Modern technology is essential for all healthy, economic, and educational sectors. Using modern involves high-performance networks in terms of quality service (QoS) parameters such as delay, throughput, bandwidth, security. A campus network wire the wireless environment with without virtual local area (VLAN) has been simulated using optimized engineering tools (OPNET). The simulation model includes four scenarios that involve heavy-loaded File transfer protocol (FTP) web browsing...

Light fidelity (LiFi) is one of the most promising areas within wireless optical communication system. It provides many benefits, including high capacity, improved security and enhanced cost-effectiveness. However, there still challenges which are link blockages, attenuation, interference bandwidth restriction modulation techniques. Orthogonal space–time block coding (OSTBC) offers a suitable solution to address blockage by providing an alternative channel between transmitter receiver. OSTBC...

The need for data transmission systems that are high-speed, secure, and reliable increases as wireless communication technologies continue to advance rapidly. Light fidelity (LiFi) can meet this through its several advantages, including high rates, low electromagnetic interference, indoor localization capabilities. This study proposes a hybrid LiFi transceiver, which utilizes technology using orthogonal space–time block coding (OSTBC), based on the spatial multiplexing (SM) transmit...

<p><span>Wireless local area networks (WLAN) has been used recently due to their benefits which exhibits outstanding mobility with easier and faster configurations. The wireless network performance is much influenced by both topology hardware specifications thus will impact the quality of service (QoS) parameters are delay, load, response time. This works estimated WLAN in enterprise WAN based on OPNET modeler. Three scenarios have suggested FDDI scenario, Hybrid Star hybrid ring...

A digital communications receiver requires precise symbol synchronization before the transmitted information can be recovered. Gardner's algorithm is a synchronizer that acquire and track timing with only two samples per symbol, it does not require prior carrier synchronization. In this paper, feed-forward, all-digital version of presented. It shown effective when used in wireless Alamouti space-time coded system. Besides retaining its immunity to frequency offset, knowledge channel gains....

The emergence of Coronavirus disease 2019 (COVID-19) and its rapid spread around the world has serious impacts on people's lives in addition to effects many aspects, including economic educational sectors. Researches have proved that social distance is effective combating COVID-19. Maintaining hard be handled by humans especially crowded areas such as airports campuses. So, there a need apply robust proactive design manage this process automatically smartly. This paper presents system fight...

In the developed world, it is necessary to save natural environments. A lot of incidents human-made and catastrophes were occurring around world. Forest fires are one these environment disasters. The goal this research construct develop a cloud system which can detect exact location forest fire spreading speed direction fire. be directly monitored on Google Maps application. An interpolation algorithm has been suggested determine time required for an known point forest. This will give...

Light fidelity (LiFi) is one of the most promising areas within wireless optical communication system. It provides many benefits, including high capacity, improved security and enhanced cost-effectiveness. However, there still challenges which are link blockages, attenuation, interference bandwidth restriction modulation techniques. Orthogonal space–time block coding (OSTBC) offers a suitable solution to address blockage by providing an alternative channel between transmitter receiver. OSTBC...