Free Space Optic communications has received extensive interest over the past decade, and many potential applications for this technology have been suggested. Among various digital modulation formats for wireless optical links like OOK, PPM, DPIM and MDPIM, DPIM has got advantages in terms of transmission capacity, bandwidth requirement, power requirement and receiver design. DPIM displays a higher transmission capacity by eliminating all the unused time slots from within each symbol in PPM and result in decreased bandwidth requirement and possibility introducing some redundancy into the code for Security. Design of PPM receiver has more complexity compared to OOK and DPIM since both slot and symbol synchronizations are required at the receiver.
asghari varzaneh, A., & ghezel ayagh, M. H. (2012). Implementation of DPIM MODEM with FPGA and Comparison of its Functionality with PPM MODEM. Journal of Advanced Defense Science & Technology, 3(1), 39-47.
MLA
akbar asghari varzaneh; mohammad hossein ghezel ayagh. "Implementation of DPIM MODEM with FPGA and Comparison of its Functionality with PPM MODEM". Journal of Advanced Defense Science & Technology, 3, 1, 2012, 39-47.
HARVARD
asghari varzaneh, A., ghezel ayagh, M. H. (2012). 'Implementation of DPIM MODEM with FPGA and Comparison of its Functionality with PPM MODEM', Journal of Advanced Defense Science & Technology, 3(1), pp. 39-47.
VANCOUVER
asghari varzaneh, A., ghezel ayagh, M. H. Implementation of DPIM MODEM with FPGA and Comparison of its Functionality with PPM MODEM. Journal of Advanced Defense Science & Technology, 2012; 3(1): 39-47.
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