邢唷��>� 58��4��欹�懥 ��;bjbj�� €眃眃;��44��$<! �PPPPP+++��,�"�{%��+ "+++�?PP��???+ PP�?+�??V|h�� 乂鵚鹞��5 ��0! �&?&�?��+++��?+++! ��&+++++++++4��: Sarah Kate Wilson (BMC �79) Santa Clara University 揃linded by the Light: Optical Wireless Communications� Friday, December 6, 2013* Talk at 3:00* � Park 338 Tea at 2:30 � Park 355, Math Lounge *Please note the special date and time Abstract: We tap away at phones, iPads and laptops on planes, on busses and in living rooms. The most common medium for transmitting cat videos and selfies is radio waves. While radio waves work well, they have the following issues: the amount of data that can be sent on a radio link is limited and radio waves are not confined to a given room. Have you ever been in a common area, happily downloading a video, when another person in the room fires up their iPad and sucks away your Internet connection? One way to solve the problem of slow Internet access is to add more avenues for transmitting data, such as room lighting. This technology is energy efficient as the light can be used for both illumination and information. In addition, data transmitted by light cannot go through walls, so your Internet secrets are secure, at least from your neighbors. The actual transmission of data involves choosing appropriate waveforms to represent messages. For example, a cosine of certain frequency could represent a 0, while a cosine of a different frequency can represent a 1. So your smart phone has to recognize what waveform was transmitted. However, your phone's job is complicated by the fact that transmitted signals never seem to look like they should when they arrive at the receiver. They experience dispersion, which is modeled as convolutions, a mapping from one function space to another. In addition, they are corrupted by rogue electrons called noise. Noise is modeled as a Gaussian random process. This talk will give an introduction to some of these transmission methods and then focus on optical wireless communications. A proposed method for sending information via light is asymmetrically-clipped optical Orthogonal Frequency Division Multiplexing (ACO-OFDM). Some recent results for ACO-OFDM are presented and discussed. BRYN MAWR COLLEGE !"89;<qrstu麒苷汤帆牁寛vdRvD4h.x3h.x35丆JOJQJaJh,O�h!M5丆JOJQJ"h,O�h65�6丆J,OJQJaJ,"h,O�h�<^5�6丆J,OJQJaJ,"h,O�h!M5�6丆J,OJQJaJ,h!Mh,O�h!M5丆J8aJ8hDcCJ8aJ8h齨�h!MCJ8aJ8hDchDc5丆J8aJ8h,O�5丆J8aJ8h齨�h�<^5丆J8aJ8h�.�5丆J0aJ0 h!M6丆J(h�<^h!M6丆JHaJHjh�<^h!MCJHUaJHh!M5�:丆J8!9:;stu�� gd� �gd� �$�^�a$gd,O�$a$gd!M ��^�gd,O� ��^�gdDc ��^�gd擶�$ ��&剛�]剛^�a$$ ��&剛�]剛^�a$u{}��镞镞峡锭槈z榢榒UJ?6h,O�h擶�CJh,O�h!MCJ$aJ$h,O�h3_�CJ$aJ$h,O�h�UCJ$aJ$h,O�h�<^CJ$aJ$h,O�h6CJ$OJQJaJ$h,O�h擶�CJ$OJQJaJ$h,O�h�UCJ$OJQJaJ$h,O�h!MCJ$OJQJaJ$h,O�h�<^CJ$OJQJaJ$h,O�h� �CJh,O�h�U5丆J$OJQJaJ$h,O�h擶�5丆J$OJQJaJ$h,O�h65丆J$OJQJaJ$h,O�h�<^5丆J$OJQJaJ$�� Q();��$a$gd,O�gdlp�$a$gd��$a$gd擶� �� /;PQR��%!x�&'()胫某u]Mh,O�h,O�5丆JOJQJaJh3_�OJQJ^JaJh,O�OJQJ^JaJ hlp�hm}oCJ OJQJ^JaJ h,O�h�.�OJQJ^JaJh,O�hlp�OJQJ^JaJh,O�hm}oOJQJ^JaJ!h齨�h�.