Tatsuki Okuyama, S. Suyama, Jun Mashino, Shohei Yoshioka, Y. Okumura, Kenichiro Yamazaki, Daisuke Nose, Y. Maruta
{"title":"Experimental evaluation of digital beamforming for 5G multi-site massive MIMO","authors":"Tatsuki Okuyama, S. Suyama, Jun Mashino, Shohei Yoshioka, Y. Okumura, Kenichiro Yamazaki, Daisuke Nose, Y. Maruta","doi":"10.1109/WPMC.2017.8301860","DOIUrl":null,"url":null,"abstract":"In order to tackle rapidly increasing traffic, Massive MIMO using beamforming (BF) is promising technique for fifth-generation (5G) mobile communication systems. Authors have recently proposed the joint processing of digital fixed BF and channel state information (CSI)-based precoding (Digital FBCP) that is suitable for low-SHF-band Massive MIMO. It has been also clarified that Digital FBCP is efficient in not-only single-site but also multi-site environment by introducing extended precoding technique. Although the previous works evaluate only in computer simulations, this paper aims to evaluate real-field performances by using 5G low-SHF-band massive MIMO prototype. First we measure low-SHF-band (5.2 GHz-band) CSI data in outdoor experiment, and then, this paper optimizes beam parameter in computer simulations exploiting the measured data. Finally, we show the throughput performance of Digital FBCP in multi-site environments.","PeriodicalId":239243,"journal":{"name":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/WPMC.2017.8301860","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 10
Abstract
In order to tackle rapidly increasing traffic, Massive MIMO using beamforming (BF) is promising technique for fifth-generation (5G) mobile communication systems. Authors have recently proposed the joint processing of digital fixed BF and channel state information (CSI)-based precoding (Digital FBCP) that is suitable for low-SHF-band Massive MIMO. It has been also clarified that Digital FBCP is efficient in not-only single-site but also multi-site environment by introducing extended precoding technique. Although the previous works evaluate only in computer simulations, this paper aims to evaluate real-field performances by using 5G low-SHF-band massive MIMO prototype. First we measure low-SHF-band (5.2 GHz-band) CSI data in outdoor experiment, and then, this paper optimizes beam parameter in computer simulations exploiting the measured data. Finally, we show the throughput performance of Digital FBCP in multi-site environments.