H. Rohi

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By increasing the request for mobile services, the CDMA cellular system has been used extensively. This is due to advantages of spread spectrum techniques used in CDMA systems, and their higher capacity in compare to the FDMA & the TDMA systems. Power control is a very important issue in the CDMA systems. Different types of power control are used in the(More)
In recent years the use of small multi mission satellites (SMMS) in Low Earth Orbit (LEO) for making voice, data and E-mail communications has been grown extensively. Low production cost, Low cost of lunching and low transmission power due to it's low orbit of these satellites are some reasons for their vast usage. How over because of their low orbit they(More)
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