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Wireless network cloud: Architecture and system requirements
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by Y. Lin,
L. Shao,
Z. Zhu,
Q. Wang,
and R. K. Sabhikhi
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With the growth of the mobile communication network, from
second-generation to third-generation or fourth-generation
networks, technologists in the mobile industry continue to consider
advanced wireless network architectures that have the potential to
reduce networking costs and provide increased flexibility with
respect to network features. In this paper, we propose the wireless
network cloud (WNC), a wireless system architecture for a wireless
access network. This system makes use of emerging cloud-computing
technology and various technologies involved with wireless
infrastructure, such as software radio technology and remote radio
head technology. Based on open information technology
architecture, the WNCprovides all the necessary transmission and
processing resources for a wireless access network operating in a
cloud mode. Note that it is useful to separate the hardware and
software for different wireless standards and various services and
business models, as well as to meet the new system requirements for
emerging wireless technologies, such as collaborative processing at
different scales of network use. We analyze several important system
challenges involving computational requirements of virtual base
stations, I/O throughput, and timing networks for synchronization.
Based on current information technologies, we make several
suggestions with respect to future system design.
 Full paper
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