Filter Size Determination of Moving Average Filters for Extended Differential Detection of OFDM Preambles

Minjoong RIM  

Publication
IEICE TRANSACTIONS on Communications   Vol.E92-B   No.12   pp.3953-3956
Publication Date: 2009/12/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.3953
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDM,  preamble detection,  cell search,  differential detection,  moving average filter,  filter size,  

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Summary: 
OFDM (Orthogonal Frequency Division Multiplexing) is widely used in wideband wireless communication systems due to its excellent performance. One of the most important operations in OFDM receivers is preamble detection. This paper addresses a general form of extended differential detection methods, which is a combination of differential detection and a moving average filter. This paper also presents a filter size determination method that achieves satisfactory performance in various channel environments.