Following the previous successful events, MSN 2009 will be held in WuYi Mountain, China. Honored as "World Cultural and Natural Heritage", WuYi Mountain is one of the most beautiful places in Southeast of China with beautiful Scenes and a galaxy of culture. This conference provides a forum for researchers and practitioners to exchange research results and share development experiences. All papers accepted for MSN 2009 conference will appear in the Proceedings of MSN 2009, which is to be published by the IEEE Press.