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Multi rate orthogonal frequency division multiplexing
IEEE International Conference on Communications, 2005. ICC 2005. 2005, 2005A novel multi rate orthogonal frequency division multiplexing (OFDM) system is proposed in this paper. It is expected to provide a flexible physical layer support to next generation wireless networks. It is mainly suited to inter carrier interference limited situations, when a large number of sub carriers are used within the available bandwidth ...
Das, Suvra Sekhar +2 more
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Orthogonal Frequency Division Multiplexing With Subcarrier Gap Modulation
2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications, 2020A new modulation scheme called orthogonal frequency division multiplexing with subcarrier gap modulation (OFDM-SGM) is proposed. The proposed scheme embeds extra information bits by exploiting the gap between the active subcarriers in each subblock.
Ahmad M. Jaradat +2 more
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Orthogonal Frequency Division Multiplexing (OFDM)
2008 China-Japan Joint Microwave Conference, 2008In broadband wireless system, the signal energy is scattered and reflected from objects in the environment, components of the signal arriving at the receiver are spread out over a longer period of time than is desirable. The challenge is then to provide a high-performance reliable data link that can operate with the restricted receiver power levels ...
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Differential Spatial Frequency Modulation with Orthogonal Frequency Division Multiplexing
2018 IEEE Global Communications Conference (GLOBECOM), 2018Spatial modulation orthogonal frequency division multiplexing with subcarrier index modulation (ISM-OFDM) is a novel OFDM technique that conveys additional information bits by active antenna indices and grouped subcarrier indices. However, it takes a huge amount of resources to acquire the channel state information (CSI) at the receiver. In this paper,
Yajun Fan +5 more
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Orthogonal Frequency Division Multiplexing with Codebook Index Modulation
2020 28th Signal Processing and Communications Applications Conference (SIU), 2020Ultra-reliable and low-latency communications (URLLC) partake a major role in future communication systems. A possible strong candidate for future URLLC networks is sparse vector coding (SVC), which enables a superior performance in terms of bit error rate (BER).
Emre Arslan +2 more
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Coded orthogonal frequency division multiplex [TV broadcasting]
Proceedings of the IEEE, 1995Technological evolution and the ever-increasing demand for higher-quality services give broadcasters a strong incentive to completely digitize their broadcasting networks. This digitization, which is already well advanced in many program production areas and transmission links, now has to be extended to complete the last link in the broadcast chain; i ...
Bernard Le Floch +2 more
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Performance Evaluation Of The Frequency Detectors For Orthogonal Frequency Division Multiplexing
International Conference on Consumer Electronics, 1997This paper deals with the performance evaluation of a total of six frequency synchronization algorithms (five known algorithms and one new algorithm proposed in this paper called the "guard-band power detection algorithm") for OFDM systems in the channel with AWGN and multipath.
null Dong-Kyu Kim +3 more
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Orthogonal Frequency and Mode Division Multiplexing for Wireless Communications
2018 IEEE Global Communications Conference (GLOBECOM), 2018Orbital angular momentum (OAM) based radio vortex wireless communications have the potential to significantly increase the spectrum efficiency (SE) without increasing extra time and frequency resources. In this paper, we propose a hybrid orthogonal division multiplexing (HODM) scheme, which jointly uses the orthogonal mode division multiplexing and the
Liping Liang +3 more
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Generalization of Orthogonal Frequency Division Multiplexing With Index Modulation
IEEE Transactions on Wireless Communications, 2015Recently, orthogonal frequency division multiplexing (OFDM) with index modulation (OFDM-IM) was proposed. By selecting a fixed number of subcarriers as active subcarriers to carry constellation symbols, the indices of these active subcarriers may carry additional bits of information.
Rui Fan, Ya Jun Yu, Yong Liang Guan 0001
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Enhanced Orthogonal Frequency Division Multiplexing With Index Modulation
IEEE Transactions on Wireless Communications, 2017Index modulation concept has attracted considerable research interest in the past few years. As a realization of index modulation in the frequency domain, orthogonal frequency division multiplexing with index modulation (OFDM-IM) has recently been proposed, which conveys information bits through both the subcarrier activation patterns and the amplitude
Miaowen Wen +4 more
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