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High Data Rate Ultra Wideband Space Time Coded OFDM  

Lee Kwang-Jae (Hanlyo University)
Chen Hsiao-Hwa (National Sun Yat-Sen University)
Lee Moon-Ho (Chonbuk National University)
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Abstract
In this paper, we present a candidate high data rate space time coded OFDM system for short range personal networking. The system transmits the complex space time coded signals with a hybrid orthogonal frequency division multiplexing (OFDM) based on ultra wideband (UWB) pulses. The transmitted signals are sparse pulse trains modulated by a frequency selected from a properly designed set of frequencies. Additionally, a widely linear (WL) receive filter and a space time frequency transmission are designed by using two simple parallel linear detectors. To overcome the deeply fade in the propagation system, a beamforming combined with space time block codes also 따 e briefly discussed.
Keywords
UWB; Space Time Codes; OFDM; Space Time Frequency; Widely Linear Filter;
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