Performance of Walsh-Hadamard Code Division Multiplexing in Helicopter Satellite Communications

被引：0
|
作者：
Kojima, Toshiharu [1 ]
Fujiwara, Shuri [1 ]
机构：
[1] Univ Electrocommun, Grad Sch Informat & Engn, Chofu, Tokyo 1828585, Japan
来源：
2015 INTERNATIONAL CONFERENCE ON ADVANCED TECHNOLOGIES FOR COMMUNICATIONS (ATC) | 2015年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
One of the most important problems in helicopter satellite communications is the periodic blockage of the received signal caused by rotor blades. Code division multiplexing (CDM) has an implicit time diversity effect overcoming the periodic blockage. Performance of CDM employing Walsh-Hadamard code (WHCDM) under the periodic blockage environment is investigated in this paper. First, we show that a simple WHCDM scheme has the implicit time diversity effect by computer simulation. Next, a WHCDM scheme combined with explicit time diversity is proposed. The proposed scheme improves the bit error rate performance of the conventional time diversity scheme in high speed data transmission.
引用
收藏
页码：662 / 665
页数：4
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