Improvements in Spectrum Sharing Towards 5G Heterogeneous Networks

International Journal of Electronics and Communication Engineering

© 2019 by SSRG - IJECE Journal

Volume 6 Issue 3

Year of Publication : 2019

Authors : Michael Joseph Shundi, Grace Gregory Mihuba, Winnie Griffin Zakayo, Toshtemirov Adkhamjon

10.14445/23488549/IJECE-V6I3P101

How to Cite?

Michael Joseph Shundi, Grace Gregory Mihuba, Winnie Griffin Zakayo, Toshtemirov Adkhamjon, "Improvements in Spectrum Sharing Towards 5G Heterogeneous Networks," SSRG International Journal of Electronics and Communication Engineering, vol. 6,  no. 3, pp. 1-9, 2019. Crossref, https://doi.org/10.14445/23488549/IJECE-V6I3P101

Abstract:

Spectrum frequency is a resource with limited availability, though it is the essential drive to communication systems. The upcoming development of communication networks to upkeep mega-fast broadband services and the underutilization of the licensed spectrum has led to excessive scarcity and henceforth a high demand for the spectrum frequency. This scarcity put importance on the efficient usage of spectrum frequency. However, spectrum sharing between 5G heterogeneous networks is lately being considered to be a resolution to the issue of spectrum frequency scarcity in the future of wireless networks. In this manuscript, we presented the spectrum sharing scenario between collocated overlapped multiple-input multiple-output (MIMO) radar (Overlapped-MIMO radar) and MIMO cellular communication network. We proposed radar antenna arrangement and beam pattern design, which reduces the interference to the MIMO cellular communication network while retaining MIMO radar's performance; specifically, it enhances side-lobe suppression in the beampattern and attains higher signal to noise (SNR) gain. Also, the designed projection sharing algorithm suppresses interference to the MIMO cellular communication network when radar signals are projected onto the communication channel's null space. Simulation results show the MIMO radar's performance when sharing spectrum with the MIMO cellular communication network.

Keywords:

Spectrum frequency, MIMO Cellular Communication networks, Spectrum sharing, Overlapped MIMO Radar. Interference, Radar signal. Null-space projection (NSP), beampattern (s), Overlapped MIMO Radar, Collocated MIMO Radar

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