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Paper Details
Paper Title
Performance of STBC based Time Frequency Training OFDM and SC-FDMA with Adaptive Modulation
Authors
Yasmeen Kaur, Kamaldeep Kaur
Abstract
Orthogonal Frequency Division Multiplexing (OFDM) is high data rate transmission technique. Further, use of space-time block coding (STBC) to the OFDM system may help in combating severe effects of fading. In this paper, adaptive modulation based M-ary QAM,BPSK system applied to STBC based time frequency training OFDM and SC-FDMA is proposed and BER performances of all these digital modulation schemes have been compared. The TFT-OFDM signal is trained in both time and frequency domain by appending the training sequence and by inserting the grouped pilots, respectively.Such structure helps in providing better spectral efficiency and reliability.The spectral efficiency of the fixed modulation is constant, while it, in general, will increase with increasing channel SNRs for the adaptive scheme.
Keywords- OFDM, TFT-OFDM, fast fading channel, space time block coding,Adaptive modulation
Publication Details
Unique Identification Number - IJEDR1503029Page Number(s) - Pubished in - Volume 3 | Issue 3 | July 2015DOI (Digital Object Identifier) - Publisher - IJEDR (ISSN - 2321-9939)
Cite this Article
Yasmeen Kaur, Kamaldeep Kaur, "Performance of STBC based Time Frequency Training OFDM and SC-FDMA with Adaptive Modulation", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.3, Issue 3, pp., July 2015, Available at :http://www.ijedr.org/papers/IJEDR1503029.pdf
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