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A frequency domain equalization for multipath fading is widely used for OFDM systems and accurate channel estimation is required. In conventional OFDM systems, pilot symbols are inserted periodically in time and frequency domain by a transmitter for channel estimation. Channel estimation error is quite large, especially in frequency-selective fading channel, because the estimates are interpolated...
Multilateration (MLAT) systems, which receive and decode the signals such as SSR (Secondary Surveillance Rader) Mode S reply or extended squitter in airport surface, have problems in decoding performance due to not only asynchronous interference from other aircraft, but also multipath caused by reflection from buildings and other surroundings. This paper proposes a Mode S receiver with equalization...
SC-OFDM (single carrier orthogonal frequency division multiplexing) has received considerable attention in recent years due to its low peak power and robust performance against multipath fading channels. There are emerging demands in a variety of wireless communication systems to transmit multiple SC-OFDM signals in different channels to improve bandwidth efficiency. However, the peak power of such...
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