Title :
VHDL Based FPGA Implementation of 256-ary PPM for Free Space Optical Links
Author :
Muhammad, S. Sheikh ; Brandl, P. ; Leitgeb, E. ; Koudelka, O. ; Jelovcan, I.
Author_Institution :
Inst. of Broadband Commun., Graz
Abstract :
As the interest in the deployment of Free Space Optical (FSO) links gains momentum, its becoming important to investigate the implementation of proposed higher state modulation schemes. M-ary PPM promises significant performance enhancement and this paper gives results about an experimental VHDL based FPGA implementation of a 256-ary PPM modem. The discussed chip design proves the capability of M-ary PPM as an implementable solution for future FSO systems. This preliminary design provides a suitable starting point for an integrated solution in the next generation FSO systems.
Keywords :
field programmable gate arrays; hardware description languages; optical links; pulse position modulation; 256-ary PPM modem; FPGA; M-ary PPM; VHDL; chip design; field programmable gate arrays; free space optical link; pulse position modulation; Clocks; Field programmable gate arrays; Optical fiber communication; Optical modulation; Optical pulses; Optical receivers; Optical transmitters; Pulse modulation; Synchronization; Timing; FPGA implementation; Free Space Optics (FSO); M-ary PPM;
Conference_Titel :
Transparent Optical Networks, 2007. ICTON '07. 9th International Conference on
Conference_Location :
Rome
Print_ISBN :
1-4244-1249-8
Electronic_ISBN :
1-4244-1249-8
DOI :
10.1109/ICTON.2007.4296273
