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FPGA implementation of diversity and spatial multiplexing for MIMO free space optical interconnects
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http://hdl.handle.net/1860/3372
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| Title: | FPGA implementation of diversity and spatial multiplexing for MIMO free space optical interconnects |
| Authors: | Dumitru, Mihnea-Elian |
| Keywords: | Electric engineering
Mimo systems
Interconnects (Integrated circuit technology) |
| Issue Date: | 23-Sep-2010 |
| Abstract: | Current interconnect technology based on wired links is a viable solution in the short term only[17]. Wireless interconnects used in either the radio or optical spectrum su er from important design complexity constraints [10] [24] [23]. MIMO free space optical communications can be severely limited by optical crosstalk. Crosstalk is a cause of either very wide, unfocused beams of light, misalignment between transmitter and receiver elements, or both. To address this limitation, space-time codes, largely developed for radio frequency channels, have been adapted for use in a free space micro-optical interconnects system and are demonstrated in this thesis. Results quantify the bit-error rate performance and computational complexity of using space time coding for optical interconnects relative to conventional optical interconnect technologies.
Consequently, this thesis considers a hardware implementation of space-time coding techniques which sustains data integrity for free space micro-optical interconnects. Coding and decoding the data in a way speci c for wireless MIMO systems (adapted for use in optical communications) allows the system to take advantage of high optical bandwidth while introducing various levels of overhead and computational complexity. |
| URI: | http://hdl.handle.net/1860/3372 |
| Appears in Collections: | Drexel Theses and Dissertations
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