{"title":"高效功率放大器对无线接入的影响","authors":"M. M. A. Hossain, R. Jäntti","doi":"10.1109/GreenCom.2011.6082504","DOIUrl":null,"url":null,"abstract":"Energy consumption of next generation radio access network is posing a deep impact on CO2 emission and network operating cost. In a macro site, radio equipment dominates the power consumption. Specifically, the power amplifiers consume 70% of the total input power. In case of WCDMA and OFDMA, the Traditional Power Amplifier (TPA) suffers from low efficiency due to the non-constant envelope signals. To improve efficiency in case of these kinds of signals, deployment of Envelope Tracking Power Amplifier (ET-PA) is a viable solution. In this paper, the efficiency vs. output power characteristics of the ET-PA has been modeled. Moreover, by carrying out system level simulation in WCDMA network scenario, we show that 7–15% energy can be saved by replacing TPA by ET-PA.","PeriodicalId":179862,"journal":{"name":"2011 IEEE Online Conference on Green Communications","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"24","resultStr":"{\"title\":\"Impact of efficient power amplifiers in wireless access\",\"authors\":\"M. M. A. Hossain, R. Jäntti\",\"doi\":\"10.1109/GreenCom.2011.6082504\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Energy consumption of next generation radio access network is posing a deep impact on CO2 emission and network operating cost. In a macro site, radio equipment dominates the power consumption. Specifically, the power amplifiers consume 70% of the total input power. In case of WCDMA and OFDMA, the Traditional Power Amplifier (TPA) suffers from low efficiency due to the non-constant envelope signals. To improve efficiency in case of these kinds of signals, deployment of Envelope Tracking Power Amplifier (ET-PA) is a viable solution. In this paper, the efficiency vs. output power characteristics of the ET-PA has been modeled. Moreover, by carrying out system level simulation in WCDMA network scenario, we show that 7–15% energy can be saved by replacing TPA by ET-PA.\",\"PeriodicalId\":179862,\"journal\":{\"name\":\"2011 IEEE Online Conference on Green Communications\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-11-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"24\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2011 IEEE Online Conference on Green Communications\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/GreenCom.2011.6082504\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 IEEE Online Conference on Green Communications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/GreenCom.2011.6082504","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Impact of efficient power amplifiers in wireless access
Energy consumption of next generation radio access network is posing a deep impact on CO2 emission and network operating cost. In a macro site, radio equipment dominates the power consumption. Specifically, the power amplifiers consume 70% of the total input power. In case of WCDMA and OFDMA, the Traditional Power Amplifier (TPA) suffers from low efficiency due to the non-constant envelope signals. To improve efficiency in case of these kinds of signals, deployment of Envelope Tracking Power Amplifier (ET-PA) is a viable solution. In this paper, the efficiency vs. output power characteristics of the ET-PA has been modeled. Moreover, by carrying out system level simulation in WCDMA network scenario, we show that 7–15% energy can be saved by replacing TPA by ET-PA.
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