Iterative Channel Estimation Scheme for the WLAN Systems with the Multiple-Antenna Receivers

Abstract:

Alleviate the multipath delay spread and suitable for broadband transmission efficiency, orthogonal frequency division multiplexing wireless local area network (WLAN) is widely used to assist inverse fast Fourier transform and fast Fourier transform operation domain. Orthogonal frequency division multiplexing is a blow to the broadcast channel multipath fading and high data throughput, transmission, wireless fading channel method, which is widely used to support high performance bandwidth-efficient wireless multimedia services. Several times in the transmitter and receiver antenna technology allows data transfer rate and spectrum efficiency and the use of multiple transmit antennas and multiple receive antennas through spatial processing. High-precision channel estimation scheme is very important wideband multi-carrier orthogonal frequency complex WLAN systems use multiple antenna receiver based division of labor and the overall multi-carrier orthogonal frequency multiplexing division of performance-based WLAN system is to crucial antenna to receive the symbol error rate. In this article, the iterative channel estimation scheme proposed multi-carrier orthogonal frequency division multiplexed using multiple antennas receiver-based WLAN system.

• Periodical: Advanced Engineering Forum (Volumes 6-7)
• Pages: 871-875
• DOI: https://doi.org/10.4028/www.scientific.net/AEF.6-7.871
• Online since: September 2012
• Authors: Zi Wei Zheng
• Keywords: Channel Estimation, Orthogonal Frequency Division Multiplexing (OFDM), Wireless Local Area Network (WLAN)

References

[1] WLAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: High-Speed Physical Layer extension in the 2. 4 GHz band,. IEEE 802. 11b, (1999).

DOI: 10.1109/ieeestd.1999.90606

[2] WLAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: High-Speed Physical Layer in the 5 GHz Band,. IEEE 802. 11a. (1999).

DOI: 10.1109/ieeestd.1999.90606

[3] WLAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Further Higher Data Rate Extension in the 2. 4 GHz Band,. IEEE 802. 11g. (2003).

DOI: 10.1109/ieeestd.2006.248692

[4] IEEE 802. 11 Task Group n, Channel Model, May (2004).

[5] IEEE 802. 11 Task Group n, Usage Models, rev. 19, May (2004).

[6] IEEE 802. 11n-2009—Amendment 5: Enhancements for Higher Throughput. IEEE-SA. 29 Oct., (2009).

[7] Part 16: Air Interface for Fixed Broadband Wireless Access Systems. Amendment 2: Medium Access Control Modifications and Additional Physical Layer Specifications for 2-11 GHz,. IEEE 802. 16a. (2003).

DOI: 10.1109/ieeestd.2003.94247

[8] Multiband OFDM physical Layer Proposal for IEEE 802. 15 task Group 3a,. IEEE 802. 15. 3a. (2003).

[9] C. F. Wu, M. T. Shiue and C. K. Wang, Joint Carrier Synchronization and Equalization Algorithm for Packet-Based OFDM Systems Over the Multipath Fading Channel, IEEE Trans. Vehicul. Technology, Vol. 58, No. 9, pp.248-260, (2009).

DOI: 10.1109/tvt.2009.2029550

[10] J. Choi. Adaptive and Iterative Signal Processing in Communications. Cambridge, U.K.: Cambridge University Press, (2006).