Channel Estimation for Two-Way Relay OFDM Networks. (25th July 2010)

• Record Type: Journal Article
• Authors: Yang, Weiwei; Cai, Yueming; Hu, Junquan; Yang, Wendong
• Other Names: Dong Xiaodai Academic Editor.
• Is Part Of: EURASIP journal on wireless communications and networking. Volume 2010(2010)
• Publication Date: 2010-07-25
• Subjects: Wireless communication systems -- Periodicals; Signal processing -- Periodicals; 621.38405
• DOI: 10.1155/2010/186182
• Languages: English
• ISSNs: 1687-1499

Abstract

Abstract : We consider the channel estimation for two-way relay OFDM networks. We proposed an LS-based channel estimation algorithm under block-based training schemes. Based on the mean square error (MSE) criterion, the condition and the design method for optimal training sequences are discussed. To reduce peak-to-average power ratio (PAPR), a special sequence called Zadoff-Chu sequence is employed to design the optimal training sequence, which can achieve both minimum MSE performance and excellent PAPR performance.