Optimal discrete bit loading for DMT based constrained multicarrier systems

被引：19
|
作者：
Fasano, A [1 ]
Di Blasio, G [1 ]
Baccarelli, E [1 ]
Biagi, M [1 ]
机构：
[1] Univ Roma La Sapienza, Dept Info Com, I-00184 Rome, Italy
来源：
ISIT: 2002 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY, PROCEEDINGS | 2002年
关键词：
D O I：
10.1109/ISIT.2002.1023515
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this contribution we present the solution for the optimal discrete bit loading in multicarrier systems employing discrete multitone (DMT) modulation, when additional constraints on either the maximum allowable energy for each subchannel or the maximal cardinality of the QAM constellations to be used are given. Conditions for the optimality of greedy algorithms in this context are also provided. The solution is based on some results in matroid theory about combinatorial optimization.
引用
收藏
页码：243 / 243
页数：1
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