Unequal error protection based on OFDM and its application in digital audio transmission

被引：0
|
作者：
Ho, KP [1 ]
机构：
[1] Chinese Univ Hong Kong, Dept Informat Engn, Shatin, Peoples R China
来源：
GLOBECOM 98: IEEE GLOBECOM 1998 - CONFERENCE RECORD, VOLS 1-6: THE BRIDGE TO GLOBAL INTEGRATION | 1998年
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Orthogonal frequency division multiplexing (OFDM) can be used naturally and effectively to provide unequal error protection by properly allocating power and assigning constellation to each individual subchannel. The principle and algorithm of using power allocation is first reviewed and applied to digital audio as an example. MPEG-1 audio is transmitted through an OFDM system. it is found that OFDM with unequal error protection can achieve 4 to 6 dB of coding gain over a single-carrier sq,stem having the same bandwidth.
引用
收藏
页码：1320 / 1325
页数：6
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