Pilot Design for IEEE 802.16 OFDM and OFDMA

Author

Baxley, Robert J. ; Kleider, J.E. ; Zhou, G. Tong

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

2

fYear

2007

fDate

15-20 April 2007

Abstract

In this paper we apply a new pilot design optimization technique to the IEEE 802.16a wireless MAN standard. Using the specifications from 802.16a, we demonstrate that significant SER improvements are possible for 802.16a in a Rayleigh fading channel by judiciously choosing where the pilots are placed and the power contained in each pilot. Specifically, for the OFDM mode, we show that up to 13 dB SNR improvement is possible by simply modifying the pilots. For the OFDMA mode we demonstrate that a more modest but still significant improvement of 1.8 dB is possible with proper pilot design.

Keywords

OFDM modulation; Rayleigh channels; WiMax; frequency division multiple access; optimisation; 13 dB; IEEE 802.16 OFDM; IEEE 802.16a wireless MAN standard; OFDMA; Rayleigh fading channel; SER; SNR; pilot design optimization technique; Channel estimation; Design engineering; Design optimization; Discrete Fourier transforms; Error analysis; Nonlinear dynamical systems; OFDM modulation; Space technology; USA Councils; Wireless communication; Orthogonal frequency division multiplexing (OFDM); pilot design; pilot symbol assisted modulation (PSAM);

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on

Conference_Location

Honolulu, HI

ISSN

1520-6149

Print_ISBN

1-4244-0727-3

Type

conf

DOI

10.1109/ICASSP.2007.366237

Filename

4217410