1. Sofie Lambert Internet Based Communication Networks and Services research group (IBCN) E NERGY EFFICIENCY STRATEGIES IN TELECOMMUNICATION ACCESS NETWORKS ( BELGIUM )

2. C ONVERGENCE OF MOBILE AND FIXED ACCESS NETWORK ONU Optical Network Units Splitters (active or passive) ACCESS NETWORK Backbone CO Central Office Optical fiber TRANSPORT NETWORK ONU

3. C ONVERGENCE OF MOBILE AND FIXED ACCESS NETWORK ONU Optical Network Units Splitters (active or passive) Backbone CO Central Office Optical fiber TRANSPORT NETWORK ONU S LEEP MODES z z z z z z z z z ACCESS NETWORK z z z z z z

4. C ONVERGENCE OF MOBILE AND FIXED ACCESS NETWORK ONU Optical Network Units Splitters (active or passive) ACCESS NETWORK Backbone CO Central Office Optical fiber TRANSPORT NETWORK ONU

5. C ONVERGENCE OF MOBILE AND FIXED ACCESS NETWORK ONU Optical Network Units Splitters (active or passive) Backbone CO Central Office Optical fiber TRANSPORT NETWORK ONU C ONSOLIDATION OF FUNCTIONALITY ACCESS NETWORK

6. Redesign protocols... C ONVERGENCE OF MOBILE AND FIXED ACCESS NETWORK ONU Optical Network Units Splitters (active or passive) ACCESS NETWORK Backbone CO Central Office Optical fiber TRANSPORT NETWORK ONU L OAD REDUCTION

7. R ESEARCH SO FAR  Mainly studying power consumption of different optical access network architectures (WDM, TDM,...)  Different organisations provide different numbers...

8. P ARTICIPATION IN C OST 804  Where to find power consumption data for network components (independent sources?)  Get in touch with people who are working on related topics  Your opinion on the strategies  Contact: sofie.lambert@intec.ugent.be