Due to spectral efficiency enhancements, Multiple Input Multiple Output (MIMO) technology will be applied for next generation communications systems in the near future. Accurate MIMO model is very important to analyse statistical properties of the channel and predict performance of the transmission system. The paper proposes a physical-statistical model for MIMO system combining ray-tracing and Rician model. By simulating in a block of city, the work gives the statistical properties and capacity of the MIMO system. The results show that the model can be applied to the MIMO system and have the advantage of a precise description about propagation and a low computational cost.
{"title":"Physical statistical modelling of MIMO channel based on Rician distribution","authors":"Jianpei Chen, Dongya Shen, Yanni Cui, Weiping Ren, Shihong Zhu","doi":"10.1109/GMC.2011.6103921","DOIUrl":"https://doi.org/10.1109/GMC.2011.6103921","url":null,"abstract":"Due to spectral efficiency enhancements, Multiple Input Multiple Output (MIMO) technology will be applied for next generation communications systems in the near future. Accurate MIMO model is very important to analyse statistical properties of the channel and predict performance of the transmission system. The paper proposes a physical-statistical model for MIMO system combining ray-tracing and Rician model. By simulating in a block of city, the work gives the statistical properties and capacity of the MIMO system. The results show that the model can be applied to the MIMO system and have the advantage of a precise description about propagation and a low computational cost.","PeriodicalId":435824,"journal":{"name":"2011 Global Mobile Congress","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131261898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-10-01DOI: 10.1109/GMC.2011.6103909
Jie Zhao, Youming Li
Dynamic resource allocation (DRA) in MIMO-OFDMA systems supporting multiple services is studied. A low complexity linear algorithm based on solving an RA optimization problem subject to an additional proportional fairness constraint is developed. Computer simulation results demonstrate that the proposed algorithm performs well, and the proportionality of rate among the users approaches the proportional rate constraint as the increasing of the available subcarriers. Furthermore, it has a lower computational complexity.
{"title":"An efficient proportional resource allocation algorithm in MIMO-OFDMA systems","authors":"Jie Zhao, Youming Li","doi":"10.1109/GMC.2011.6103909","DOIUrl":"https://doi.org/10.1109/GMC.2011.6103909","url":null,"abstract":"Dynamic resource allocation (DRA) in MIMO-OFDMA systems supporting multiple services is studied. A low complexity linear algorithm based on solving an RA optimization problem subject to an additional proportional fairness constraint is developed. Computer simulation results demonstrate that the proposed algorithm performs well, and the proportionality of rate among the users approaches the proportional rate constraint as the increasing of the available subcarriers. Furthermore, it has a lower computational complexity.","PeriodicalId":435824,"journal":{"name":"2011 Global Mobile Congress","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117294773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-09-23DOI: 10.1109/GMC.2011.6103928
Xiu‐Gang Zhang, Shu-cui Xie, Dong Wang
In this paper, we point out Partially Entangled States quantum dialogue, which enables both legitimate parties to exchange their 2 bit secret messages in a direct way. Two step security check guarantees the security of this protocol. Partially Entangled States used as information carrier are easy to prepare and store, there is no need to transmit quantum states with secret message in quantum channel and two users can simultaneously communicate with the third party. The protocol is secure against the intercept-resend attack and the entangle-measure attack.
{"title":"Three-party quantum secure direct communication base on Partially Entangled States","authors":"Xiu‐Gang Zhang, Shu-cui Xie, Dong Wang","doi":"10.1109/GMC.2011.6103928","DOIUrl":"https://doi.org/10.1109/GMC.2011.6103928","url":null,"abstract":"In this paper, we point out Partially Entangled States quantum dialogue, which enables both legitimate parties to exchange their 2 bit secret messages in a direct way. Two step security check guarantees the security of this protocol. Partially Entangled States used as information carrier are easy to prepare and store, there is no need to transmit quantum states with secret message in quantum channel and two users can simultaneously communicate with the third party. The protocol is secure against the intercept-resend attack and the entangle-measure attack.","PeriodicalId":435824,"journal":{"name":"2011 Global Mobile Congress","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131637049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：