• Ravi Kumar
• Sumiran
• Sumit Dalal

Use of wireless communication is increasing day by day at exponential rate. Number of data users and wireless devices are increasing effectively. Hence, network providers are demanded to provide higher data rates. Evolution of LTE-Advance networks has developed a bright hope in this context. Continuous work is being done to find the ways to meet the requirements of IMT-Advance like data rate of 1Gbps. To achieve such a high data rate, high channel capacity and proper utilization of spectrum is required. Many techniques have been introduced to improve the performance of LTE-A networks like MIMO, Layer 3 relay, Heterogeneous networks, network coding, COMP, Carrier Aggregation etc. Out of these, Carrier Aggregation (CA) is most notable as it solves the problem of limited bandwidth by combining components carriers. In this paper, we have discussed about LTE-Advance networks their features and then, a review on carrier aggregation is presented.

LTE-A, carrier aggregation, component carrier, quality of service, IMT-Advance, OFDM, Scheduling

"Carrier Aggregation - Improved Downlink Scheduling in LTE-Advanced Networks", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 6, page no.317-324, June-2018, Available :http://www.jetir.org/papers/JETIR1806292.pdf

"Carrier Aggregation - Improved Downlink Scheduling in LTE-Advanced Networks", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 6, page no. pp317-324, June-2018, Available at : http://www.jetir.org/papers/JETIR1806292.pdf