Results 11 to 20 of about 140,441 (346)

Orthogonal frequency division multiplexing with index modulation [PDF]

2012 IEEE Global Communications Conference (GLOBECOM), 2012
In this paper, a novel orthogonal frequency division multiplexing (OFDM) scheme, called OFDM with index modulation (OFDM-IM), is proposed for operation over frequency-selective and rapidly time-varying fading channels. In this scheme, the information is conveyed not only by M-ary signal constellations as in classical OFDM, but also by the indices of ...
Başar, Ertuğrul, Aygölü, Ümit, Panayırcı, Erdal, Poor, H. Vincent   +3 more
openaire   +6 more sources

10 Mb/s visible light transmission system using a polymer light-emitting diode with orthogonal frequency division multiplexing [PDF]

Optics Letters, 2014
We present a newly designed polymer light-emitting diode with a bandwidth of ~350  kHz for high-speed visible light communications. Using this new polymer light-emitting diode as a transmitter, we have achieved a record transmission speed of 10  Mb/s for
Son Thai Le, Thavamaran Kanesan, Francesco Bausi, Paul Anthony Haigh, Sujan Rajbhandari, Zabih Ghassemlooy, Ioannis Papakonstantinou, Wasiu O. Popoola, Andrew Burton, Hoa Le Minh, Franco Cacialli, A.D. Ellis   +11 more
openalex   +2 more sources

Chaotic-based Orthogonal Frequency Division Multiplexing with Index Modulation

Journal of Telecommunications and Information Technology, 2022
Orthogonal frequency division multiplexing with index modulation (OFDM-IM), stands out among conventional communication technologies, as it uses the indices of the available transmit entities. Thanks to such an approach, it offers a novel method for the
Sura H. Hussien, Hamsa A. Abdullah
doaj   +3 more sources

Space-Time Multiple-Mode Orthogonal Frequency Division Multiplexing With Index Modulation

IEEE Access, 2017
Multiple-mode orthogonal frequency division multiplexing with index modulation (MM-OFDM-IM) improves the spectral efficiency of the conventional OFDM-IM scheme by considering multiple distinguishable constellations for signal modulation.
Jun Li, Miaowen Wen, Xueqin Jiang, Wei Duan   +3 more
doaj   +2 more sources

Orthogonal Delay-Doppler Division Multiplexing Modulation [PDF]

IEEE Trans. Wireless Commun., vol. 21, no. 12, pp. 11024-11037, Dec. 2022, 2022
Inspired by the orthogonal time frequency space (OTFS) modulation, in this paper, we consider designing a multicarrier (MC) modulation on delay-Doppler (DD) plane, to couple the modulated signal with a doubly-selective channel having DD resolutions. A key challenge for the design of DD plane MC modulation is to investigate whether a realizable pulse ...
Hai-Hsing Lin, Jinhong Yuan
arxiv   +3 more sources

Enhanced Orthogonal Frequency-Division Multiplexing With Subcarrier Number Modulation [PDF]

IEEE Internet of Things Journal, 2019
A novel modulation scheme termed orthogonal frequency-division multiplexing with subcarrier number modulation (OFDM-SNM) has been proposed and regarded as one of the promising candidate modulation schemes for next generation networks. Although OFDM-SNM is capable of having a higher spectral efficiency (SE) than OFDM with index modulation (OFDM-IM) and ...
Shuping Dang, Guoqing Ma, Basem Shihada, Mohamed-Slim Alouini   +3 more
openaire   +6 more sources

Coherent optical orthogonal frequency division multiplexing

Electronics Letters, 2006
Coherent optical orthogonal frequency division multiplexing is proposed to combat dispersion in optical media. It is shown that optical-signal-to-noise ratio penalty at 10 Gbit/s is maintained below 2 dB for 3000 km transmission of standard-singlemode fibre without dispersion compensation.
William Shieh, C.R.N. Athaudage
openaire   +3 more sources

Green optical orthogonal frequency‐division multiplexing networks

IET Optoelectronics, 2014
Orthogonal frequency‐division multiplexing (OFDM) has been proposed as an enabling technique for elastic optical networks to support heterogeneous traffic demands by enabling rate and modulation adaptive bandwidth allocation. The authors investigate the energy efficiency of optical OFDM‐based networks.
Xiaowen Dong, Taisir E. H. El-Gorashi, Jaafar M. H. Elmirghani   +2 more
openaire   +3 more sources

Orthogonal Frequency Division Multiplexing With Generalized Joint Index Modulation

IEEE Open Journal of the Communications Society
Orthogonal frequency division multiplexing with index modulation (OFDM-IM) is a promising multi-carrier technique for next generation wireless communication networks.
Zeng Hu, Yanke Che, Jing Wang, Xuhong Peng, Chaobo He, Dehuan Wan, Yun Liu, Ting Wu   +7 more
doaj   +2 more sources

Interleave Frequency Division Multiplexing [PDF]

arXiv
In this letter, we study interleave frequency division multiplexing (IFDM) for multicarrier modulation in static multipath and mobile time-varying channels, which outperforms orthogonal frequency division multiplexing (OFDM), orthogonal time frequency ...
Chen, Xuehui, Chi, Yuhao, Ge, Yao, Li, Ying, Liu, Lei, Zhang, Zhaoyang   +5 more
core   +1 more source