Improvement of Ground to Satellite FSO Link Performance Using Transmit Diversity in Weak Atmospheric Turbulence
The performance of ground to satellite free space optical （FSO） communication link is degraded due to the presence of atmospheric turbulence that causes fluctuations in both intensity and phase of the received optical signal. In this paper, bit error rate （BER） performance of FSO link using transmit...
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| Veröffentlicht in: | Journal of communication and computer 2011, Vol.8 (1), p.63-70 |
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| creator | Kaushal, H Jain, V K Kar, S |
| description | The performance of ground to satellite free space optical （FSO） communication link is degraded due to the presence of atmospheric turbulence that causes fluctuations in both intensity and phase of the received optical signal. In this paper, bit error rate （BER） performance of FSO link using transmit diversity is investigated for coherent （sub-carrier BPSK and sub-carrier QPSK） and non-coherent （OOK and Q-PPM） modulation schemes in weak atmospheric turbulence channel. It is seen that multiple transmitting antennae help to overcome the turbulence induced fading effect. Further, sub-carrier BPSK modulation outperforms the other modulation schemes in terms of minimum SNR requirement for a given BER. Among non-coherent modulation schemes, Q-PPM performs better than OOK. However, as the level of Q in Q-PPM increases, its performance degrades and it becomes worse than OOK for certain values of atmospheric turbulence. Also, the effect of correlation among different transmitting antennae beams is analyzed on the link performance. |
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In this paper, bit error rate （BER） performance of FSO link using transmit diversity is investigated for coherent （sub-carrier BPSK and sub-carrier QPSK） and non-coherent （OOK and Q-PPM） modulation schemes in weak atmospheric turbulence channel. It is seen that multiple transmitting antennae help to overcome the turbulence induced fading effect. Further, sub-carrier BPSK modulation outperforms the other modulation schemes in terms of minimum SNR requirement for a given BER. Among non-coherent modulation schemes, Q-PPM performs better than OOK. However, as the level of Q in Q-PPM increases, its performance degrades and it becomes worse than OOK for certain values of atmospheric turbulence. 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Also, the effect of correlation among different transmitting antennae beams is analyzed on the link performance.</description><subject>Antennae</subject><subject>Atmospheric turbulence</subject><subject>Communication satellites</subject><subject>Degradation</subject><subject>Grounds</subject><subject>Links</subject><subject>Modulation</subject><subject>Satellites</subject><subject>Transmission</subject><issn>1548-7709</issn><issn>1930-1553</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNotj8FrwjAchcvYYM7tfwi77FRIkyZNj-KmEwQHduxYkviLZraJJqmw_96CO713-N6D7y6bFDXFecEYvR87K0VeVbh-zJ5i_MWYVZhWk8yv-lPwF-jBJeQNWgY_uB1KHm1lgq6zCdBiu0Fr647oC4LxoZdOA_qO1u1RE6SLvU3o3V4gRJv-kHXoB-QRzVLv4-kAwWrUDEENHYy75-zByC7Cy39Os2bx0cw_8_VmuZrP1rlmNcl3hgtqCsUYUbrUgmKJlTSsrFihCqOpwbLU2DCuSs6EkJJWmuidIAUBrmo6zd5ut6PceYCY2t5GPfpIB36IreC1KGvKyUi-3kh98G5_HqVaJfXR2A5ayrkoCS3oFY50ZH0</recordid><startdate>2011</startdate><enddate>2011</enddate><creator>Kaushal, H</creator><creator>Jain, V K</creator><creator>Kar, S</creator><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>7SC</scope><scope>7SP</scope><scope>8FD</scope><scope>H8D</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>2011</creationdate><title>Improvement of Ground to Satellite FSO Link Performance Using Transmit Diversity in Weak Atmospheric Turbulence</title><author>Kaushal, H ; Jain, V K ; Kar, S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c592-df683f1b552bc4c830a0baf54751b1fc3f0a4c0f56b46588aa37c2cd8212e6b93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Antennae</topic><topic>Atmospheric turbulence</topic><topic>Communication satellites</topic><topic>Degradation</topic><topic>Grounds</topic><topic>Links</topic><topic>Modulation</topic><topic>Satellites</topic><topic>Transmission</topic><toplevel>online_resources</toplevel><creatorcontrib>Kaushal, H</creatorcontrib><creatorcontrib>Jain, V K</creatorcontrib><creatorcontrib>Kar, S</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Journal of communication and computer</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kaushal, H</au><au>Jain, V K</au><au>Kar, S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improvement of Ground to Satellite FSO Link Performance Using Transmit Diversity in Weak Atmospheric Turbulence</atitle><jtitle>Journal of communication and computer</jtitle><addtitle>Journal of Communication and Computer</addtitle><date>2011</date><risdate>2011</risdate><volume>8</volume><issue>1</issue><spage>63</spage><epage>70</epage><pages>63-70</pages><issn>1548-7709</issn><eissn>1930-1553</eissn><abstract>The performance of ground to satellite free space optical （FSO） communication link is degraded due to the presence of atmospheric turbulence that causes fluctuations in both intensity and phase of the received optical signal. 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| ispartof | Journal of communication and computer, 2011, Vol.8 (1), p.63-70 |
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| language | eng |
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| source | EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Antennae Atmospheric turbulence Communication satellites Degradation Grounds Links Modulation Satellites Transmission |
| title | Improvement of Ground to Satellite FSO Link Performance Using Transmit Diversity in Weak Atmospheric Turbulence |
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