Paper Title
Performance Evaluation of Relays on Rural Macro Cell environments for LTE-Advanced

Abstract
Relay stations (RS) has an essential role in throughput. It makes the rate of data high and improve the coverage of LTE-Advanced. Among the most useful solution to throughput by increasing the rate and coverage is the use of fixed relays (FR)to transfer data among eNB and UE via multi hop communication. The purpose of this paper is to propose a solution of an optimal deployment using various locations and height of antenna relays. This is conducted by implementing and analyzing several scenario including up to 10 relays deploying two cooperative relaying strategies namely: AAF and DAF. Using this method, the data is transmitted between eNBand UE via multi-hop communication over WINNER channel model in Rural microcells of LTE-Advanced networks Environment. To determine the optimal deployment, the number of relays, location, and height of antenna is evaluated at targeted SER or SNR. Findings of simulation indicated that relay substantially increases the link performance compared with direct connection. In addition, the AAF was proven to be better than DAF. Furthermore, the optimal deployment occurred in several stage. First using the 4-8 relays with having relay close to eNB. Second, with 6~8 relays as relays is placed around the celledge. Lastly, with 2~6 relays when relays is placed near the cell edge to extend coverage. The analysis results show that Relay antenna height has improved the performance when increasing the antenna height Relay. Keywords - Relay Deployment, Height Antenna, WINNER, macro Cell, LTE-Advanced.