Wireless Signal Processing & Networking Workshop:
Advanced Wireless Technologies

Date: 21 December (Friday),2012

Venue: Main Conference Room, CENTER HALL Building, Engineerings, Tohoku University

Time: 16:00~

Title: Energy-Saving Coordinated Napping (CoNap) for Wireless Networks

Speaker: Prof. Koichi Adachi

Affiliation: Agency for Science, Technology and Researc (A*)

Abstract:
   We propose a time-slot-based transmission strategy, referred to as “coordinated napping (CoNap)”' for energy saving in cellular networks. In CoNap, multiple base stations (BSs) form a cluster and switch between transmit mode (TM) and nap mode (NM) in an implicitly coordinated manner. The implicit coordination is implemented by the binary matrices to assign TM and NM to each BS in the cluster. CoNap can effectively reduce the network energy consumption and reduce the inter-cell interference, especially during the non-peak traffic load hours. Our numerical results based on a realistic energy consumption model in a cellular network show that as high as 50% saving can be achieved without compromising the quality of service to users.

Biography:
   Koichi Adachi received the B.E., M.E., and Ph.D degrees in engineering from Keio University, Japan, in 2005, 2007, and 2009 respectively. From 2007 to 2010, he was a Japan Society for the Promotion of Science (JSPS) research fellow. Currently he is with the Institute for Infocomm Research, A*STAR, in Singapore. His research interests include cooperative communications. He was the visiting researcher at City University of Hong Kong in April 2009 and the visiting research fellow at University of Kent from June to Aug 2009.