红外双幅度脉冲间隔调制通信系统性能分析

张凯; 张海涛; 巩马理; 闫平; 杨欣; 姜丰; 金伟

红外与毫米波学报, 2003, 22 (6): 411, 网络出版: 2006-05-10

红外双幅度脉冲间隔调制通信系统性能分析

PERFORMANCE OF DUAL-AMPLITUDE PULSE INTERVAL MODULATION FOR WIRELESS INFRARED COMMUNICATIONS

论文大纲

张凯张海涛巩马理闫平杨欣姜丰金伟

作者单位

清华大学精密仪器系数字光电实验室,北京,100084

无线红外通信调制功率谱密度. wireless infrared communications modulation DAPIM DAPIM power spectral.

摘要

提出一种新的调制方法--双幅度脉冲间隔调制(DAPIM).研究了采用该调制方法的红外通信系统在加性高斯白噪声情况下的性能,对DAPIM的符号结构、带宽、功率谱和误码率特性等方面进行了分析,并与开关键控(OOK)、脉冲位置调制(PPM)和脉冲间隔调制(PIM)等调制方式做了比较.DAPIM具有较好的带宽和功率综合特性.对于DAPIM,符号位数M=5或6是较好的选择.

Abstract

A novel dual-amplitude pulse interval modulation (DAPIM) for optical wireless communications is discussed. The symbol structure, the spectral properties, the bandwidth requirement and error performance of DAPIM in a nondispersive channel are presented. DAPIM shows a better compromise between bandwidth and power requirements compared with OOK, PPM, and PIM. DAPIM with 5 bits and 6 bits persymbol is attractive in terms of optical power and bandwidth requirements.

参考文献

[1] Kahn M J, Barry R J. Wireless infrared communications. Proceedings of the IEEE, 1997, 85(2): 265-298

[2] Ghassemlooy Z, Hayes A R. Digital pulse interval modulation for IR communications systems, a review. Int. J. Commun. Syst.,special issue, 2000, 13: 519-536

[3] Proakis G J. Digital Communications. 3rd ed. New York: McGraw-Hill, 1995. 201-206, 254-272

[4] Hayes A R, Ghassemlooy Z, Hayes A R, et al. Base-line wander on the performance of digital pulse-interval modulation. IEE Proc.-Optoelectron, 2000, 147(4): 295-300

张凯, 张海涛, 巩马理, 闫平, 杨欣, 姜丰, 金伟. 红外双幅度脉冲间隔调制通信系统性能分析[J]. 红外与毫米波学报, 2003, 22(6): 411. 张凯, 张海涛, 巩马理, 闫平, 杨欣, 姜丰, 金伟. PERFORMANCE OF DUAL-AMPLITUDE PULSE INTERVAL MODULATION FOR WIRELESS INFRARED COMMUNICATIONS[J]. Journal of Infrared and Millimeter Waves, 2003, 22(6): 411.

红外双幅度脉冲间隔调制通信系统性能分析

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