International Journal of Computational Engineering Research (IJCER)
In this paper, the authors give an overview on call handover process in cellular communication network. Mobility is key issue in current and future cellular networks such as GSM, UMTS and LTE. The handover process impacts on Quality of Service (QoS) for network provider. If this process accomplishes inaccurately handover can result in loss of call. Handover is the process in which active call is transferred from one cell to another cell as the subscriber moves all over the coverage area of cellular network. Received signal level, received signal quality etc. parameters play vital role in handover decision process.