This paper evaluates the performance of Satellite communication system. Different data modulation techniques are tested and analyzed to select the optimum modulation scheme. Different channels as AWGN, Rayleigh and Rician channel models are implemented and evaluated with various channel estimation techniques as, Least Square (LS), Least Square-Modified (LS-Mod) and Minimum Mean Square Error (MM...

This paper considers proposing the mathematical model and simulation mode of inter-satellite channel based on the reliability of inter-satellite communication system. The Monte Carlo method is adopted to develop the spread spectrum communication system of two consumers. In order to reduce the bit errors of inter-satellite communication, both spread spectrum communication technology and channel ...

An interference channel is a network consisting N senders and N receivers. There exists a oneto-one correspondence between senders and receivers. Each sender only wants to communicate with its corresponding receiver, and each receiver only cares about the information form its corresponding sender. However, each channel interferes the others. So an interference channel has N principal links and ...

this study investigate information and communication technology influence on opposite sex relationship. current survey is based on questionnaires data. selected census population is 395 of shiraz city youths (age 18-30) chose using lin table and cluster method with estimated error of 5%. the results of this investigation shows that relationship with opposite sex depends on several factors such ...

in this paper, an interference management for multi-beam satellite network to enhance spectral efficiency is studied. first, a two-satellite for future generation satellite network using cognitive radio technology is provided.this network is composed of a secondary satellite and aprimary satellite where the primary satellite system does not suffer from severe destructive interferences coming fr...

Under the rapid development of satellite communication systems and satellite navigation systems, there is an urgent need to combine the two together in order to achieve location-based services, etc. Despite the long relationship history of navigation and communication, the two satellite systems are basically independent of each other. As a result, terminal size tends to be relatively large, and...