Handbook of Optimization in Complex Networks : Communication and Social Networks Complex Social Networks is a newly emerging (hot) topic with applications in a variety of domains such as communication networks engineering networks social networks and biological networks. In the last decade there has been an explosive growth of research on complex real world networks a theme that is becoming pervasive in many disciplines ranging from mathematics and computer science to the social and biological sciences. Optimization of complex communication networks requires a deep understanding of the interplay between the dynamics of the physical network and the information dynami