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Capacity enhancement and Performance evaluation in 4G LTE-Advanced networks using Sectored Relaying

Mehboob ul Amin

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Abstract


Cell interference and coverage shortage of base stations result in low Signal to Interference plus Noise Ratio (SINR) and poor spectral efficiency. To overcome these problems in 4G LTE-Advanced networks – A new method of capacity enhancement and performance evaluation using Sectored Relaying is proposed in this paper. The main focus is laid on the selection of the location for the relay node (RN) in the cellular network so that Access Link attains much improved performance in terms of throughput capacity and Signal to Interference plus Noise Ratio (SINR) besides improving the quality of wireless relay backhaul link. A mathematical model of the proposed system in terms of throughput capacity, path loss attenuation and Access Link SINR has been developed. The Mathematical Modeling of the proposed system has been verified by the simulations carried on Matlab 14. A significant improvement has been observed from the results, which justify the need for sectored relaying in relay enhanced networks. The parameters for simulation have been used in accordance with 4G LTE standard. Moreover, it has been observed that the proposed technique has lesser complexity with minimal deployment expenditure and performs better than the existing techniques.


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References


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Mattia Minelli, Maode Ma, Marceau Coupechoux, Jean-Marc Kelif, Marc Sigelle, and Philippe Godlewski , “Optimal Relay Placement in Cellular Networks,” IEEE Transactions on Wireless Communications, vol. 13, no. 2, February 2014

Xiaoxia Zhang, IEEE, Xuemin (Sherman) Shen, “Joint Subcarrier and Power Allocation for Cooperative Communications in LTE-Advanced Networks” IEEE Transactions on Wireless Communications, vol. 13, no. 2, February 2014

Omri.A, Hasna, M.O, et al, “Novel Cooperative Communication Schemes with Interference management for multi-user wireless networks”, IEEE International Conference on Communications (ICC) 2013.

Omer Bulacki, Hamalainen et al “Performance of Coarse Relay Site Planning in composite Fading/Shadowing Environments.”IEEE 24thInternational symposium on Personal Indoor and Mobile Radio Communications (PIMRC), 2013.

S. H. Song, Ali F. Almutairi, and K. B. Letaief, “Outage-Capacity Based Adaptive Relaying in LTE-Advanced Networks” IEEE Transactions on wireless communications, vol. 12, no. 9, September 2013.

D.H.te Hennepe, J.L van DenBerg et al, “Impact of Relay Station positioning on LTE uplink performance at flow level” IEEE Global Communication Conference (GLOBECOM), 2012

M. H. Islam, Z. Dziong, K. Sohraby, M. F. Daneshmand, and R. Jana,“Capacity-optimal relay and base station placement in wireless networks,”in Proc. 2012 IEEE Int. Conf. Inf. Netw.

Bou Saleh ,Omer Bulacki, H.Jayri,Simone Redana and Bernhard Raaf “Analysis of Site Planning on the performance of Relay Deployments”, IEEE Transactions on Vehicular Technology Vol. 61,No 7,September 2012.




DOI: http://dx.doi.org/10.15520/ajcem.2016.vol5.iss1.45.pp12-16.

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