http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Cloud Radio Access Network: Virtualizing Wireless Access for Dense Heterogeneous Systems
Osvaldo Simeone,Andreas Maeder,Mugen Peng,Onur Sahin,Wei Yu 한국통신학회 2016 Journal of communications and networks Vol.18 No.2
Cloud radio access network (C-RAN) refers to the virtualizationof base station functionalities by means of cloud computing. This results in a novel cellular architecture in which low-costwireless access points, known as radio units or remote radio heads,are centrally managed by a reconfigurable centralized “cloud”, orcentral, unit. C-RAN allows operators to reduce the capital andoperating expenses needed to deploy and maintain dense heterogeneousnetworks. This critical advantage, along with spectral effi-ciency, statistical multiplexing and load balancing gains, make CRANwell positioned to be one of the key technologies in the developmentof 5G systems. In this paper, a succinct overview is presentedregarding the state of the art on the research on C-RAN withemphasis on fronthaul compression, baseband processing, mediumaccess control, resource allocation, system-level considerations andstandardization efforts.
Opportunistic Decode-and-Forward Cooperation in Mixed Rayleigh and Rician Fading Channels
Changqing Yang,Wenbo Wang,Shuang Zhao,Mugen Peng 한국전자통신연구원 2011 ETRI Journal Vol.33 No.2
We consider a two-hop multiple-relay network implemented with opportunistic decode-and-forward cooperative strategy, where the first hop and second hop links experience different fading (Rayleigh and Rician). We derive the exact expressions of end-to-end outage probability and analyze the approximate results in high signal-to-noise ratio region. The analysis shows that the same diversity order can be achieved even in different mixed fading environments. Simulation results are provided to verify our analysis.
Cloud Radio Access Network: Virtualizing Wireless Access for Dense Heterogeneous Systems
Simeone, Osvaldo,Maeder, Andreas,Peng, Mugen,Sahin, Onur,Yu, Wei The Korea Institute of Information and Commucation 2016 Journal of communications and networks Vol.18 No.2
Cloud radio access network (C-RAN) refers to the virtualization of base station functionalities by means of cloud computing. This results in a novel cellular architecture in which low-cost wireless access points, known as radio units or remote radio heads, are centrally managed by a reconfigurable centralized "cloud", or central, unit. C-RAN allows operators to reduce the capital and operating expenses needed to deploy and maintain dense heterogeneous networks. This critical advantage, along with spectral efficiency, statistical multiplexing and load balancing gains, make C-RAN well positioned to be one of the key technologies in the development of 5G systems. In this paper, a succinct overview is presented regarding the state of the art on the research on C-RAN with emphasis on fronthaul compression, baseband processing, medium access control, resource allocation, system-level considerations and standardization efforts.