Optimized Performance Evaluation of LTE Hard Handover Algorithm with Average RSRP Constraint

TL;DR

This paper introduces LHHAARC, a new LTE handover algorithm that reduces handovers and delay while increasing throughput, validated through simulations comparing it with existing algorithms.

Contribution

The paper proposes LHHAARC, an optimized LTE handover algorithm with RSRP constraints, improving performance over existing methods.

Findings

LHHAARC reduces average handovers per user.

LHHAARC achieves shorter system delay.

LHHAARC maintains higher system throughput.

Abstract

Hard handover mechanism is adopted to be used in 3GPP Long Term Evolution (3GPP LTE) in order to reduce the complexity of the LTE network architecture. This mechanism comes with degradation in system throughput as well as a higher system delay. This paper proposes a new handover algorithm known as LTE Hard Handover Algorithm with Average Received Signal Reference Power (RSRP) Constraint (LHHAARC) in order to minimize number of handovers and the system delay as well as maximize the system throughput. An optimized system performance of the LHHAARC is evaluated and compared with three well-known handover algorithms via computer simulation. The simulation results show that the LHHAARC outperforms three well-known handover algorithms by having less number of average handovers per UE per second, shorter total system delay whilst maintaining a higher total system throughput.