TY - GEN
T1 - Prolate spheroidal wave functions induce Gaussian chip waveforms
AU - Jitsumatsu, Yutaka
AU - Kohda, Tohru
PY - 2008/9/29
Y1 - 2008/9/29
N2 - Slepian's prolate spheroidal wave function (PSWF) is optimum in energy concentration within given frequency bandwidth and time-width. However it is not employed in communications mainly because its inter-symbol interference is unfavorable. We show that introducing Markovian spreading codes makes PSWF be a strong candidate for the chip waveform in CDMA systems. For design tractability, Gaussian waveform is recommended.
AB - Slepian's prolate spheroidal wave function (PSWF) is optimum in energy concentration within given frequency bandwidth and time-width. However it is not employed in communications mainly because its inter-symbol interference is unfavorable. We show that introducing Markovian spreading codes makes PSWF be a strong candidate for the chip waveform in CDMA systems. For design tractability, Gaussian waveform is recommended.
UR - http://www.scopus.com/inward/record.url?scp=52349092059&partnerID=8YFLogxK
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U2 - 10.1109/ISIT.2008.4595210
DO - 10.1109/ISIT.2008.4595210
M3 - Conference contribution
AN - SCOPUS:52349092059
SN - 9781424422579
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 1363
EP - 1367
BT - Proceedings - 2008 IEEE International Symposium on Information Theory, ISIT 2008
T2 - 2008 IEEE International Symposium on Information Theory, ISIT 2008
Y2 - 6 July 2008 through 11 July 2008
ER -