Multiuser Constrained Water-Pouring for Continuous-Time Overloaded Gaussian Multiple-Access Channels
作者： Joon Ho Cho
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摘要: In this paper, signature waveforms and signal powers are jointly optimized for multiuser communications over strictly bandlimited, continuous-time, overloaded channels corrupted by additive white Gaussian noise (AWGN). The total power is minimized subject to general asymmetric signal-to-interference-plus-noise ratio (SINR) constraints at the output of linear minimum mean-squared error (LMMSE) receivers. Using vectorized Fourier transform (VFT) technique, optimal solutions as well a necessary sufficient condition existence feasible solution derived in frequency domain. It turns out that every performs same frequency-division multiple-access (FDMA) system. A geometric procedure called constrained water-pouring developed construct possible solution, which profiles equivalent bandwidth are, respectively, those physical FDMA shown orthogonal assigned oversized users continuous-time equivalents generalized Welch bound equality (CTE-GWBE) sequences non-oversized users.
sci-hub.se 参考文章(43)
Savo Glisic, Branka Vucetic, Spread spectrum CDMA systems for wireless communications ,(1997)
Pingzhi Fan, Mike Darnell, Sequence design for communications applications Research Studies Press , John Wiley. ,(1996)
I. M. Jacobs, J. M. Wozencraft, Principles of Communication Engineering ,(1965)
Hans Sagan, Introduction to the Calculus of Variations ,(1969)
P.S. Kumar, S. Roy, Optimization for crosstalk suppression with noncoordinating users IEEE Transactions on Communications. ,vol. 44, pp. 894- 905 ,(1996) , 10.1109/26.508309
P. Viswanath, V. Anantharam, Optimal sequences and sum capacity of synchronous CDMA systems IEEE Transactions on Information Theory. ,vol. 45, pp. 1984- 1991 ,(1999) , 10.1109/18.782121
Jian Yang, S. Roy, On joint transmitter and receiver optimization for multiple-input-multiple-output (MIMO) transmission systems IEEE Transactions on Communications. ,vol. 42, pp. 3221- 3231 ,(1994) , 10.1109/26.339844
S. Waldron, Generalized Welch bound equality sequences are tight frames IEEE Transactions on Information Theory. ,vol. 49, pp. 2307- 2309 ,(2003) , 10.1109/TIT.2003.815788
J.H. Cho, W. Gao, Continuous-time equivalents of Welch bound equality sequences IEEE Transactions on Information Theory. ,vol. 51, pp. 3176- 3185 ,(2005) , 10.1109/TIT.2005.853323
G.S. Rajappan, M.L. Honig, Signature sequence adaptation for DS-CDMA with multipath IEEE Journal on Selected Areas in Communications. ,vol. 20, pp. 384- 395 ,(2002) , 10.1109/49.983359