Multilevel codes and multistage decoding for unequal error protection

被引：0
|
作者：
Isaka, M [1 ]
Imai, H [1 ]
Morelos-Zaragoza, RH [1 ]
Fossorier, MPC [1 ]
Lin, S [1 ]
机构：
[1] Univ Tokyo, Inst Ind Sci, Minato Ku, Tokyo 1068558, Japan
来源：
1999 IEEE INTERNATIONAL CONFERENCE ON PERSONAL WIRELESS COMMUNICATIONS | 1999年
关键词：
D O I：
10.1109/ICPWC.1999.759626
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this paper, multilevel coded modulation with multistage decoding and unequal error protection is discussed. Three types of unconventional partitionings for 8-PSK and 16(64)-QAM constellations with UEP capabilities are analyzed. Based on the tight upper/approximated bounds on bit error probability, it is shown that more degrees of freedom in the construction of multilevel coding and multistage decoding can be accomplished by introducing asymmetries in PSK and QAM signal constellations. Generalizations to other PSK and QAM type constellations follow the same lines.
引用
收藏
页码：249 / 254
页数：6
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