Abstract
The evolution towards 5G mobile communication networks will be characterized by increasing number of wireless devices and service complexity, while the requirement to access mobile services will be essential. This paper presents an overview of the evolution of wireless networks, and focus on future mobile communication generation (5G) with its requirements, Challenges and Services. In addition, we propose a HetNet based architecture for 5G networks. The key ideas for each of the technologies are stated, along with the potential impact on 5G networks architecture.The proposed HetNet architecture key elements such as Small cells, Massive MIMO, mm-waves, D2D communication, full-duplex communication, energy harvesting, Cloud-RAN and Wireless Network Virtualization, all of these technologies serve together to ensure users with Quality of service (QoS) requirement in a spectrum & energy efficient manner. Keywords: 5G networks, wireless cellular networks, 5G networks, 5G heterogeneous network architecture, small cells, D2D communications, Massive MIMO, mm-wave, C-RAN, energy harvesting.
Highlights
Revolution and evolution of Mobile wireless industry has started since early 1970While mobile communication industry has witnessed huge growth since mid 1990’s
Using a large array of antenna elements which is known as Massive Multiple-Input/Multiple-Output (MIMO), is another technology proposed to be applied in 5G networks to provide diversity and compensate for path loss
Using Massive MIMO technology and small cells technique are enhanced by a move to mm-wave spectrum, since the teeny wavelengths allow for hundreds of antenna elements to be placed in an array on a small physical platform at the base station
Summary
Revolution and evolution of Mobile wireless industry has started since early 1970While mobile communication industry has witnessed huge growth since mid 1990’s. The wide spread of cellular communications have led to develop new wireless systems and standards, besides mobile voice calls. One of the wireless technologies is wireless ad hoc network. Nodes in wireless ad hoc networks are small, with low capacity in energy and storage [2]. These limitations exist too in cellular devices where the proposed technologies for 5g heterogeneous network must be applied. These limitations and challenges must be taken in consideration to determine the proper technologies in 5G networks
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