Affine precodino for hidden pilot desion for MIMO-OFDMA systems

Author

Byung Wook Wim ; Park, Dong-Jo ; Jung, Sung-Yoon

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea

Volume

3

fYear

2010

fDate

26-28 Feb. 2010

Firstpage

168

Lastpage

172

Abstract

This paper deals with a new hidden pilot scheme using a precoder in multiple-input multiple-output (MIMO) orthogonal frequency division multiple access (OFDMA) systems in order to improve bandwidth efficiency. With the aid of the hidden pilot scheme, it is possible to estimate the channel without loss of bandwidth. In this paper, we show that the inevitable unknown data interference of the hidden pilot which degrades the performance of channel estimation can be successively reduced by the precoder decision with an iterative scheme. Computer simulations are presented where the proposed scheme is compared with the conventional method in terms of channel estimation, BER, bandwidth efficiency.

Keywords

MIMO communication; OFDM modulation; affine transforms; channel estimation; frequency division multiple access; interference (signal); precoding; MIMO-OFDMA Systems; affine precoding; channel estimation; data interference; hidden pilot decision; multiple input multiple output orthogonal frequency division multiple access; Bandwidth; Channel estimation; Data engineering; Design engineering; MIMO; OFDM; Power engineering and energy; Receiving antennas; Transmitting antennas; Wireless communication; MIMO-OFDMA; bandwidth efficiency; hidden pilot; precodino;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer and Automation Engineering (ICCAE), 2010 The 2nd International Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4244-5585-0

Electronic_ISBN

978-1-4244-5586-7

Type

conf

DOI

10.1109/ICCAE.2010.5452022

Filename

5452022