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The distributed multimedia systems services require optimum resource allocation and application configuration. In multimedia applications intermediate processing should be done among distributed media sources and sinks. Such applications include format conversions and mixing several media streams. To support these applications computers at the intermediate stage are being used to relieving end-users terminals from massive processing loads. It is important to consider that intermediate processing components, IPCs, are not subject to location restrictions. In this thesis the problem of...

Spectrum scarcity is one of the biggest challenges that modern world is facing. Efficient use of available licensed spectrum is becoming more and more critical with increasing demand and usage of radio spectrum. Researches show that the usage is not uniform throughout licensed spectrum rather it is heavy in certain parts and has portions that are utilized inefficiently. Some researchers even claim that more than 70% of licensed frequency band is not in use, most of the time. Different researches are in progress and ways are being found to efficiently utilize the available licensed...