Abstract
Mobiles have become very essential part of our everyday life begin of voice call to internet access. Therefore, the cellular industry is a very competitive market in the whole world. As the development 4G mobile wireless standards the operator need to know how to design and update their networks so that they can provide the best services to the lowest possible cost. This topic has become a hot topic in the industry. In this paper, we present a literature review on the topological planning problem of LTE Advanced-based Heterogeneous mobile Networks. After describing the need of heterogeneous mobile networks, the architecture is presented. A comparison is made between components to justify the necessity of components we will use in the planning process. We focus on base stations layout and the main problems faced in this planning. This paper provides a high level overview of different parameters constraints and challenges that operators must tackle in order for these networks to reach their potential so that it is used as a starting point for future research on topological design of Dense Areas Heterogeneous mobile Networks.