/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: EwaldoZihan https://cdn.slidesharecdn.com/profile-photo-EwaldoZihan-48x48.jpg?cb=1534403888 Researching device-to-device(D2D) communication as an underlay of LTE-Advance System focusing on random access and collision avoidance mechanism.