By Hrishikesh Venkataraman, Ramona Trestian
C-RAN and virtualized Small cellphone expertise poses a number of significant examine demanding situations. those comprise dynamic source allocation, self-configuration within the baseband pool, excessive latency in information move among radio unit and baseband unit, the price of facts supply, excessive quantity of information within the community, software program networking facets, capability strength discounts, defense issues, privateness of user’s own facts at a distant position, barriers of virtualized surroundings, and so on. This e-book presents deeper insights into the subsequent new release RAN structure and surveys the coexistence of SDN, C-RAN and Small Cells options proposed within the literature at diversified levels.
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Extra resources for 5G radio access networks : centralized RAN, cloud-RAN, and virtualization of small cells
These computing resources are virtualized by means of the VMs. The efficient deployment of the SCM is supposed to minimize supplementary protocol data overhead, implementation complexity, impact on current LTE-A, cost of deployment, and operation and maintenance . 3. 3 denoted as Option 1 ) is to place the SCM directly in the EPC, since it is under the supervision of a mobile operator. The advantage of this approach consists of the possibility to exploit the computing power of all SCeNBces connected to the network.
2, we provide an overview of 4G mobile network architecture and a potential centralized solution for the management of the SCC. 3, we outline novel approaches for the decentralized management of the SCC and its integration into 5G mobile networks based on C-RAN. 4 defines a protocol for the SCC management in the developed architecture. 5, we analyze the proposed signaling messages along with additional overhead introduced at other layers of the open systems interconnection (OSI) model. 6. The last section summarizes the chapter, provides major conclusions, and discusses possible future work.
Computational load of the VMs) . Such a control entity, denoted as a small cell cloud manager (SCM), should be tightly integrated into the mobile network architecture . From the operator’s point of view, the simplest and the easiest option to begin with is to merge the SCM with an existing node in the network, for example, a mobility management entity in the core network, a baseband unit (BBU) in C-RAN, or a femtocell gateway, if available (see ). To prevent negative aspects of strict mobile network timings or the overloading of existing hardware, the SCM is implemented as additional hardware dedicated to computing management.