• Shrishti N. Bhatia
• Dr. Ashwini Kunte

Abstract – Long Term Evolution-Advanced (LTE-A) aims to provide high data rate, high spectral efficiency, improved throughput and Fairness to users in the cell as well in the indoor area in different traffic conditions. A low power base station, Femto-cell can be installed in indoor areas for indoor coverage in LTE-A networks. By using Base station Transmit Power control, the network performance is improved as Cross channel Interference reduces. This improves the user’s throughput. Further, proper Packet Scheduling by the Radio Resource Management (RRM) will enhance the performances of the wireless heterogeneous LTE-A network by reducing the co-channel interference. Presently, Downlink scheduling algorithms viz : Round Robin, Best-CQI and Proportional Fair are used in LTE/LTE-A. A new hybrid scheduling algorithm is proposed in this paper. The proposed hybrid algorithm is simulated using Vienna LTE-A simulator. The performance of the proposed algorithm is compared with the Round Robin, Best-CQI and Proportional Fair down-link scheduling algorithms in LTE-A. In this proposed scheme, one sub-frame time slot is divided into two sub time slots. In the first time sub slot, the User equipment (UE) Channel Quality Indicator (CQI) feedback report is considered and the resource blocks are assigned to the UE with best CQI. In the next time slot, resource blocks will be assigned to all the users which are connected only if traffic exists to achieve proper fairness. Simulation results proves that the proposed scheme improves the tradeoff between Average user throughput and Fairness Index in comparison with existing Round Robin, Best-CQI and Proportional Fair downlink Scheduling algorithms.

Long term Evolution- Advanced, Downlink Packet Scheduling, Radio Resource Management, Throughput, Spectral Efficiency, Fairness.

"PERFORMANCE ENHANCEMENT OF TWO TIER WIRELESS NETWORK USING AN ADAPTIVE HYBRID SCHEDULING ALGORITHM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 2, page no.187-193, February-2019, Available :http://www.jetir.org/papers/JETIR1902626.pdf

"PERFORMANCE ENHANCEMENT OF TWO TIER WIRELESS NETWORK USING AN ADAPTIVE HYBRID SCHEDULING ALGORITHM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 2, page no. pp187-193, February-2019, Available at : http://www.jetir.org/papers/JETIR1902626.pdf