Efficient Media Streaming with Collaborative Terminals for the Smart City Environment
IEEE Communications Magazine
The efficient provision of multiple services via emerging mobile networking architectures will play a crucial role, towards the realization of the smart city concept. Several of the most demanding (from the required bandwidth point of view) scenarios in smart cities are related with media streaming, which is a key component in smart applications, like Smart Entertainment, Smart Tourism and Smart Surveillance, etc. Such applications are associated with the request of exploiting considerable
... t of data, which is difficult to achieve especially in dense urban environments. In this context, this article presents a new solution for HTTP-compliant adaptive media streaming, dedicated to future 5G mobile networking systems. It aims at increasing bandwidth availability for media streaming, through the use of multiple radio access technologies and direct connections established between devices, if they are in proximity of each-other. The proposed solution considers the scenario, in which a high quality media stream is received by multi-path transmission in the Radio Access Network. The transmission exploits collaboration of neighboring devices, which can use direct device-to-device links. Thus, proxy nodes can be inserted between a given media receiver and access network. Towards ensuring optimized resource allocation at both levels: base-station-to-device and device-to-device, this paper introduces the modules required for collaboration streaming inside Radio Access Networks. The efficiency of the presented system is enhanced through the use of adaptive streaming technology with multiple description coding, well suited to multi-path delivery.