RIS ID
22213
Abstract
In this paper, we present a new type of packet preamble for orthogonal frequency division multiplexing (OFDM) systems that is based on a complementary sequence pair. It is shown how this approach permits a receiver to dynamically choose between frequency-domain equalization (FDE) and timedomain equalization (TDE). With FDE offering a low-complexity zero-forcing (ZF) equalization and TDE facilitating easy minimum mean square error (MMSE) estimation, it is concluded that a spectrally-flattened complementary sequence pair offers an outstanding combination of flexibility and performance.
Publication Details
This conference paper was originally published as Lowe, D, Huang, X, Complementary Channel Estimation and Synchronization for OFDM, 2nd International Wireless Broadband and Ultra Wideband Communications Auswireless 2007, 27-30 Aug, 23-23.