Edição Especial IWT - International Workshop on Telecommunications Tutoriais 1 . Sistemas de Comunicações Móveis de Próxima Geração Multiantenas e Multiportadoras 2 . Optical Polymer and Polymer-Clad Silica Fiber Data Buses For Vehicles and Airplanes 3 . QoS in next generation networks 4 . Telecommunications Evolutions: the fabric of Ecosystems Artigos Científicos 1 . Channel Estimation of Powerline Communication System 2 . Effect of Buffer Size on Anycast Routing in Delay Tolerant Networks 3 . The Forward Link Performance Study of the WiMAX System Under Different Schedulers 4 . On The Performance of WH-STC-OFDM and WH-SFC-OFDM in Non-Linear Time Variant Channels 5 . Modeling and Analysis of TCP in Wireless Networking using Max-Plus Model