Intelligent Energy Efficient Network Management Across the Access Networks to CPE Pathway

1. Varsha Jain, Prof. Gerard Parr, Dr. Philip Morrow Intelligent Energy Efficient Network Management Across the Access Networks to CPE Pathway EPSRC-DST India-UK Centre of Excellence in Next Generation Networks Systems and Services

2. End-to-End Energy Efficient Architecture • Power management mechanisms can affect the networks application behaviour such as performance (QoS and QoE) and availability. • Network is highly dynamic in terms of varying access technologies (Wireless, Wired and optical) and their respective different power management capabilities.

3. Energy Performance Coordination • An application can operate at n different performance (QoS) levels, denoted A0, A1... An, A0 Qmax A1 A2 • For each A-state have optimal network system configuration, including choice of hardware and power management settings. x y A3 • The key idea is to automatically select power management settings that keep the networks from access to HG and further customer-end- system all along operate close to the optimal curve. Emax Emin 0

4. Energy Performance Coordination

5. Energy Performance Coordination Energy Consumption as a function of application performance

6. Experiment Description • We examine the test cases into two different access networks; (1) ADSL (2) WiMAX. WiMAX – video conferencing packet delay variation vs. energy consumption ADSL voice packet delay variation vs. energy consumption

7. Experiment Description WiMAX voice delay variations vs. energy consumption ADSL-video conferencing packet delay variation vs. energy consumption

8. Conclusion • We analysed the inter-relationship between energy consumption and application performance. • ADSL technology highly degrades the application performance in case of low power state while WiMAX is better suited for real time applications at the same time, is more energy efficient in specific conditions.