The telecommunication industry has been successful in turning the Internet into a mobile service and stimulating the creation of a new set of networked, remote services. In this paper we argue that embracing cloud computing solutions is fundamental for the telecommunication industry to remain competitive. However, there are legal, regulatory, business, market-related and technical challenges that must be considered. In this paper we list such challenges and define a set of privacy, security and trust requirements that must be taken into account before cloud computing solutions can be fully integrated and deployed by telecommunication providers.

This paper describes the design of an on-going implementation of a fixed-point DSP processor with variable word length. Based on the top-down design approach described in [1], we discuss the approach based on a sequence of models and stepwise refinements. The pros and cons of selecting different models are investigated as they are compared with each other. For the purpose of validation, a flexible framework has been developed. It allows regression testing and dynamic changing of the test data set and model to be tested. Using the tools, the output is then automatically compared with the expected result as provided by the golden model. The project status today is a synthezisable VHDL model validated using backannotation and VITAL libraries