Investigation of Free Space Path Loss Modelfor Microwave Radio Frequency Bands in Backhaul Communication Networks

In the recent times Microwave Radios have been a key technological source for establishing backhaul communication between the Hub Operations Centre to remote entities. Especially in the event of natural catastrophes where backhaul communication has to be established swiftly in less operational interval. Therefore this makes Microwave Radios to be the best adaptive solution to adopt in any natural calamity or manmade tragedy. Further Microwave radios can offer high data rate bandwidth for streaming of voice, video and data applications in Point to Point (PTP) and Point to Multi Point (PTMP) Mode of deployment. Thus which makes microwave radios an appropriate solution for deployment of High Bandwidth consumption applications. Authors in this research have proposed the use of different Microwave Radio Frequency Bands from 1 GHz to 10 GHz and Parabolic Dish antennas as per requirement of the application and scenario of deployment. Microwave net data throughput rates vary at different Radio Frequency Bands, Plus the Free Space Path Loss characteristics, Fade Margin, Receive Signal Strength Indicator (RSSI), Bit Error Rates (BER) and Signal to Noise Ratio (SNR) are also affected with increase and decrease of hop distance length between the transmitting and receiving antennas.