The Application of Partial Response Window in OFDM Systems without Guard Interval

Abstract:

The guard interval (GI) filling with cyclic prefix (CP) is inserted in the conventional orthogonal frequency division multiplexing (OFDM) system in order to be free of the inter-symbol interference (ISI). The frequency spectrum leakage out of band is mitigated by using the time-domain windowing method. Meanwhile, the GI-free OFDM have been studied in order to achieve high efficiency of bandwidth usage. This paper addresses the windowing method of partial response function for this case. It is shown that the information data can be detected precisely and the frequency spectrum leakage is mitigated without loss of bandwidth efficiency.

• Periodical: Applied Mechanics and Materials (Volume 610)
• Pages: 867-877
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.610.867
• Online since: August 2014
• Authors: Li Jun Zhang*, Yu Wang, Qiu Yu Zhu
• Keywords: Guard Interval, OFDM, Partial Response Window

References

[1] J. G. Proakis, Digital Communications, 4nd ed. New York: McGraw-Hill, (2001).

[2] Yi Sun, Bandwidth-efficient wireless OFDM, IEEE Journal on Selected Areas in Communications - JSAC , vol. 19, no. 11, pp.2267-2278, (2001).

DOI: 10.1109/49.963812

[3] X. Wang, P. Ho, and Y. Wu, Robust channel estimation and ISI cancellation for OFDM systems with suppressed features, IEEE J. Sel. Areas Commun., vol. 23, no. 5, pp.963-972, May (2005).

DOI: 10.1109/jsac.2005.845408

[4] I. Kanaras, Spectrally Efficient FDM Signals: Bandwidth Gain at the Expense of Receiver Complexity, IEEE International Conference on Communications - ICC , pp.1-6, (2009).

DOI: 10.1109/icc.2009.5199477

[5] Arsenia Chorti, Ioannis Kanaras, Miguel R. D. Rodrigues, Izzat Darwazeh, Joint channel equalization and detection of Spectrally Efficient FDM signals, IEEE International Symposium on Personal, Indoor and Mobile Radio Communications - PIMRC , pp.177-182, (2010).

DOI: 10.1109/pimrc.2010.5671644

[6] Umut Yunus, Hai Lin, Katsumi Yamashita, A Novel Equalization Method for OFDM Systems without Guard Interval, Global Telecommunications Conference, . GLOBECOM . IEEE - GLOBECOM , pp.1-5, (2010).

DOI: 10.1109/glocom.2010.5683577

[7] Hua Zhang, Ye Li, Optimum Frequency-Domain Partial Response Encoding in OFDM System, IEEE Transactions on Communications - TCOM , vol. 51, no. 7, pp.1064-1068, (2003).

DOI: 10.1109/tcomm.2003.814203

[8] Yang Zhang, Jiandong Li and Lihua Pang, A Scheme for Cancelling Intercarrier Interference using Partial Response Encoding for MIMO-OFDM Systems,  IEEE International Symposium on Personal, Indoor and Mobile Radio Communications - PIMRC , pp.241-245, (2009).

DOI: 10.1109/pimrc.2009.5449737

[9] Y. Zhao, J. -D. Leclercq, and S. -G. Häggman, Intercarrier interference compression in OFDM communication systems by using correlative coding, IEEE Commun. Lett., vol. 2, p.214–216, Aug. (1998).

DOI: 10.1109/4234.709435

[10] Y. Zhao and S. G. Häggman, Intercarrier interference self-cancellation scheme for OFDM mobile communication systems, IEEE Trans. Commun., vol. 49, p.1185–1191, July (2001).

DOI: 10.1109/26.935159