Journal Articles - Engineering Technology - 2019
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PublicationProduction of Polyclonal Rabbit IgG against Dog IgG: Orientation for Applications in Immunological Diagnosis of Dog Diseases( 2019)Dogs are one of the most popular pets in many parts of the world. The need to diagnose dog diseases using immunological assays is constantly increasing. This study aims to produce anti-dog IgG antibodies from rabbits for use in immunological diagnosis in dogs. To achieve this, the dog‘s refined IgG is used as an antigen to cause an immune response in rabbits. Specific rabbit IgG is then purified from serum by precipitation method with 45% saturated amonium sulfate salt, protein G affinity chromatography and dog IgG affinity chromatography. The purity of rabbit IgG reached 95.3% based on SDS-PAGE analysis. The specific activity of purified IgG is confirmed by dot blot assay. These results suggest that rabbit anti-dog IgG antibodies produced in this study can be applied to immunological diagnosis of dog diseases
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PublicationResource sharing and segment allocation optimized video streaming over multi-path in dense D2D 5G networks( 2019)The rapid increase in mobile users (MUs) and variousvideo applications and services (VASs) poses a set ofchallenges to 5G networks. Although device-to-device (D2D) communications and resource reusetechniques can improve the streaming performanceof VASs, they have not utilized the fact that there aremany MUs with available sharing downlink resources,namely cellular users (CUs), and many videos cached in dense MUs to establish an efficient videostreaming session. In this paper, we propose adownlink resource sharing and segment allocation(RSA) optimization problem and solve it for highvideo streaming performance over multi-hop multi-path (MHMP) in dense D2D 5G networks. Particularly,the RSA provides a maximum capacity for the CUsthat share their downlink resources with the D2Dhops in each path by finding the optimal downlinkresource sharing-receiving pairs between the CUsand the D2D hops. Then, the segments of a videocached in different D2D helpers (DHs) are sent to theD2D requester (DR) over the MHMP. By finding whichsegments are allocated to which paths for sending,the reconstructed distortion of the received segmentsat the DR is minimized for high playback quality.Simulation results are shown to investigate thebenefits of the proposed solution compared to otherschemes without RSA.
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PublicationEnabling D2D Transmission Mode with Energy Harvesting and Information Transfer in Heterogeneous Networks( 2018)The concept of energy harvesting-assisted relay has been introduced to support the relaying transmission using Device-to-Device (D2D) communications for enhancing communication reliability. Motivated by the recent advance in Heterogeneous Network (HetNet) using relaying techniques, we consider the D2D communication provided by Energy Harvesting (EH) assisted relay where signal is forwarded from a Base Station (BS) to the conventional cellular user (non-D2D user) and D2D user. We first derive the outage probability by taking into account the SNR and power allocation parameters, and propose the transmission mode for D2D link as well as non-D2D link. After deriving the outage probability of the D2D-HetNet, we explore the effects of the network parameters on the outage probability and throughp
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PublicationExploitting Performance Of Miso Based Non-Orthogonal Multiple Access( 2019)This paper examines non-orthogonal multiple access (NOMA) and explores the effect of multiple antenna equipped at base station to serve many users who expect to multiple access to core network. This system model using multiple input single output (MISO) contributes enhancement on the outage performance of two NOMA end-users. We first introduce a simple model of power distribution to NOMA users who use both direct link and relay link to improve quality of transmission. Inspired by NOMA strategy, we then identify signal to noise ratio to discover separated signal for each user, and exact expressions of outage probability are developed in assumption that receiver can eliminate the interference completely with successive interference cancellation. Theoretical and simulation results show that the both suggested models can achieve the remarkable performance improvement of two NOMA users
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PublicationCognitive Radio Assisted Non-Orthogonal Multiple Access: Outage Performance( 2019)In this paper, the performance of overlay cognitive radio (CR) in secondary networks as utilizing non-orthogonal multiple access (NOMA) is examined. We consider transmission quality from the relay to the far NOMA users who expect to multiple access to core network. In this system model, weak users who have weak signal and weak channel condition are focused on. Our proposal analysis contributes to improve the outage performance of far NOMA end-users. We first identify signal to noise ratio (SNR) to discover separated signal for each user, and exact expressions of outage probability is examined in assumption that receiver can delete the interference with successive interference elimination completely. Then, we determine outage and throughput performance based on the noise ratio signal (SNR) achiveved. Theoretical and simulation results prove that the both proposed models can attain the outstanding performance enhancement in secondary network for far NOMA users.