Abstract
The next-generation mobile communication network (5G) is a heterogeneous network, and it has the added advantage in the wireless communication field. Users will feel uninterrupted communication over the 5G network. It required a higher bandwidth in order to achieve a higher data rate. 5G is classified into three categories such as ultra-reliable low latency communication (URLLC), massive machine-type communication (mMTC), and enhance mobile broadband (eMBB) by the International Telecommunication Union (ITU). 5G will provide the higher data rate (Gbps), low latency, enhance quality of service (QoS), low energy consumption at a low cost per transmission, better spectral efficiency (SE), energy efficiency (EE), quality of service (QoS), improved throughput and better user experience. There will be so many challenges to achieve the above-mentioned factors. The main challenges are to reduce Interference, latency, power consumption, and enhance data rate. The paper highlights the different issues and challenges of 5G and compare different existing methodologies for mitigating these challenges.Keywords5GHeterogeneous networkMillimeter waveCoverage areaInterferenceLatencySpectral efficiencyEnergy efficiencyLow power consumption
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