This paper deals with the outdoor path loss behavior. The study has been conducted in Mosul city Iraq to fit a suitable propagation model to measured data at 900 MHz and 1800 MHz in urban and suburban environment. The empirical models dealt which are Hata, Cost-231 Hata, international Telecommunication Union (ITU-R), Ericsson and Stanford University Interm (SUI). Path loss accuracy of the fitting of the empirical models to the measured data is estimated using Root Mean Square (RMS) error.

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Mobility is the distinct feature of wireless mobile cellular system. Usually, continuous services is achieved by supporting handoff which is the transfer of an ongoing call from the current cell to the next adjacent cell as the mobile moves through the coverage area. usually handoff calls are given higher priority than new calls since it has a significant impact on the network performance. Simulation study of the relative signal strength with hysteresis and threshold (RSS-HT) algorithm for varying hysteresis and threshold are studies to evaluate the mean number of cell handoffs, mean number of wrong cell handoffs and expected average signal strength.

Long terms evolution (LTE) allows using new and wider spectrum up to 20MHz with high data rates and lower latency. This paper provides analysis of the concept of heterogeneous networks as compared to homogenous networks on a realistic scenario of Mosul city and discusses the need for an alternative deployment model and topology to enhance the performance of network. It is clearly demonstrating the need for using inter-cell interference coordination (ICIC) methods to achieve a good performance for network especially at the cell edge. Heterogeneous network enables flexible and low-cost deployments and it has attractive solution for non-uniform traffic distribution or needed a special service in hot-spot.

No abstract