Smart probabilistic fingerprinting for WiFi-based indoor positioning with mobile devices
详细信息    查看全文
文摘
Different positioning schemes are based on the probability lsi48" class="mathmlsrc">le="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S1574119216000377&_mathId=si48.gif&_user=111111111&_pii=S1574119216000377&_rdoc=1&_issn=15741192&md5=004b51013fb4ef6f942507cdd907303b">lass="imgLazyJSB inlineImage" height="15" width="40" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S1574119216000377-si48.gif">lass="mathContainer hidden">lass="mathCode">ltimg="si48.gif" overflow="scroll">p(le mathvariant="bold">ole>|l) to have an observation vector lsi56" class="mathmlsrc">le="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S1574119216000377&_mathId=si56.gif&_user=111111111&_pii=S1574119216000377&_rdoc=1&_issn=15741192&md5=121dc70daf899bbd2ea5397a47bda5de">lass="imgLazyJSB inlineImage" height="8" width="11" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S1574119216000377-si56.gif">lass="mathContainer hidden">lass="mathCode">ltimg="si56.gif" overflow="scroll">le mathvariant="bold">ole> at a Reference Point (RP) lsi57" class="mathmlsrc">lass="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S1574119216000377&_mathId=si57.gif&_user=111111111&_pii=S1574119216000377&_rdoc=1&_issn=15741192&md5=adb3e2bc5e4b9477cbbbbb3409af4187" title="Click to view the MathML source">llass="mathContainer hidden">lass="mathCode">ltimg="si57.gif" overflow="scroll">l, based on Gaussian probabilities. This paper presents an approach to speed-up the lsi48" class="mathmlsrc">le="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S1574119216000377&_mathId=si48.gif&_user=111111111&_pii=S1574119216000377&_rdoc=1&_issn=15741192&md5=004b51013fb4ef6f942507cdd907303b">lass="imgLazyJSB inlineImage" height="15" width="40" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S1574119216000377-si48.gif">lass="mathContainer hidden">lass="mathCode">ltimg="si48.gif" overflow="scroll">p(le mathvariant="bold">ole>|l) computation without any approximation. The consequent positioning scheme is called Smart P-FP. The comparison between Traditional   (without any lsi48" class="mathmlsrc">le="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S1574119216000377&_mathId=si48.gif&_user=111111111&_pii=S1574119216000377&_rdoc=1&_issn=15741192&md5=004b51013fb4ef6f942507cdd907303b">lass="imgLazyJSB inlineImage" height="15" width="40" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S1574119216000377-si48.gif">lass="mathContainer hidden">lass="mathCode">ltimg="si48.gif" overflow="scroll">p(le mathvariant="bold">ole>|l) acceleration) and Smart   P-FP is performed over different smartphones. The saved energy is about 90% for a large number of Access Points (APs) but is significant even with few APs: more than 86% with lsi60" class="mathmlsrc">lass="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S1574119216000377&_mathId=si60.gif&_user=111111111&_pii=S1574119216000377&_rdoc=1&_issn=15741192&md5=efcde3336275f910c7dc2a9b84319639" title="Click to view the MathML source">3lass="mathContainer hidden">lass="mathCode">ltimg="si60.gif" overflow="scroll">3 APs. The proposed lsi48" class="mathmlsrc">le="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S1574119216000377&_mathId=si48.gif&_user=111111111&_pii=S1574119216000377&_rdoc=1&_issn=15741192&md5=004b51013fb4ef6f942507cdd907303b">lass="imgLazyJSB inlineImage" height="15" width="40" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S1574119216000377-si48.gif">lass="mathContainer hidden">lass="mathCode">ltimg="si48.gif" overflow="scroll">p(le mathvariant="bold">ole>|l) computation is beneficial to any lsi48" class="mathmlsrc">le="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S1574119216000377&_mathId=si48.gif&_user=111111111&_pii=S1574119216000377&_rdoc=1&_issn=15741192&md5=004b51013fb4ef6f942507cdd907303b">lass="imgLazyJSB inlineImage" height="15" width="40" alt="View the MathML source" style="margin-top: -5px; vertical-align: middle" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S1574119216000377-si48.gif">lass="mathContainer hidden">lass="mathCode">ltimg="si48.gif" overflow="scroll">p(le mathvariant="bold">ole>|l)-based positioning scheme.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700