SOFT FREQUENCY REUSE FOR MILIGATION OF INTERCELLULER INTEREFERENCE

Background. The appearance of femtocells in LTE networks has provided indoor coverage and overcome large data flows for operators. However, strong interference occurs neighbouring femtocell users due to the limited available spectrum cellular that transmit same radio range. In densely deployed environments, issues single-channel cause significant performance degradation. this study, we mitigate inter-cell by combining as a result common soft frequency reuse downlink uplink moving exchanging interfering physical blocks.
 Objective. purpose paper is improve efficiency ensuring quality services wireless reducing any distribution traffic, which able provide uninterrupted connection user.
 Methods. Enabling conditions mitigation LTE-based with reuse.
 Results. Interference key issue deployment femtocells. Closely located interfere each other if they on frequency. Therefore, crossing enabling them allocate resources frequencies effectively reduces prevents loss network resources. scheme triggered whenever user's femto equipment experiences from By assigning separate set resource blocks at edge cell, our significantly interference, automatically increases cell throughput. simulation results show advantages applying scheme, particular, femto-equipment reduced 14% throughput improved 25%. That is, observe improvement femtocells.
 Conclusions. A presented reduce between networks, allows service transmission increasing through traffic distribution.