高能效多媒体传输技术研究

With the rise of mobile internet service, users' requirements for multimedia service, as well as the energy consumed by wireless networks are rapidly increasing. To guarantee the quality of multimedia service for users, how to improve network performance with multimedia transmission technologies is a significant issue. In this paper, we first do surveys on characteristics of architecture of wireless networks and multimedia transmission technologies. Then an energy-efficient multimedia transmission scheme, considering users' behavior and exploiting base station cooperation, is proposed to realize the proper coverage for hotspot area. Both theoretical and simulation results illustrate that proper base station (BS) cooperation with optimal coverage will bring a resource allocation to maximize EE. The results also show that the degree of user convergence is one of the main factors that affect base station cooperation and multimedia transmission.