BER Analysis of a Hybrid Modulation Scheme Based on PPM and MSK Subcarrier Intensity Modulation
BER Analysis of a Hybrid Modulation Scheme Based on PPM and MSK Subcarrier Intensity Modulation
复制标题
基于 PPM 和 MSK 子载波强度调制的混合调制方案的 BER 分析
DOI：
10.1109/jphot.2015.2449265
复制
发表时间：
2015-06
影响因子：
2.4
通讯作者：
Qiao Yaojun
中科院分区：
文献类型：
--
作者：
Liu Hongzhan;Liao Renbo;Wei Zhongchao;Hou Zhiyun;Qiao Yaojun
为了改善采用二进制相移键控副载波强度调制(BPSK-SIM)的自由空间光(FSO)通信系统的误码率性能，提出了一种基于脉冲位置调制(PPM)和最小移位键控(MSK)副载波强度调制的混合调制方案PPM-MSK-SIM。随后，详细研究了PPMMSK-SIM在对数正态湍流信道和雪崩光电二极管检测的FSO系统中的误码性能。数值仿真结果表明，与BPSK-SIM和PPM相比，PPM-MSK-SIM具有提高误码率性能的优势。例如，在相同的接收辐照度-2.1dBm和相同的湍流强度C2n1/4 7.5×10-15m-2/3下，2-PPMMSK-SIM的误码率性能可以降低到1.02×10-9，而2-PPM和BPSK-SIM的误码率性能分别只有1.19×10-7和2.29×10-6。这使得PPM-MSK-SIM成为FSO通信系统中调制技术的有利候选者。
In order to improve the bit-error-rate (BER) performance of free-space optical (FSO) communication systems employing binary phase-shift keying subcarrier intensity modulation (BPSK-SIM), an innovative hybrid modulation scheme called PPM-MSK-SIM is proposed, which is based on pulse position modulation (PPM) and minimum shift keying (MSK) subcarrier intensity modulation. Subsequently, the BER performance of PPMMSK-SIM is studied in detail for an FSO system over log-normal turbulence channels with avalanche photodiode detection. The results of the numerical simulation show that PPM-MSK-SIM has the advantages of improving the BER performance compared with BPSK-SIM and PPM. For example, at the same received irradiance of -2.1 dBm and the same strength of turbulence C2n 1/4 7.5 × 10-15 m-2/3, the BER performance of 2-PPMMSK-SIM can decrease to 1.02 × 10-9, whereas those of 2-PPM and BPSK-SIM are just 1.19 × 10-7 and 2.29 × 10-6, respectively. This makes PPM-MSK-SIM a favorable candidate for the modulation technique in FSO communication systems.
登录
查看更多内容
DOI：
10.1002/0471219282.eot165
发表时间：
2003-04
期刊：
Proc. IEEE
影响因子：
--
作者：
J. Kahn;J. Barry
通讯作者：
J. Kahn;J. Barry
影响因子：
1.9
作者：
Brian R. Strickland;Michael J. Lavan;Eric L. Woodbridge;Victor J. Chan
通讯作者：
Brian R. Strickland;Michael J. Lavan;Eric L. Woodbridge;Victor J. Chan
影响因子：
1.6
作者：
Luong, Duy A.;Thang, Truong C.;Pham, Anh T.
通讯作者：
Pham, Anh T.
影响因子：
1.3
作者：
Renbo Liao;Hongzhan Liu;Yaojun Qiao
通讯作者：
Renbo Liao;Hongzhan Liu;Yaojun Qiao
影响因子：
3.8
作者：
W. Lim;Changho Yun;Kiseon Kim
通讯作者：
W. Lim;Changho Yun;Kiseon Kim