A Study on Improving the System Performance for Wireless Personal Area Networks

Bon-Wook KOO  Jee-Hoon KIM  Hyoung-Kyu SONG  

Publication
IEICE TRANSACTIONS on Communications   Vol.E91-B   No.7   pp.2413-2417
Publication Date: 2008/07/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.7.2413
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
MB-OFDM,  Zadoff-Chu seqeunce,  multiple antennas,  channel estimation,  

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Summary: 
An enormous amount of multimedia data will be transmitted by various devices connected to the wireless personal area network, and this network environment will require very high transmission capacity. In this letter, we apply multiple antennas to the MB-OFDM UWB system for high performance. With an emphasis on a preamble design for multi-channel separation, we address the channel estimation in the MB-OFDM system with multiple antennas. By properly designing each preamble so that the multiple antennas remain orthogonal in the time domain, the channel estimation can be applied to the MB-OFDM specification in the case of more than 2 transmit antennas. By using the multiple-antenna scheme and proposed channel estimation technique, the reliability and performance of the MB-OFDM system can be improved.