Abstract

The explosive development of the ICT (Information and Communication Technology) Industry has emerged as one of the major sources of world energy consumption. In particular, China has already become the No.1 country with the largest market of telephone users as well as Internet users, while it is still in a fast growing phase. As a result, having the information and communication networks in China more GREEN is one of the most critical issues for a sustainable future of both China itself and the whole world. This talk will address the paradigm shift of the information networks, in particular the wireless communication networks, from the viewpoint of energy-efficiency, and a new concept of GREEN is proposed: Globally Resource-optimized and Energy-Efficient Networks. Specifically, both the power saving mechanisms of wireless LANs and base station (BS) cooperation schemes of cellular networks will be discussed. Theoretical modeling and simulation studies have shown that the data retrieval schemes and the base station coordination schemes can greatly improve the energy-efficiency of wireless networks, while the resource utilization can be kept at a satisfactory level. Article not available.

© 2009 OSA, IEEE Photonics Society, SPIE, COS, CIC