期刊文献+

无背景噪声时光多输入多输出系统的信道容量 被引量:5

Channel Capacity of Optical Multiple Input Multiple Output System without Background Noise
原文传递
导出
摘要 信道容量是通信系统能够达到的最大传输速率,是衡量通信系统通信能力的重要指标之一。在建立了光多输入多输出(MIMO)的信道模型之后,结合脉冲位置调制(PPM)分析了光MIMO系统的平均容量和中断容量;在无背景辐射的条件下,分别推导出了有无衰落时光MIMO平均容量封闭形式的近似表达式。在相同发射功率和传输带宽条件下,得到了光MIMO技术能成倍提高现有系统信道容量的结论。通过Monte Carlo仿真实验进一步证明了理论的正确性。 Channel capacity is the maximal transmission ratio of the communication system. It is one of the important indexes to measuring system communication ability. The channel model of the optical multi-in and multi- out (MIMO) system is established, then the ergodic channel capacity and outage capacity of optical MIMO system are analyzed by combining pulse position modulation (PPM). And then, the in-closed approximate expressions of ergodic channel capacity are deduced with and without fading in that the channel capacity of optical MIMO system can be the case of no background radiation, respectively. It shows doubly raised under the condition of same sending power and bandwidth. Its feasibility is confirmed using Monte Carlo simulation experiment
出处 《光学学报》 EI CAS CSCD 北大核心 2012年第3期28-33,共6页 Acta Optica Sinica
基金 甘肃省自然科学基金(0914ZTB097) 甘肃省高校基本科研业务费项目(1114ZTC142)资助课题
关键词 无线光通信 多输入多输出 脉冲位置调制 信道容量 wireless optical communication multi-in and multi-out (MIMO) pulse-position modulation (PPM) channel capacity
作者简介 王惠琴(1972-),女,博士,教授,主要从事大气激光通信及光MIMO技术。E-mail:15117024169@139.corn0306003-1
  • 相关文献

参考文献18

  • 1I.B.Djordjevic.LDPC-coded MIMO optical communication overthe atmospheric turbulence channel using Q-ary pulse-positionmodulation[J].Opt.Express,2007,15(16):10026-10032.
  • 2S.G.Wilson,M.Brandt-Pearce,Q.Cao et al..Optical MIMOtransmission with Q-ary PPM for atmosphere channel[J].IEEEJ.Sel.Areas.Commum.,2003,23(9):1090-1094.
  • 3J.Tomazl,J.Igor,S.S.Muhammed.Simplified soft valueextraction for M-PPM-modulated signals in FSO systems[C].International Journal of Electronics and Communications,2009,63(7):595-599.
  • 4胡昊,王红星,周旻,张铁英,刘敏.湍流大气中脉冲位置调制和数字脉冲间隔调制差错性能的建模与分析[J].中国激光,2010,37(5):1269-1274. 被引量:19
  • 5程刚,王红星,孙晓明,张铁英.无线光通信双脉冲间隔调制方法[J].中国激光,2010,37(7):1750-1755. 被引量:23
  • 6陈丹,柯熙政,屈菲.基于四进制频移键控调制的无线光通信同态滤波技术研究[J].中国激光,2011,38(2):137-141. 被引量:10
  • 7S.Stephanie,F.Damien,J.-V.Anne et al..LDPC code designand performance analysis on OOK chi-square-based opticalchannels[J].IEEE Photon.Technol.Lett.,2009,21(17):1190-1192.
  • 8I.B.Djordjevic,S.Denic,J.Anguita et al..LDPC-codedMIMO optical communication over the atmospheric turbulencechannel[J].J.Lightwave Technol.,2008,26(5):478-487.
  • 9S.Stéphanie,J.-V.Anne,C.Jean-Pierre.Soft decision LDPCdecoding over chi-square based optical channels[J].J.LightwaveTechnol.,2009,27(16):3540-3545.
  • 10K.Chitra,V.C.Ravichandran.Turbo-coding of coherencemultiplexed optical PPM CDMA system with balanced detection[J].Am.J.Appl.Sci.,2007,4(5):264-268.

二级参考文献55

共引文献75

同被引文献35

  • 1丁涛,许国良,张旭苹,陈佐龙.空间光通信中平台振动对误码率影响的抑制[J].中国激光,2007,34(4):499-502. 被引量:15
  • 2Bayaki E, Schober R, Mallik R K. Performance analysis of MIMO free-space optical systems in Gamma Gamma fading [J] IEEE Transactions on Communications, 2009, 57(11) : 3415-3424.
  • 3Wilson S G, Brandt-Pearce M, Cao Q, et al. Free-space optical MIMO transmission with Q-ary PPM [J]. IEEE Transmission on Communications, 2005, 53(8): 1402-1412.
  • 4Luong D A, Thang T C, Pham A T. Average capacity of MIMO/FSO systems with equal gain combining over log-normal channels[C]. International Conference on Ubiquitous and Future Network(ICUFN), 2013 : 306-309.
  • 5Andrews L C, Phillips R L. Laser beam propagation through random media[M]. Bellingham: SHE Press, 2005.
  • 6Anguita J A, Neifeld M A, Vasic B V. Spatial correlation and irradiance statistics in a multiple-beam terrestrial free-space optical communication link[J]. Applied Optics, 2007, 46(26): 6561-6571.
  • 7Zhu X M, Kahn J M. Free-space optical communication through atmospheric turbulence channels[J]. IEEE Transactions on Communications, 2002, 50(8): 1293-1300.
  • 8Chakraborty K, Dey S, Franceschetti M. Outage capacity of MIMO Poisson fading channels[J]. IEEE Transactions on Information Theory, 2008, 54(11) : 4887-4907.
  • 9Churnside J H, Clifford S F. Log-normal Rician probability density function of optical scintillations in the turbulent atmosphere[J]. Journal of the Optical Society of America A, 1987, 4(10) : 1923-1930.
  • 10Kim I I, Hakakha H, Adhikari P, et al. Scintillation reduction using multiple transmitters[C]. SPIE, 1997, 2990: 102- 113.

引证文献5

二级引证文献51

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部