Interference Mitigation Optimal Dynamic Fractional Frequency Reuse (OD-FFR) Scheme in LTE Networks
نویسندگان
چکیده
Fractional Frequency Reuse is an interference mitigation technique well suited for OFDMA system where the cell region is partitioned into two: inner cell region and outer cell region. In this paper we proposed an interference mitigation technique in LTE OFDMA femtocell system using Fractional Frequency Reuse (FFR) also system in order to improve performance of the system resource allocation is used. Using FFR scheme, femtocells chooses the sub-bands under the macrocell allotted frequency band that are not used in the macrocell sub-region to avoid interference. System simulation are done to evaluate and compare the effects of changing inner cell shape and selects the optimal size as well as optimal frequency allocation
منابع مشابه
Selecting the Optimal Fractional Frequency Reuse Scheme in Long Term Evolution Networks
Long Term Evolution (LTE) networks offer high capacity and are specified and designed to accommodate small, high performance, power-efficient end-user devices. One limiting factor that influences LTE performance is the interference from neighbouring cells, the so called Inter-Cell Interference (ICI). The investigation of ICI mitigation techniques has become a key focus area in achieving dense s...
متن کاملDynamic Frequency Partitioning Scheme for LTE HetNet Networks Using Fractional Frequency Reuse
Femtocell networks are a promising solution to enhance the capacity of the LTE networks, especially for the indoor environments. However, unplanned deployment of the femtocells causes the co-tier interference and cross-tier interference. The interference limits the advantages of deploying the femtocell networks. The Fractional Frequency Reuse (FFR) concept is introduced to mitigate the effect o...
متن کاملA Simulation Framework for the Evaluation of Frequency Reuse in LTE-A Systems
Long Term Evolution Advanced (LTE-A) technology is considered as the most possible candidate for next generation mobile communications. LTE-A networks offer high capacity and are specified and designed to accommodate small, high performance, power-efficient end-user devices. Similarly to its predecessor LTE, LTE-A incorporates inter-cell interference mitigation methods in order to mitigate inte...
متن کاملThroughput Performance for Heterogeneous LTE Network by Using Fractional Frequency Reuse Method
In cellular system, Fractional Frequency Reuse (FFR) is partition each cell into two regions which are the cell center region and cell edge region. The dissimilar frequency band is owed to each region in cell. The FFR method may reduce channel interference and achieve large system capacity and hence increases the throughput. Long Term Evolution (LTE) has developed a femtocell for indoor coverag...
متن کاملPerformance of Hybrid Network in Fractional Frequency Reuse and Femtocell Power Control Schemes
The Fractional Frequency Reuse (FFR) scheme combines the benefits of universal Frequency Reuse and Frequency Reuse Factor (FRF)3. Universal Frequency Reuse scheme has high spectral efficiency while FRF=3 scheme is normally used to mitigate Intercell Interference (ICI) in a cellular system. Nevertheless, the advancement of the wireless technology does not stop here. The trend of Long Term Evolut...
متن کامل