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

IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 23212-23222 ◽  
Author(s):  
Jun Li ◽  
Miaowen Wen ◽  
Xueqin Jiang ◽  
Wei Duan
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Space Time ◽  
Frequency Division Multiplexing ◽  
Frequency Division ◽  
Multiple Mode ◽  
Index Modulation

scholarly journals Space Time Trellis Code Frequency Index Modulation with Neuro-LS Channel Estimation in OFDM

2019 ◽  
Vol 5 (9) ◽  
pp. 7
Author(s):  
Sarita Yadav ◽  
Ashish Nema ◽  
Jitendra Mishra
Keyword(s):  
Channel Estimation ◽  
Orthogonal Frequency Division Multiplexing ◽  
Transmission Rate ◽  
Space Time ◽  
Time Shift ◽  
Frequency Division Multiplexing ◽  
Frequency Division ◽  
Error Performance ◽  
Result Analysis ◽  
Index Modulation

In wireless communication, orthogonal frequency division multiplexing (OFDM) plays a major role because of its high transmission rate. In space-time shift keying (STSK), the information is conveyed by both the spatial and time dimensions, which can be used to strike a trade-off between the diversity and multiplexing gains. On the other hand, orthogonal frequency division multiplexing (OFDM) relying on index modulation (IM) conveys information not only by the conventional signal constellations as in classical OFDM, but also by the indices of the subcarriers. In this paper compressed sensing(CS) is studied in order to increase throughput and bit-error performance by transmitting extra information bits in each subcarrier block as well as to decrease the complexity of the detector. In this paper, soft trellis decoding algorithm is implemented with channel estimation using Neuro-LS technique. The result analysis shows the better performance of trellis decoder with respect to BER and Neuro-LS channel estimation with respect to BER.

Multiple-Mode Orthogonal Frequency Division Multiplexing With Index Modulation

2017 ◽  
Vol 65 (9) ◽  
pp. 3892-3906 ◽  
Author(s):  
Miaowen Wen ◽  
Ertugrul Basar ◽  
Qiang Li ◽  
Beixiong Zheng ◽  
Meng Zhang
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Frequency Division Multiplexing ◽  
Frequency Division ◽  
Multiple Mode ◽  
Index Modulation
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