Managing the Interference for Down-Link in LTE Using Fractional Frequency Reuse
Abstract
Long Term Evolution has developed a new radio technology called femtocell or Femto Base station, which is well-suited to improve cellular network capacity and mobile coverage to indoor user's areas. Providing additional capacity and coverage expansion through FBSs could lead to large interference in a cellular radio communication network. In this paper, we proposed an efficient resource allocation scheme based on Fraction Frequency Reuse (FFR) for interference mitigation, where the entire spectrum is shared among network entities. FFR mechanism aims to reduce co-tier and cross-tier downlink interferences by allocating non-overlapping sets of bands to the user equipment at different geographic locations. The main purpose of this work is to compare two main types of FFR schemes, respectively, Strict FFR and Soft Frequency Reuse with the proposed scheme. The three types of FFR schemes were explained and evaluated with Monte-Carlo simulation based on some performance metrics, namely, sum-rate, spectral efficiency, and outage probability. Simulation results showed that the impacts of the proposed scheme are significantly high in comparison with two other methods. The proposed scheme proved to enhance spectral efficiency, reduced the outage probability, and increased the sum rate for all the users.
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Bennis, M., Giupponi, L., Diaz, E. M., Lalam, M., Maqbool, M., Strinati, E. C., De Domenico, A., & Latva-aho, M. (2011). Interference management in self-organized femtocell networks: The befemto approach. In 2011 2nd International Conference on Wireless Communication, Vehicular Technology, Information Theory and Aerospace & Electronic Systems Technology (Wireless VITAE) (pp. 1-6). IEEE.
Chandrasekhar, V., Andrews, J. G., & Gatherer, A. (2008). Femtocell networks: a survey. IEEE Communications Magazine, 46(9), 59–67.
Chandrasekhar, V., Andrews, J. G., Muharemovic, T., Shen, Z., & Gatherer, A. (2009). Power control in two-tier femtocell networks. IEEE Transactions on Wireless Communications, 8(8), 4316–4328.
Chang, R. Y., Tao, Z., Zhang, J., & Kuo, C. C. (2009). A graph approach to dynamic fractional frequency reuse (FFR) in multi-cell OFDMA networks. In 2009 IEEE International Conference on Communications (pp. 1-6). IEEE.
Chu, X., Wu, Y., Benmesbah, L., & Ling, W. K. (2010). Resource allocation in hybrid macro/femto networks. In 2010 IEEE Wireless Communication and Networking Conference Workshops (pp. 1-5). IEEE.
Claussen, H. (2007). Performance of macro-and co-channel femtocells in a hierarchical cell structure. In 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications (pp. 1-5). IEEE.
Cullen, J. (2008). Radio frame presentation, Femtocell Europe 2008. London, UK, June.
Han, S. S., Park, J., Lee, T.-J., Ahn, H. G., & Jang, K. (2008). A new frequency partitioning and allocation of subcarriers for fractional frequency reuse in mobile communication systems. IEICE Transactions on Communications, 91(8), 2748–2751.
Hassan, N. U., & Assaad, M. (2009). Optimal fractional frequency reuse (FFR) and resource allocation in multiuser OFDMA system. In 2009 international conference on information and communication technologies (pp. 88-92). IEEE.
Ho, L. T., & Claussen, H. (2007). Effects of user-deployed, co-channel femtocells on the call drop probability in a residential scenario. In 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications (pp. 1-5). IEEE.
Krause, J. (2012). Future 3GPP RAN standardization activities for LTE. Wireless World Research Forum, 29, 10.
Lee, P., Lee, T., Jeong, J., & Shin, J. (2010). Interference management in LTE femtocell systems using fractional frequency reuse. 2010 The 12th International Conference on Advanced Communication Technology (ICACT), 2, 1047–1051.
Madan, R., Sampath, A., Bhushan, N., Khandekar, A., Borran, J., & Ji, T. (2010). Impact of coordination delay on distributed scheduling in LTE-A femtocell networks. 2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 1–5.
Mahmud, A., & Hamdi, K. A. (2014, April). On the co-channel femtocells exclusion region in fractional frequency reuse macrocells. In 2014 IEEE Wireless Communications and Networking Conference (WCNC) (pp. 2306-2311). IEEE.
Santos, R. B., Lima, F. R. M., Freitas, W. C., & Cavalcanti, F. R. P. (2007). QoS based radio resource allocation and scheduling with different user data rate requirements for OFDMA systems. In 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications (pp. 1-5). IEEE.
Shin, D., & Choi, S. (2012). Dynamic power control for balanced data traffic with coverage in femtocell networks. In 2012 8th International Wireless Communications and Mobile Computing Conference (IWCMC) (pp. 648-653). IEEE.
DOI: https://doi.org/10.17509/ijost.v5i3.25636
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