2014
DOI: 10.1049/iet-com.2014.0644
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Energy‐efficient orthogonal frequency division multiplexing scheme based on time–frequency joint channel estimation

Abstract: Time-domain synchronous orthogonal frequency division multiplexing (TDS-OFDM) enjoys the higher spectrum efficiency and faster synchronisation than the classical cyclic prefix OFDM (CP-OFDM). However, TDS-OFDM suffers from performance degradation especially under severely fading channels with long delays. To solve these problems, the authors propose an energy-efficient OFDM scheme called time-frequency-training orthogonal frequency division multiplexing (TFT-OFDM) based on the time-frequency joint channel esti… Show more

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Cited by 10 publications
(3 citation statements)
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References 27 publications
(41 reference statements)
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“…However, VLC cannot be the information source directly and the only way for VLC to become the access point (AP) is to connect with the backbone network. Power line communication (PLC) [8, 9], which has a mature coded modulation scheme [10, 11], noise cancellation method [12–14], and channel estimation approach [15, 16], can be a good solution for this problem by combining PLC and VLC to a whole. The power line provides power to LEDs of the VLC system, and simultaneously acts as the signal source of VLC.…”
Section: Introductionmentioning
confidence: 99%
“…However, VLC cannot be the information source directly and the only way for VLC to become the access point (AP) is to connect with the backbone network. Power line communication (PLC) [8, 9], which has a mature coded modulation scheme [10, 11], noise cancellation method [12–14], and channel estimation approach [15, 16], can be a good solution for this problem by combining PLC and VLC to a whole. The power line provides power to LEDs of the VLC system, and simultaneously acts as the signal source of VLC.…”
Section: Introductionmentioning
confidence: 99%
“…Power line communication (PLC) [5], which has a mature coded modulation scheme [6] [7], noise cancellation method [8] [9], and channel estimation approach [10] [11], can be a good solution for this problem by the method of combining VLC and PLC to a whole. The power line provides power to LEDs of the VLC system, and simultaneously acts as the signal source of VLC.…”
Section: Introductionmentioning
confidence: 99%
“…The essential idea of the CS theory can be summarized that a "sparse" signal that has a high dimension can be recovered exactly from the measurement vector whose size is much smaller than that of the desired sparse signal [12]. CS has been applied to many areas such as channel estimation [13], [14]. The CS algorithms for signal recovery are studied by many researchers, such as the sparsity adaptive matching pursuit (SAMP) [15] and subspace pursuit (SP) [16].…”
Section: Introductionmentioning
confidence: 99%