Performance Analysis of Pilot Based Channel Estimation Techniques in MB OFDM Systems

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Ultra Wide Band (UWB) communication is mainly used for short range of communication in wireless personal area networks. Orthogonal Frequency Division Multiplexing (OFDM) is being used as a key physical layer technology for Fourth Generation (4G) wireless communication. OFDM based communication gives high spectral efficiency and mitigates Inter-Symbol Interference (ISI) in a wireless medium. In this paper the IEEE 802.15.3a based Multi Band OFDM (MB OFDM) system is considered. The pilot based channel estimation techniques are considered to analyze the performance of MB OFDM systems over Liner Time Invariant (LTI) channel models

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