Interference Reduction in CDMA Channels: A Statistical-Mechanics Approach

被引:0
作者
Tanaka, Toshiyuki [1 ]
Kitagawa, Kouichiro [1 ]
机构
[1] Kyoto Univ, Grad Sch Informat, Sakyo Ku, Kyoto 6068501, Japan
来源
2008 6TH INTERNATIONAL SYMPOSIUM ON MODELING AND OPTIMIZATION IN MOBILE, AD HOC AND WIRELESS NETWORKS AND WORKSHOPS, VOLS 1 AND 2 | 2008年
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中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
Statistical mechanics-based approach to studying wireless communication systems is useful not only in analyzing theoretical performance of a given model, but also in optimizing design of a class of system models. In this paper, we demonstrate usefulness of statistical-mechanics approach in the problem of optimizing a spreading sequence set of randomly-spread code-division multiple-access (CDMA) communication systems. It has been shown that the optimal spreading sequences of a randomly spread CDMA channel in the large-system limit are Welch-bound-equality sequence sets, even when a non-Gaussian input distribution is assumed.
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页码:563 / 568
页数:6
相关论文
共 13 条
[1]   New scaling of Itzykson-Zuber integrals [J].
Collins, Benoit ;
Sniady, Piotr .
ANNALES DE L INSTITUT HENRI POINCARE-PROBABILITES ET STATISTIQUES, 2007, 43 (02) :139-146
[2]  
Dembo A., 2010, Large Deviations Techniques and Applications
[3]   A Fourier view on the R-transform and related asymptotics of spherical integrals [J].
Guionnet, A ;
Maïda, M .
JOURNAL OF FUNCTIONAL ANALYSIS, 2005, 222 (02) :435-490
[4]   Randomly spread CDMA:: Asymptotics via statistical physics [J].
Guo, DN ;
Verdú, S .
IEEE TRANSACTIONS ON INFORMATION THEORY, 2005, 51 (06) :1983-2010
[5]   PLANAR APPROXIMATION .2. [J].
ITZYKSON, C ;
ZUBER, JB .
JOURNAL OF MATHEMATICAL PHYSICS, 1980, 21 (03) :411-421
[6]  
KITAGAWA K, 2008, IEEE INT S INF UNPUB
[7]  
Marchenko VA., 1967, MATEMATICHESKII SBOR, V114, P507
[8]  
MASSEY JL, 1993, SEQUENCES, V2
[9]   OPTIMUM SEQUENCE MULTISETS FOR SYNCHRONOUS CODE-DIVISION MULTIPLE-ACCESS CHANNELS [J].
RUPF, M ;
MASSEY, JL .
IEEE TRANSACTIONS ON INFORMATION THEORY, 1994, 40 (04) :1261-1266
[10]   Analysis of CDMA systems that are characterized by eigenvalue spectrum [J].
Takeda, K. ;
Uda, S. ;
Kabashima, Y. .
EUROPHYSICS LETTERS, 2006, 76 (06) :1193-1199