its ability to effectively reduce ambiguity function sidelobes has important practical significance for engineering. ABSTRACT The ambiguity function (AF) plays a critical role in joint communication and sensing (JCAS) systems. In this letter, we design a novel
Zheming Guo, Baixiao Chen
wiley   +1 more source

A new reduced-complexity detection scheme for zero-padded OFDM transmissions

EURASIP Journal on Wireless Communications and Networking, 2011
Recently, zero-padding orthogonal frequency division multiplexing (ZP-OFDM) has been proposed as an alternative solution to the traditional cyclic prefix (CP)-OFDM, to ensure symbol recovery regardless of channels nulls.
Eghbali Homa, Muhaidat Sami
doaj  

Orthogonal frequency division multiplexing (OFDM) in photonic communications

OFDM has emerged as a promising modulation technique in long-haul and access optical networks because of a number of advantages: Scalable spectrum partitioning, good spectral efficiency, dispersion tolerance, and a natural suitability for software ...
Vallaitis, T., Ellermeyer, T., Möller, M., Ben Ezra, S., Petropoulos, P., Schellinger, T., Hillerkuss, D., Weingarten, K., Freude, W., Schmogrow, R., Marculescu, A., Bonk, R., Meyer, J., Winter, M., Nebendahl, B., Dreschmann, M., Lutz, J., Parmigiani, F., Li, J., Resan, B., Narkiss, N.   +20 more
core   +1 more source

Recital on Multicarrier Communications: Space-Time Coded versus Adaptive OFDM/MC-CDMA

, 2004
This overview portrays the evolution of multi-carrier systems from their conception and demonstrates that they are capable of supporting the requirements of future wireless systems of the next generation.
Munster, M, Hanzo, L., Yang, L-L, Choi, B.J.   +3 more
core   +1 more source

Generalized Filter Bank Orthogonal Frequency Division Multiplexing: Low-Complexity Waveform for Ultra-Wide Bandwidth and Flexible Services

Entropy
Terahertz (THz) communication is a crucial technique in sixth generation (6G) mobile networks, which allow for ultra-wide bandwidths to enable ultra-high data rate wireless communication.
Yu Xin, Jian Hua, Tong Bao, Yaxing Hao, Ziheng Xiao, Xin Nie, Fanggang Wang   +6 more
doaj   +1 more source

OFDM–IDMA for Uplink Transmission in Passive Optical Networks

IEEE Photonics Journal, 2012
In this paper, we propose the orthogonal frequency-division multiplexing-interleaved division multiplexing access (OFDM-IDMA) technique for passive optical networks (PONs).
C. Sanchez, B. Ortega, J. Capmany
doaj   +1 more source

Research on modified selected mapping technique for PAPR reduction and reception performance improvement in 8QAM-OFDM optical access systems

Journal of the European Optical Society-Rapid Publications, 2017
Background Orthogonal frequency division multiplexing has been regarded as one of the promising technologies for the optical access systems application.
Yufeng Shao, Wenzhe Ma
doaj   +1 more source

OFDM aided space-time shift keying for dispersive downlink channels [PDF]

, 2012
The performance of a Space-Time Shift Keying (STSK) scheme was shown to degrade in frequency-selective fading channels. Hence, we propose Orthogonal Frequency Division Multiplexing (OFDM) combined with STSK for frequency-selective broadband channels ...
Mohammad Ismat Kadir, Fulvio Babich, Marco Driusso, Babich, Fulvio, Driusso, Marco, L. Hanzo, M. I. Kadir, Kadir, Mohammad Ismat, Hanzo, Lajos, Lajos Hanzo   +9 more
core   +1 more source

Unified Model and Survey on Modulation Schemes for Next-Generation Automotive Radar Systems

Remote Sensing
Commercial automotive radar systems for advanced driver assistance systems (ADASs) have relied on frequency-modulated continuous wave (FMCW) waveforms for years due to their low-cost hardware, simple signal processing, and established academic and ...
Moritz Kahlert, Tai Fei, Yuming Wang, Claas Tebruegge, Markus Gardill   +4 more
doaj   +1 more source

Analysis and Design of Channel Estimation in Multicell Multiuser MIMO OFDM Systems [PDF]

, 2014
This paper investigates the uplink transmission in multicell multiuser multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. The system model considers imperfect channel estimation, pilot contamination (PC), and
Xu, Peng, Qi, Feng, Wang, Jinkuan, Wang, Jiangzhou   +3 more
core   +1 more source