The Tactile Internet will enable users to physically explore remote environments and to make their skills available across distances. An important technological aspect in this context is the acquisition, compression, transmission, and display of haptic information. In this paper, we present the fundamentals and state of the art in haptic codec design for the Tactile Internet. The discussion covers both kinesthetic data reduction and tactile signal compression approaches. We put a special focus on how limitations of the human haptic perception system can be exploited for efficient perceptual coding of kinesthetic and tactile information. Further aspects addressed in this paper are the multiplexing of audio and video with haptic information and the quality evaluation of haptic communication solutions. Finally, we describe the current status of the ongoing IEEE standardization activity P1918.1.1 which has the ambition to standardize the first set of codecs for kinesthetic and tactile information exchange across communication networks.

3D streaming over thin mobile devices is considered challenging due to the mobile devices' limited capabilities such as limited energy lifetime, processing power, storage capacity, and graphics' hardware and accelerator capabilities, that make it very difficult for mobile devices to render and process large and complex 3D scenes. To address this issue, 3D streaming techniques have been proposed that aim at reducing the resolution of 3D objects to make it easy to deliver and render. However, streaming all of the 3D objects in a given virtual environment (VE) is not considered efficient. In this paper, we propose a novel object selection technique for 3D streaming based systems over thin mobile devices, which we refer to as OCTET. Our protocol, which is based on multi-level area of interest (AOI), allows for the selection of the 3D objects required for the user's virtual scene, taking into account the user's interests, the location of the 3D objects in the multi-level AOI, and the mobile device's available resources.