A Survey on Handover in LTE Heterogeneous Networks

The Long-Term Evolution technology called 4G is a recent expertise that was presented by 3GPP for smooth system migration. The main issues in LTE networks are controlling overhead and overlapping in network controlling circuit. Signal Traffic is increased by a large number of connections. This will also increase the consumption of energy in the network. In cellular mobility management, handover is the major component of LTE. Handover is basically a process or mechanism that helps to move one call from one base station to another. Handover delay and complexity are being reduced by the use of Hard Handover. This work presents a review of Handover techniques under LTE to optimize its performance. This work summarizes various challenges that came under the handover system and the solutions to handle it. It presented various algorithms related to handover that improved the system performance by handling handover failure. The design of a successful system under handover is being done by the use of suitable handoff parameters and its optimization setting. It presents various handover techniques to improve the throughput of the network so that system performance can be enhanced.

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