TY - GEN
T1 - Multipath diversity and channel estimation using time-varying chirps in CDMA systems with unknown CSI
AU - Shen, Hao
AU - Papandreou-Suppappola, Antonia
N1 - Publisher Copyright:
© 2003 IEEE.
PY - 2003
Y1 - 2003
N2 - In this paper, we propose the use of wideband chirp signals in modulation schemes that combine multiuser detection with multipath diversity in frequency selective fading channels with known channel state information (CSI). We achieve this by appropriately designing the chirp parameters. For channels with unknown CSI, we also show that good channel estimation can be obtained, even in fast varying channels, with reduced interference by transmitting pilot chirp signals simultaneously with the users information.
AB - In this paper, we propose the use of wideband chirp signals in modulation schemes that combine multiuser detection with multipath diversity in frequency selective fading channels with known channel state information (CSI). We achieve this by appropriately designing the chirp parameters. For channels with unknown CSI, we also show that good channel estimation can be obtained, even in fast varying channels, with reduced interference by transmitting pilot chirp signals simultaneously with the users information.
KW - Channel estimation
KW - Channel state information
KW - Chirp modulation
KW - Fading
KW - Frequency diversity
KW - Interference
KW - Multiaccess communication
KW - Multiuser detection
KW - Time varying systems
KW - Wideband
UR - http://www.scopus.com/inward/record.url?scp=59949088856&partnerID=8YFLogxK
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U2 - 10.1109/SSP.2003.1289413
DO - 10.1109/SSP.2003.1289413
M3 - Conference contribution
AN - SCOPUS:59949088856
T3 - IEEE Workshop on Statistical Signal Processing Proceedings
SP - 335
EP - 338
BT - Proceedings of the 2003 IEEE Workshop on Statistical Signal Processing, SSP 2003
PB - IEEE Computer Society
T2 - IEEE Workshop on Statistical Signal Processing, SSP 2003
Y2 - 28 September 2003 through 1 October 2003
ER -