Any type of network where there is no use of cable or guided media is called a wireless network. With the increase of wireless technology day by day and after the start of wireless technology, there is also some obstacle in the effective communication which are still encountered [1, 2]. In recent years the increase of mobile devices and users of the internet lead to an increase in the burden of the network, low connectivity, and low bandwidth and throughput. To achieve high speed and high bandwidth there is the need for unguided media which has a great impact on wireless communication to achieve better results [3, 4]. Now a day there are increased mobile devices day by day. The development of mobile devices and their communication all over the world is very useful according to appreciate the great impact that personal and cellular communication [5, 6]. Through mobile, we can send and receive a message, files, and images and audio and video files moreover we can talk on mobile in the form of microwaves. Mobile technology has a dynamic change where increases the speed of mobile devices and communication cost. Within no time a user can send and receive their file and mostly used for business purposes so it can facilitate our lives. Through the mobile cellular network, we can see each other remotely from all over the world. Through mobile networks all over the world become a small zone which is wonderful [7]. In a cellular network, the word G is abbreviated from a generation which refers to the nature of the system like speed and cost [8]. There are five generations in the cellular network. During the first generation (1G) there were used Analog technology was only used for voice calls. In second-generation (2G) there was digital technology used which where there was an only exchange of text messages. In third generation (3G) there were only multimedia messages exchanges and support high data will be transmitted and the capacities were increased. After that fourth-generation (4G) introduce which is overcome by 3G and produces the quality of service, also increases the throughput and decreases the cost [9–11]. In the fifth generation (5G) there was real-world wireless communication which is most fast than all others [12]. In the future, there are thought a new technology called 5G after 4G. It will be implemented near 2020. All the qualities which possess before generation can also work on 5G, but the difference is it will be faster than all other generations which having perfect real-world wireless with no limitations to access the zone. It also provides the support of Virtual Private Network (VPN) [13, 14]. During 5G every network will be liable for delivering user mobility and the terminal select final choice between different wireless networks provider for the services. And these choices will depend on middleware in cell phones [15]. In 5G there is a facility of remote diagnostic where a user gets a reliable and fast solution. In 5G there is large broadcasting that supports more than 65000 connections. In 5G there are global mobility services and global portability services [16, 17]. There are common services in 5G which did not depend on their capabilities, which is called service personalization. Due to high speed in 5G download speed is more 1Gbps in LAN and 500 Mbps in WAN [18, 19].
5G cellular network challenges Even though the mentioned technologies provide better network performance and better quality but there are also some challenges during design a network, testing, and their network management to fulfil the 5G requirements. Some of the research challenges are discussed below to get effective management of the resources [20]. Interference management, adaptive power control, dynamic mode selection and offloading to underlay network, device discovery, unified Medium Access Control (MAC) design [21]. SI reduction, cross-layer resource management, power allocation, interference management, synchronization and time adjustment to establish, Full-Duplex (FD) transmission, dynamic mode selection, designing MAC protocol [22–24]. Multi-user scheduling, advanced channel acquisition, energy beamforming, harvest/transmit time adaptation [25, 26], interference management, Simultaneous Wireless Information, and Power Transfer (SWIPT) enabled resource allocation [27]. Cloud-Based Radio Access Network (RAN) [28], Base-Band Unit (BBU) management (e.g., cooperation, interconnection, clustering) [29, 30], energy-aware scheduling [31, 32], frontal-aware resource allocation [21, 33]. Wireless network virtualization, Isolation, resource allocation, fairness, revenue/price optimization, mobility management [34, 35]. It has been witnessed and revealed that the current proposed work has only focused on the management of interference in the 5G cellular network with the use of MIMO and relay strategy. However, there exist some issues that cause serious problems to this network that needs to be sorted out and solved effectively. These issues include QoS, scalability with distance, roaming, robust routing schemes, the need for high bandwidth, energy constraints, the efficient communication platform, use of latest radio propagation models, reliable data delivery, and some additional security issues that may arise which needs efficient solutions. These are the limitations in the 5G cellular network that needs to be solved with accurate schemes [36–38]. There are a lot of challenges in cellular networks related to energy conservation and energy consumptions. One of the main issues regarding cellular networks in 5G is interference management. There is a poor quality of voice during indoor communication so to improve this communication there is interference management which provides us the quality of service. In indoor communication, there is low power as compared to outdoor because in outdoor communication there are many users and due to user, there are low data rate and burden on the base stations. Modulation schema and coding schema are used to achieve better channel conditions, a large convergence area, and good QoS. There must need some antennas like MIMO, Pico cell, and repeaters to cover the indoor area. In 5G there are too many factors involves like transmission power, backhaul connections, access technologies, that communicate with different heterogeneous devices. In MIMO antennae provide a high data rate and high capacity when this technology is compared to 4G. The old techniques for interface management like channel allocations; power control and cell associations in a single-tier network will be effective for this environment, so for all, there is a need for interference management. We will analyse from an interference management perspective.
The main contributions of the research includes;
The rest of the article is organised as; Section 2 Contains a detailed overview of related work in the field of 5G cellular networks, interference management, its types, issues, and challenges. Section 3: Discussed different techniques to overcome the issue of interference and the design of a new scheme for interference management with the help of MIMO and relay strategy. Section 4: Contains detail of all experimental results that are generated from simulations. Section 5: Contains conclusion and future work.