Abstract
Wireless communications, nowadays, becomes a vital element of people’s daily life. Providing global connectivity in future communication systems via the heterogeneous network opens up many research topics to investigate potentialities, enabling technologies, and challenges from the perspective of the integrated wireless systems. This paper aims to drive a comprehensive and comparative study on terrestrial-aerial platforms- satellite wireless communications systems, includes their characteristics and unravelling challenges. The comparison focuses on issues that reportedly can evaluate any wireless systems for temporary events. These issues are altitude and coverage, Radio Frequency (RF) propagation, interference, handover, power supply constraints, deployment and maintenance challenges, reliability on special events or disaster relief, cost-effectiveness and environmental impact. Last, Quality of service (QoS) performance is analysed for the four wireless communication systems from the temporary events perspective using the OPNET Modeller simulation tool. Results infer that space-based wireless systems outperform terrestrial ones.
Highlights
Wireless communications enable information to be transmitted over a distance between two points or more, such as radio communication, without the need of cables, wires, or any other electrical conductors
Based on the above discussion and comparison, the selected wireless communication systems will be evaluated with respect to parameters includes:End-to-end delay, jitter, Mean Opinion Score (MOS), and Throughput. Evaluating these parameters can help in Ad hoc network planning, and assessing Quality of service (QoS) requirements using freespace propagation model for all architecture Systems
Several simulation runs have been performed for each wireless system to measure delay, jitter, MOS, and throughput using the Optimized Network Engineering Tool (OPNET) Modeller simulation tool, as following fig.5 to fig.8 show
Summary
Wireless communications enable information to be transmitted over a distance between two points or more, such as radio communication, without the need of cables, wires, or any other electrical conductors. Wireless systems and services have been evolving swiftly as one of the most essential means of everyday communication. Wireless communication systems can be divided into three popular types: broadcasting, satellite and cellular services [1-2]. The wireless communication introduces several advantages over wired communications, in terms of mobility within a coverage area and in terms of scalability; there is no need for (re)wiring to (re)connect and no service interruption to the rest of the system. The cost of running and maintaining a wireless communication service is much less than the wired one. Difficult terrain or long earthly distance no longer poses an issue as wireless communications can be taken to remote areas, which in turn may support the provision of applications and services such as e-educational, meteorological and e-commerce.
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