Title :
Estimating channel response from pilot subcarrier pairs for OFDM systems
Author :
Huang, Aiping ; Zhao, Yuping
Author_Institution :
Inst. of Radio Commun., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
In orthogonal frequency division multiplexing mobile communication systems employing an intercarrier interference self-cancellation scheme, the pilot subcarriers employed for channel estimation appear in pairs and thus are nonuniformly distributed. A new channel estimation method based on pilot pairs and a polynomial reconstruction technique are proposed. The idea could be extended to more flexible pilot subcarrier arrangements, allowing rejection of unreliable received pilot signals in practice
Keywords :
frequency division multiplexing; interference suppression; mobile communication; OFDM systems; channel estimation method; channel response; intercarrier interference self-cancellation scheme; mobile communication systems; nonuniformly distributed pairs; pilot subcarrier pairs; polynomial reconstruction technique; AWGN; Additive white noise; Channel estimation; Fading; Frequency domain analysis; Frequency estimation; Interference; Mobile communication; OFDM modulation; Polynomials;
Conference_Titel :
Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on
Conference_Location :
Sacramento, CA
Print_ISBN :
0-7803-3694-1
DOI :
10.1109/MWSCAS.1997.662189
