{"title":"Fading Statistics of Voice Channel for the European Union Emergency Call","authors":"Yunrui Li, John Q. Liu","doi":"10.1109/VTCFall.2016.7881011","DOIUrl":null,"url":null,"abstract":"The European Union (EU) emergency call (eCall) employs the GSM voice channel for vehicle emergency data transmission. However, fading statistics of the GSM voice channel after power control has not been discussed previously. This paper reports the power measurements for the end-to-end GSM voice channel with an in-vehicle system (IVS) transmitter in laboratory or on freeway. The data reveals that strong fading still exists in the GSMvoice channel after power control, which can cause severe packet loss and delay in the emergency call.","PeriodicalId":6484,"journal":{"name":"2016 IEEE 84th Vehicular Technology Conference (VTC-Fall)","volume":"81 1","pages":"1-5"},"PeriodicalIF":0.0000,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 IEEE 84th Vehicular Technology Conference (VTC-Fall)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/VTCFall.2016.7881011","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
The European Union (EU) emergency call (eCall) employs the GSM voice channel for vehicle emergency data transmission. However, fading statistics of the GSM voice channel after power control has not been discussed previously. This paper reports the power measurements for the end-to-end GSM voice channel with an in-vehicle system (IVS) transmitter in laboratory or on freeway. The data reveals that strong fading still exists in the GSMvoice channel after power control, which can cause severe packet loss and delay in the emergency call.
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