{"title":"多接收天线环境后向散射系统的信号检测","authors":"Zhe Ma, Tengchan Zeng, Gongpu Wang, F. Gao","doi":"10.1109/CWIT.2015.7255150","DOIUrl":null,"url":null,"abstract":"“Ambient backscatter” is a new communication technology that utilizes ambient radio frequency signals to enable battery-free devices to communicate with each other. In this paper, we formulate a new transmission model when the reader is equipped with multiple antennas and propose a new way for signal detection when the channel state information is unknown. We derive an approximate closed-form detection threshold to identify the transmitted symbols and also analyze the corresponding bit error rate (BER) performance. It is found that increasing number of receiving antennas will lead to lower BER, while there exists an error floor when the antenna number is above certain level. Finally, simulation results are provided to corroborate our theoretical studies.","PeriodicalId":426245,"journal":{"name":"2015 IEEE 14th Canadian Workshop on Information Theory (CWIT)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"44","resultStr":"{\"title\":\"Signal detection for ambient backscatter system with multiple receiving antennas\",\"authors\":\"Zhe Ma, Tengchan Zeng, Gongpu Wang, F. Gao\",\"doi\":\"10.1109/CWIT.2015.7255150\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"“Ambient backscatter” is a new communication technology that utilizes ambient radio frequency signals to enable battery-free devices to communicate with each other. In this paper, we formulate a new transmission model when the reader is equipped with multiple antennas and propose a new way for signal detection when the channel state information is unknown. We derive an approximate closed-form detection threshold to identify the transmitted symbols and also analyze the corresponding bit error rate (BER) performance. It is found that increasing number of receiving antennas will lead to lower BER, while there exists an error floor when the antenna number is above certain level. Finally, simulation results are provided to corroborate our theoretical studies.\",\"PeriodicalId\":426245,\"journal\":{\"name\":\"2015 IEEE 14th Canadian Workshop on Information Theory (CWIT)\",\"volume\":\"56 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-07-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"44\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 IEEE 14th Canadian Workshop on Information Theory (CWIT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CWIT.2015.7255150\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE 14th Canadian Workshop on Information Theory (CWIT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CWIT.2015.7255150","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Signal detection for ambient backscatter system with multiple receiving antennas
“Ambient backscatter” is a new communication technology that utilizes ambient radio frequency signals to enable battery-free devices to communicate with each other. In this paper, we formulate a new transmission model when the reader is equipped with multiple antennas and propose a new way for signal detection when the channel state information is unknown. We derive an approximate closed-form detection threshold to identify the transmitted symbols and also analyze the corresponding bit error rate (BER) performance. It is found that increasing number of receiving antennas will lead to lower BER, while there exists an error floor when the antenna number is above certain level. Finally, simulation results are provided to corroborate our theoretical studies.
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