Channel Estimation with a New Preamble Structure for a MIMO OFDM-Based WLAN System

Jihyung KIM  Sangho NAM  Dongjun LEE  Jonghan KIM  Jongae PARK  Daesik HONG  

IEICE TRANSACTIONS on Communications   Vol.E91-B   No.2   pp.649-652
Publication Date: 2008/02/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.2.649
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
MIMO,  preamble design,  channel estimation,  backward compatibility,  802.11a,  

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In this letter, we propose a new preamble structure for channel estimation in a MIMO OFDM-based WLAN system. Both backward compatibility with IEEE 802.11a and low overhead are considered in designing the preamble. Simulation results show that the proposed preamble has low overhead and good performance gain for channel estimation.