Throughput evaluation for the downlink scenario of co-tier interference in heterogeneous network

Mohammad Kamrul Hasan, Ahmad Fadzil Ismail, Aisha Hassan Abdalla, Wahidah Hashim, Shayla Islam

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2 Citations (Scopus)


To extend the coverage and capacity of Heterogeneous Networks (HetNets), femtocells (HeNodeBs) has been impressive to deploy in in-house or apartment. Owing to co-channel spectrum involvement these HeNodeB sources Co- Tier interference (CTI) with neighbor HeNodeBs and users of HeNodeB (HUE) in orthogonal frequency division multiplexing Access (OFDMA). As a result, CTI is occurred which causes of system throughput degradation. This paper investigates the OFDMA subcarrier allocation techniques and algorithms. A Genetic Algorithm based Subcarrier Allocation (GA-SA) framework is evaluated to enhanced throughput of HeNodeB and HUE. The enhancement of the system throughput and Signal to Interference Noise Ratio (SINR) is analyzed to mitigate CTI. The system level simulation is considered to evaluate the performance of the framework. The results show that the throughput is enhanced for HUE and HeNodeB, which can mitigate the CTI in OFDMA.

Original languageEnglish
Pages (from-to)9664-9668
Number of pages5
JournalARPN Journal of Engineering and Applied Sciences
Issue number21
Publication statusPublished - 01 Jan 2015


All Science Journal Classification (ASJC) codes

  • Engineering(all)

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