�B*OJQJaJph"h3a5丅*CJ$OJQJaJ$ph(h��h!M5丅*CJ$OJQJaJ$phhlp�h!M5乤Jh擶�h擶�h擶�);�h�Uh!M5丆J OJQJaJ ~�€P+p,p-p.p/R 靶/ 班=!皜"皜#恅$�&%�靶靶愋4��5��6��7��Dp��666666666vvvvvvvvv666666>666666666666666666666666666�6666666666�666666666666hH66666666666666666666666666666666666666666666666666666666666666666�66866666662�� 0@P`p��2(�� 0@P`p€�� 0@P`p€�� 0@P`p€�� 0@P`p€�� 0@P`p€��(8HX`~€�8X�V~OJQJ_HmH nH sH tH D`�DNormalCJOJQJ_HmH sH tH f@f Heading 1-$$ ��&剛�-D@&]剛^�a$CJHOJQJZ@Z Heading 2)$$ ��&剛�@&]剛^�a$CJ Z@Z Heading 3&$$ ��&剛�@&]剛^�a$5丆J>@> Heading 4$$@&a$CJ,>@> Heading 5$$@&a$5�Z@Z Heading 6)$$ ��&剛�@&]剛^�a$CJHh@h Heading 7&$$ ��&剛�@&]剛^�a$5�6�:丆JHOJQJh@h Heading 8&$$ ��&剛�@&]剛^�a$5�6�;丆J8OJQJb @b Heading 9) $$ ��&剛�@&]剛^�a$CJ(OJQJDA ��DDefault Paragraph FontZi@��ZTable Normal :V�4� l4�a�_H(k ��(No List2B�2 Body Text4/4List刪剺⺗刪`剺�:P@:Body Text 26丆J4TQ@"TBody Text 3$ ��&剛]剛a$6丆JH@T2@ Block Text凘劥]凘^劥H>@BHTitle$ゐ�<�a$5丆J KHOJQJVC@RVBody Text Indent 勑`勑B*OJQJphVR@bVBody Text Indent 2 勑^勑 B*CJ ph$�/�q$m1objectPK!涜pO�[Content_Types].xml瑧薺�0E鲄䞍卸豶�(ヘ微廬嬼yl嬝#!MB蝼;.�卬姨谨台\艫�1&绌耀夹生芉W橄蚄v疷b�OX�#&疆释1`RⅵT闉9<搇�#ぼ$┐>幚r崫 `沸」-�;c=1g词'縸�虫笔咓颈叠$篒�翱�1脢办9报滨鬰尝�涢贬�隮<�;*v�7'榓瓻\�h>嗟�=青镑,�*彿阗�8辩赌;湷镑�*4髑槿?�奥辩调苍阍塷驳淎撙>曧�8蹿�2�*<")QH裤麆xK┟� 梶ㄐ]奪榸)橛亾MS欯\&>!�7;飞笔�3熥摆淅贰叠鲍缚�1綩楥�5VD翕� 豖靉?p墾勠 S喧4坻曐[驨S叫28;嶻慵[戢櫌�,荇撘骉1|筅n�;�+衡/蕰j�蟎阉\,E:!莒宼�4.T獭e1 �謢�; [鄗^鵳縧�銨�ok侮0e g@礕GHPXNT,賲禿诧e鮸楸*YdT臷橸�鋩熬顏+�(員7�$ow2�茜紓#紾┲浻墒ビ掷?絨迸N澵K椟-�/M,W鏖阦鍗x盕V�/Q吴范朞鯕&渆刀c蛒几\Q滜她LW@H��!�+魝阽{衃|{包!汝K韩A�i `遚m2iU栚|纾Y+�蕤栿� [[v杧煋靣錘缭釫挐3靝m擎R �=Y�04,�!&0�+W魿軆@o習�樫OS2�'S佼0�5嘌$�嗓]pm珠3孎瞭�崕婓G蓜-!鹹へ"�訅V .� 甡幾�,�O.%烫胁Kas楁S球骗弙€稭謟瓔玚姤叢3铵蘽�9+e鰻@�e觇諗錖y硥�7啠W萧_Xtl斴��PK! 褠煻'theme/theme/_rels/themeManager.xml.rels剰M �0匃倃oo雍�&輬协�勪5 6?$Q祉 �,.嘺緳i粭澤c2�1h�:闀q毩m胳嶡RN壻;d癭値o7�g慘(M&$R(.1榬'J摐袏T鶂�8V�"＆A然蠬鱱}狇�|�$絙{�朠�除8塯/]As賲(⑵锑#洩L蔥汉倪��PK-!涜pO�[Content_Types].xmlPK-!ブх�6-_rels/.relsPK-!ky��theme/theme/themeManager.xmlPK-!!Z!��theme/theme/theme1.xmlPK-! 褠煻'( theme/theme/_rels/themeManager.xml.relsPK]# ;��u�); �; �8�@��€€€�餻��( � �鹬 � �饦览:爬�W��H��唵�?��BI-CO MATHEMATICS COLLOQUIUMColonna MT"�?��養 �S�� ?�;qQ!at==��壢c�� ^�`�OJQJo(�8剺��^�8`剺﨩JQJo(佛�剺��^�`剺﨩JQJ^Jo(o勜剺��p^勜 `剺﨩J QJ o(ю劏剺��@^劏`剺﨩J QJ o(剎剺��^剎`剺﨩JQJo(佛凥剺��^凥`剺﨩JQJ^Jo(o�剺��^�`剺﨩J QJ o(ю勮剺��€^勮`剺﨩J QJ o(刪剺��h^刪`剺﨩JQJo(佛刪剺��h^刪`剺﨩JQJo(佛��!M3am1Dc6�3#.x3�U�*U�9\�<^�0`紷cm}o�=r踍t�.�峆�lp�3_�� 烡��齨�`�,O�V�擶�;=�@€&��;X@��Unknown��G��*郃x� �Times New Roman5�€Symbol3��*郈x� �ArialE�g€�Apple ChanceryA��€K P�Hoefler Text9�MNew York3�Times=�Colonna MT?� �*郈x� �Courier New;�€WingdingsA��$B�Cambria Math"�€跣nGnG�':�:!€�;��€r477K#Q€�;勥P�$P��丄42! xx�,��BI-CO MATH COLLOQUIUMComputing ServicesTina Fasbinder� 鄥燆鵒h珣+'迟0�� $ HT` lx€��'BI-CO MATH COLLOQUIUMComputing ServicesNormal.dotmTina Fasbinder2Microsoft Macintosh Word@@庹�镂@漭鑇鹞@漭鑇鹞:� 胀諟.摋+,0hp�� '桃子视频7BI-CO MATH COLLOQUIUMTitle �� !"#��%&'()*+��-./0123��67��:��Root Entry�� F SY鵚鹞91Table��'&WordDocument ��€SummaryInformation(��$DocumentSummaryInformation8��,MsoDataStore��炂Q鵚鹞崇Q鵚鹞0�OHVW2SR4�B�JF4D��Q==2��破Q鵚鹞犵Q鵚鹞Item ��Properties��UCompObj�� `�� F Microsoft Word 97-2004 Document��NB6WWord.Document.8