Titlebook: Cognitive Interference Management in Heterogeneous Networks; Dania Marabissi,Romano Fantacci Book 2015 The Author(s) 2015 Beamforming.Cogn

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2191-8112 ll cells which are able to avoid or limit interference by using suitable beamforming and resource allocation schemes. The suggested solutions are supported by numerical results in terms of performance evaluations and comparisons..978-3-319-20190-0978-3-319-20191-7Series ISSN 2191-8112 Series E-ISSN 2191-8120

Functional

APO

Interference Management in HetNetshe computational capacity of the devices used, the backhaul link and various other factors. This chapter describes the main concepts of interference management in HetNets when they are deployed using a spectrum sharing approach. It also provides an overview of the best known interference management approaches.

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Cognitive HetNetsssed in the previous chapters, the main issue here is to reduce or even prevent inter-cell interference. In 4G networks, this problem has been solved by resorting to coordinated approaches. However, this methodology is only viable when both the macrocells and the small cells are deployed directly by

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Cognitive Resource Allocation with Beamformingmust be handled appropriately to realize the actual benefits of HetNets. In particular, it becomes very challenging when there is zero or limited coordination among the cells, and cognitive capabilities and opportunistic use of the available resources are thus required. With that background, this Ch

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Conclusionse expected for future 5G networks. This Chapter recaps the main concepts, methodologies and approaches that have been introduced in the preceding Chapters, and then critically outlines the evolutionary trends and challenges of HetNet technology.

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