Performance Optimal for Deploying Relays in Urban Micro Cells on LTE-Advanced Technology
Abduljalil Saif1, Mahamod Ismail2, Rosdiadee Nordin3, Mohammed Fadhil4, Nor Fadzilah Abdullah5

1Abduljalil Saif*, Dept. of Electrical, Electronic and System Engineering University Kebangsaan Malaysia, UKM Bangi, Selangor Darul Ehsan, Malaysia.
2Mahamod Ismail, Dept. of Electrical, Electronic and System Engineering, University Kebangsaan Malaysia, UKM Bangi, Selangor Darul Ehsan, Malaysia
3Rosdiadee Nordin, Dept. of Electrical, Electronic and System Engineering, University Kebangsaan Malaysia, UKM Bangi, Selangor Darul Ehsan, Malaysia.
4Mohammed Fadhil, Dept. of Electrical, Electronic and System Engineering, University Kebangsaan Malaysia, UKM Bangi, Selangor Darul Ehsan, Malaysia
5Nor Fadzilah Abdullah, Dept. of Electrical, Electronic and System Engineering, University Kebangsaan Malaysia, UKM Bangi, Selangor Darul Ehsan, Malaysia
Manuscript received on December 14, 2019. | Revised Manuscript received on December 22, 2019. | Manuscript published on January 10, 2020. | PP: 2145-2155 | Volume-9 Issue-3, January 2020. | Retrieval Number: C8760019320/2020©BEIESP | DOI: 10.35940/ijitee.C8760.019320
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Cooperative Relay is a promising enhancement to modern radio technologies which has been considered in LTE-Advanced and IEEE 802.16m technologies. Cooperative Relay is one of the technologies that used to improve coverage in downlink mobile network. The work is done by designing numerous environments for LTE-Advanced networks involving relays, whereby using vertical distributions of relays for both AAF & DAF techniques as well as comparison between the performances optimal of both techniques on urban micro cell for LTE-Advanced Technologies, Insertion the channel model from WINNER project. The performances optimal of non-Cooperative Relay and Cooperative Relay are evaluated in terms of Symbol Error Rate (SER) and Signal-to Noise-Ratio (SNR). The simulation results show that relay technologies can effectively improve system performance. On the other hand, 10-Relay in vertical distributions clearly shows outperforms on other environments and, when the relay put near, middle and far from Evolved Node B (eNB), the result shows at SER of 10-3 the system that employs AAF technique outperforms on the system that employs DAF technique in LTE-A system by about 6.5 dB, 2.5 dB and 2 dB sequent. 
Keywords: Deploying Relays, WINNER, OFDM, LTE-A, MMSE.
Scope of the Article:  Optimal Design of Structures