Bangladesh Army University of Engineering & Technology

NLOS and LOS of the 28,37,64and 71 GHz Bands millimetre wave in Fifth-Generation(5G) cellular networks.

 Introduction  State of the problem  Literature review  Research methodology  Expected outcome  Conclusion  References

 A wireless network is a computer network that uses wireless data connections between networks nodes.  Cellular network is an underlying technology for mobile phones, personal communication systems, wireless networking.  There are many kinds of cellular technologies such as 3G, 3.5G and 4G.

 5G is the term used to describe the next- generation of mobile networks beyond the 4G LTE mobile networks of today.  Provide internet for everywhere,everything in the nearest future.  By using this network we get all kinds of facilities mm-wave bands will play an important role in fifth-generation (5G) communication.

 There are much competition for better performances in frequency bands.  where existing radio frequency spectrum typically below 6GHz.  High energy consumption, spectrum crisis, bad interconnectivity poor coverage.  flexibility and poor quality of services.

 Uploading and downloading speed is low.  Data bandwidth of <1 Gb/s or lower.  Don't work properly on animus atmosphere. such as heavy rain, dense fog etc.  Poor coverage area and bad inter- connectivity.

 [1],present a variety of measurement results that’s how 28 and 38GHz frequencies can be used.The motivation for new mm-wave cellular systems, methodology, and hardware for measurements.  [2], shows the remarkable distances that can be achieved using millimetre wave communications.  In[3], it presents details and applications of a novel channel simulation software named NYUSIM used to generate realistic temporal and spatial channel responses.  In [4] paper, surveys measurements and capacity studies to assess this technology with a focus on small cell deployments in urban environments.

 In [5] paper, provides an overview of the features of fifth generation (5G) wireless communication systems which developed for use in the mm-Wave frequency bands for measurement.  In [6], describes wideband (1 GHz) base station diversity and coordinated multipoint measurements. At the result, 73 GHz in an urban microcell open square scenario in downtown.  In [7],presents a novel ultra wide band wireless spread spectrum millimetre-wave (mm-Wave) channel Which supports both a wide bands lidding correlated mode and a real time spread spectrum mode.  In[8], This paper presents a comparison study of LOS and NLOS performance in The 28 GHz band for mm-Wave wireless networks.

 [9],studies past rural microcell (RMa) path loss models exposes concerns with the current 3rd Generation Partnership Project (3GPP). describes the path loss and time dispersion estimated for 5G channels at 28 GHz frequency for LOS and NLOS environments and the radio propagation mechanisms that impacts the performance of the network.

A novel channel simulation software is called NYUSIM Which can be used to generate realistic temporal special channel responses to support realistic physical link layer simulations design for the 5G technology.

Los channel data for directional Los channel data for omnidirectional

NLOS channel data for directional NLOS channel data for omnidirectional

 To overcome the atmospheric effects like rain, humidity, temperature on 5G wireless network.  It can be expect that it will provide a better network speed more than 1Gb/s.  Higher bandwidth.  Lower Path loss.  Higher frequency for communicating purposes.

 Our purpose is to increase received signal power, by changing the frequency 15,28,37,60,64,71and 73HZ for NLOS channel.  establish a viable transmission link by experimenting on directional and omnidirectional antennas.  Reducing atmospheric noise which is the result of atmospheric effect on non-line of sight(N-LOS) channel.

 5G technology is the future of technology of the world which change the face of the world market entirely.  5G technology is going to give tough competition to computers and laptops.  All totally the best way to help all users is to use 5G as the next wireless system  In totally,it is safety and secure for public and the need that demands the solution.

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