5G network

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Hello Kunthea!

The 3 main ways of wireless access virtualization:
1- Flow Oriented (Management, Scheduling, Service differentiation of different data flows from different slices)
2- Protocol Oriented (Isolate, customize, and manage the multiple wireless protocol instances on the same radio hardware)
3- Spectrum Oriented (RF bands and Raw spectrum are sliced which decouples the RF front end from the protocol, allowing multiple front ends to be used by a single node, or for a single RF front end to be used by multiple virtual wireless
nodes)

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Hello, dear.
User-centric wireless access virtualization (WAV) allows each user to be served by a set of carefully selected transmission points (TPs) forming a user-specific virtual base station (uVBS) adapted to its environment and quality-of-service (QoS) requirement. In this way, this new concept breaks away from the conventional cell-centric architecture to provide boundaryless communications in future fifth-generation (5G) networks. This fundamental structural 5G evolution and the ultra-dense multi-tier heterogeneous context foreseen in such networks require an inevitable rethinking of efficient scalable TP clustering. As such, this paper proposes three innovative low-cost clustering approaches that enable the user-centric WAV and provide dynamic, adaptive, and overlapping TP clusters while requiring not only negligible overhead cost but also minimum signaling changes at both network and user sides. Contrary to existing clustering techniques, the new ones we propose better leverage the 5G features such as extreme densification and massive connectivity as well as new concepts such as millimeter wave (mmWave) spectrum and massive multiple-input-multiple-output (MIMO). The simulations show that they may achieve until 154% and 282% of throughput and coverage gains, respectively. Furthermore, these approaches are flexible enough to be adapted to different network dimensions (i.e., space and time), thereby paving the way for achieving the dramatic performance improvements required by the 5G networks to cope with the upcoming mobile data deluge.

Thanks for sharing