Joint channel estimation and side information scheme for adaptively selected OFDM signals

Lei Wang, Hui Yang, Dongweon Yoon, Sang Kyu Park, Soobum Cho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Orthogonal Frequency Division Multiplexing (OFDM) is a special form of multi-carrier modulation which is robust against the multipath effect and inter symbol interference (ISI). However, it is very sensitive to nonlinear effects due to the high peak-toaverage power ratio (PAPR) owned by the transmitted signals. To reduce PAPR and improve the error performances of the OFDM signals over fading channels, an OFDM system in which Adaptive Symbol Selection Scheme (ASSS) and channel estimation are combined together can be used. The data rate is reduced somewhat in the conventional transmission method because the side information is transmitted with the data information. In order to increase data rate, we propose a new technique to transmit the side information separately in the pilot tones. We demonstrate that the proposed technique can give reasonable bit error rate (BER) performance over fading channels while effectively reducing the PAPR.

Original languageEnglish
Title of host publication2007 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2007
Pages275-278
Number of pages4
DOIs
StatePublished - 2007 Dec 1
Event2007 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2007 - Shanghai, China
Duration: 2007 Sep 212007 Sep 25

Other

Other2007 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2007
CountryChina
CityShanghai
Period07/09/2107/09/25

Fingerprint

Channel estimation
Orthogonal frequency division multiplexing
Fading channels
symbol
Multicarrier modulation
Bit error rate
performance
interference

Keywords

  • Adaptive symbol selection scheme
  • Clipping
  • Fading channels
  • OFDM
  • Side information

Cite this

Wang, L., Yang, H., Yoon, D., Park, S. K., & Cho, S. (2007). Joint channel estimation and side information scheme for adaptively selected OFDM signals. In 2007 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2007 (pp. 275-278). [4339850] https://doi.org/10.1109/WICOM.2007.75
Wang, Lei ; Yang, Hui ; Yoon, Dongweon ; Park, Sang Kyu ; Cho, Soobum. / Joint channel estimation and side information scheme for adaptively selected OFDM signals. 2007 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2007. 2007. pp. 275-278
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Wang, L, Yang, H, Yoon, D, Park, SK & Cho, S 2007, Joint channel estimation and side information scheme for adaptively selected OFDM signals. in 2007 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2007., 4339850, pp. 275-278, 2007 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2007, Shanghai, China, 07/09/21. https://doi.org/10.1109/WICOM.2007.75

Joint channel estimation and side information scheme for adaptively selected OFDM signals. / Wang, Lei; Yang, Hui; Yoon, Dongweon; Park, Sang Kyu; Cho, Soobum.

2007 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2007. 2007. p. 275-278 4339850.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Wang L, Yang H, Yoon D, Park SK, Cho S. Joint channel estimation and side information scheme for adaptively selected OFDM signals. In 2007 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2007. 2007. p. 275-278. 4339850 https://doi.org/10.1109/WICOM.2007.75