Abstract
The demand for pervasive wireless access and the need for high data rates are expected to grow in the future for fifth generation (5G) networks. This has been triggered by the huge proliferation of high resource demand applications such as gaming, mobile TV and certain wireless services. The emergence of these new services has led to stringent bit rate per square kilometer requirements that 5G networks will be expected to deliver. One promising methodology to solve this problem is the deployment of heterogeneous networks, or HetNets, which represent a novel networking paradigm based on the idea of deploying short-range, low-power, and low-cost base stations that operate in conjunction with the main 5G macrocellular network infrastructure. This allows the system to provide high data rates, offload excess traffic from the macrocell and provide dedicated capacities to homes, enterprises, or urban hotspots. HetNets encompass a broad variety of cells, including microcells, picocells, metro cells, and femtocells, as well as advanced wireless relays and distributed antennas that can be deployed anywhere. While HetNet technology will be beneficial for future wireless systems in many ways, several accompanying issues arise in terms of interference mitigation, radio resource utilization, fairness, complexity and QoS. This book mainly focuses on the challenges of interference management, which is one of the main system bottlenecks. Specifically, this chapter introduces the main concepts of HetNets, with a focus on possible deployment scenarios for these networks and the emerging research challenges.
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Marabissi, D., Fantacci, R. (2015). Heterogeneous Networks. In: Cognitive Interference Management in Heterogeneous Networks. SpringerBriefs in Electrical and Computer Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-20191-7_1
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DOI: https://doi.org/10.1007/978-3-319-20191-7_1
Publisher Name: Springer, Cham
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Online ISBN: 978-3-319-20191-7
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