In the service environment

The security of the radio layer is only one of many aspects that takes the safety cellular networks. The increase in terminal performance Mobile and their means of communication promises a proliferation of uses it is imperative to secure. Thus, the opening of the USIM card, elements of recharge api provider confidence terminals, third-party applications requires vigilance particular. In another measure, its foreseeable replacement by software implementations based on processor partitioning functions such as ARM/ TrustZone also requires precautions.

More generally, control terminals by users is fundamental security; this control advocates a more open systems running within the terminals. The Ad networks consist of online reliance recharge a group of heterogeneous mobile devices communicating via the wireless medium. In a complex environment such that dense urban, transmission channel generates significant disturbance, particularly for real-time applications transmissions videos guaranteed quality of service.

Due to transmission channel

For researchers, the main objective is to recharge api provider ensure quality acceptable reception, taking into account all the constraints and hazards present in such applications. In our work we focus more particularly on the transmission Video H. AVC by mobile Ad network. Several effective solutions have recharge api provider been proposed for the video transmission in mobile ad networks but in particular conditions.

In by example, Mao proposed three schemes that are to transmit different streams of video on disjoint routes. This work has show that the diversity of routes in networks Mobile Ad Hoc represents an effective solution for combat packet losses. Technique protection UEP (Unequal Error Protection) based on number of simultaneous transmissions by the importance of each stream was adopted in to real-time transmission of video streams. Reception is used in to adjust in real recharge api provider time throughput and improve the quality of the received video.

Packet losses recharge api provider

The performance of these solutions are evaluated on simulation platforms networks, such as NS- (Network Simulator). However, the systems of transmission implemented at the online reliance recharge layer physics of these tools do not take into account the characteristics of the transmission channel associated with environment. These systems are based on a model error which calculates the packet loss rate (TPP) a radio link to assess its quality. However, the TPP is calculated from a simple of power received relative sensitivities of thresholds receptor.

Furthermore, the received power on each link is calculated using propagation models empirical models such as free space, two rays and exhibitor. These transmission systems suffer from two main drawbacks: First is related to the boundaries of propagation models used. The power calculated with recharge api provider empirical models depends only on the distance between the transmitter and the receptor or of a statistical characteristic of the density of the environment, while in fact the signal received is the sum of different replicas of the online reliance recharge signal issued.