TY - GEN
T1 - Wireless CDMA communications using time-varying signals
AU - Gupta, Charu
AU - Papandreou-Suppappola, Antonia
PY - 2001/1/1
Y1 - 2001/1/1
N2 - We propose to use time-varying signals in code division multiple access (CDMA) techniques for wireless communication channels. Specifically, we employ linear FM chirp signaling in a frequency hopped (FH) CDMA system with additive white Gaussian noise (AWGN). Every user is characterized not only by a unique pseudonoise (PN) sequence but also by a unique set of chirp rates. Our multirate chirp (MRC) FH-CDMA system has been motivated by the inherent resistance of chirp signals against AWGN. We demonstrate that our system is bandwidth efficient and resistant against AWGN. Simulations successfully demonstrate the increase in performance of the new method as compared to frequency shift keying (FSK) FH-CDMA.
AB - We propose to use time-varying signals in code division multiple access (CDMA) techniques for wireless communication channels. Specifically, we employ linear FM chirp signaling in a frequency hopped (FH) CDMA system with additive white Gaussian noise (AWGN). Every user is characterized not only by a unique pseudonoise (PN) sequence but also by a unique set of chirp rates. Our multirate chirp (MRC) FH-CDMA system has been motivated by the inherent resistance of chirp signals against AWGN. We demonstrate that our system is bandwidth efficient and resistant against AWGN. Simulations successfully demonstrate the increase in performance of the new method as compared to frequency shift keying (FSK) FH-CDMA.
UR - http://www.scopus.com/inward/record.url?scp=0037766816&partnerID=8YFLogxK
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U2 - 10.1109/ISSPA.2001.949822
DO - 10.1109/ISSPA.2001.949822
M3 - Conference contribution
AN - SCOPUS:0037766816
SN - 0780367030
SN - 9780780367036
T3 - 6th International Symposium on Signal Processing and Its Applications, ISSPA 2001 - Proceedings; 6 Tutorials in Communications, Image Processing and Signal Analysis
SP - 242
EP - 245
BT - 6th International Symposium on Signal Processing and Its Applications, ISSPA 2001 - Proceedings; 6 Tutorials in Communications, Image Processing and Signal Analysis
PB - IEEE Computer Society
T2 - 6th International Symposium on Signal Processing and Its Applications, ISSPA 2001
Y2 - 13 August 2001 through 16 August 2001
ER -