[1] Wu BinWu Liang, Zou Cairong,. Adaptive modulation in MIMO optical wirelesscommunication systems [J]. Journal of Southeast University (English Edition), 2015, 31 (2): 175-180. [doi:10.3969/j.issn.1003-7985.2015.02.003]
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Adaptive modulation in MIMO optical wirelesscommunication systems(
)
多输入多输出无线光通信系统中的自适应调制技术
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 31
- Issue:
- 2015 2
- Page:
- 175-180
- Research Field:
- Information and Communication Engineering
- Publishing date:
- 2015-06-20
Info
- Title:
- Adaptive modulation in MIMO optical wirelesscommunication systems
- 多输入多输出无线光通信系统中的自适应调制技术
- Author(s):
- Wu BinWu Liang; Zou Cairong
- School of Information Science and Engineering, Southeast University, Nanjing 210096, China
- Keywords:
- optical wireless communication; multiple input and multiple output(MIMO); adaptive modulation
- PACS:
- TN92
- DOI:
- 10.3969/j.issn.1003-7985.2015.02.003
- Abstract:
- -
- 在基于强度调制、直接检测的多输入多输出无线光通信系统中, 为了保证发射信号非负特性, 提出一种基于直流偏置的自适应调制技术, 并且利用奇异值分解将多输入多输出信道转换为并行信道.此外, 提出一种基于QR分解、逐次干扰消除的自适应调制技术.在目标误比特率性能条件下, 利用QR分解、逐次干扰消除的特性将多输入多输出信道等效为并行信道.根据最大化可达速率的优化目标, 最优地给各个子信道分配功率.仿真结果表明所提出的2种自适应调制方法在保证误比特率性能和平均发射光功率恒定的前提下, 有效地提高了系统的传输速率.这2种自适应调制技术在利用多输入多输出技术空分复用增益的同时, 进一步提高了无线光通信系统的频谱利用率.
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Memo
- Memo:
-
Biographies: Wu Bin(1974—), male, graduate; Zou Cairong(corresponding author), male, doctor, professor, zoucairong@seu.edu.cn.
Foundation items: The National High Technology Research and Development Program of China(863 Program)(No.2013AA013601), the National Science and Technology Major Project of China(No.2015ZX03004009).
Citation: Wu Bin, Wu Liang, Zou Cairong. Adaptive modulation in MIMO optical wireless communication systems[J].Journal of Southeast University(English Edition), 2015, 31(2):175-180.[doi:10.3969/j.issn.1003-7985.2015.02.003]