in this paper, we propose a unified and interactive mobile learning (M-Learning) model to help with expanding and spreading education in the Arab Homeland countries. The model utilizes a new competitive spot beam satellite communication technology, which enables efficient channel allocation, where communication channels can be allocated to specific and precise areas. The proposed model is refer...

The demand for wireless communication is increasing day by day. People want a high speed of communication in less time. No one is interested in use of bunch of wires. So we move to wireless communication. As technology increases a demand also increases. Now everyone wants a fast communication from anywhere to anyone. Even rural area also requires internet facility. It is too hard to establish a...

In this paper, we propose a unified and interactive mobile learning (M-Learning) model to help with expanding and spreading education in the Arab Homeland countries. The model utilizes a new competitive spot beam satellite communication technology, which enables efficient channel allocation, where communication channels can be allocated to specific and precise areas. The proposed model is refer...

abstract background: in the age of communication and media that families are rapidly driven towards using satellite channels and other media, considering family health in this regard is essential. a determinant of health is marital satisfaction. the aim of this study was to investigate the relationship between watching satellite channels and intimacy and marital satisfaction in isfahan, iran. m...

A control system in satellite communication terminal of low information rate is designed via program based on ATmega128 system controller, which has realized the function of operation control in the satellite communication terminal of low information rate. The synchronization signal of clock is simulated via Mcu I/O interface to voice-coder. Mcu controls the input and output of analog signal an...

Automatic-repeat-request (ARQ) error control is often employed to assure high delity information transmission. However, ARQ error control can provide poor throughput for satellite multicasting. The throughput in such communication may be improved by the combination of a terrestrial network parallel to the satellite network and a judiciously modi ed ARQ protocol. In particular, retransmitted ARQ...

Recent evolutions in the context of aeronautical communications have changed the landscape and the role of the different systems that allow aircrafts to maintain a link with the ground while in flight. The increase in capacity needed to support the growth of worldwide air traffic and the need for increased communication safety are driving a transition from voice-centric procedures aided by slow...

The family in Iran is a powerful and influential institution that is undergoing change over time. Various factors have contributed to these changes. In the 21st century, media such as satellite and cinema have linked communities closer together. In such a situation, the views, attitudes and beliefs of other societies reach out to other societies in the form of images, sounds and symbols through...

Due to lack of resources such as transmission power and bandwidth in satellite systems, resource allocation problem is a very important challenge. Nowadays, new heterogeneous network includes one or more satellites besides terrestrial infrastructure, so that it is considered that each satellite has multi-beam to increase capacity. This type of structure is suitable for a new generation of commu...