To provide support for both data and voice is essential requirement of present mobile networks both LTE and UMTS networks. In this work, we studied the heterogeneous wireless communication, as a joint collaborative orientation of different Radio Access Technology through which network produce can fulfill as possible as a large variety of user service difficulties in a more efficacious modality by) UMTS/LTE( is also increasing. The Proposed Model assumes that (HWN) based on two different (RATs) these technologies coexist, namely [UMTS, LTE]. Evaluate the performance of a heterogeneous network after applying the proposed load balance algorithm. Study the effect of load balance on each network during the change in height of the transmitter antenna and receiver antenna and change the location of the user from the network and the effect of these shows through the loss of output in each network. Furthermore, appraised changing Mobile Station (MS) antenna height, transmitter-receiver (T-R) separation distance and Base Station (BS) antenna height, seeing the system to work at applied for both LTE and UMTS network. This enhancement accompanied through the decrease of intervention and enhancement in excellence of service obtainable to the end user and find out the causes for the blocking phenomena.
