Automatic performance setting for dynamic voltage scaling
Proceedings of the 7th annual international conference on Mobile computing and networking
Mobile Channel Characteristics
Mobile Channel Characteristics
Wake on wireless: an event driven energy saving strategy for battery operated devices
Proceedings of the 8th annual international conference on Mobile computing and networking
Dynamic Voltage Scaling with Links for Power Optimization of Interconnection Networks
HPCA '03 Proceedings of the 9th International Symposium on High-Performance Computer Architecture
Power reduction by varying sampling rate
ISLPED '05 Proceedings of the 2005 international symposium on Low power electronics and design
Wireless wakeups revisited: energy management for voip over wi-fi smartphones
Proceedings of the 5th international conference on Mobile systems, applications and services
PPR: partial packet recovery for wireless networks
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
Micro power management of active 802.11 interfaces
Proceedings of the 6th international conference on Mobile systems, applications, and services
A case for adapting channel width in wireless networks
Proceedings of the ACM SIGCOMM 2008 conference on Data communication
NAPman: network-assisted power management for wifi devices
Proceedings of the 8th international conference on Mobile systems, applications, and services
CSMA/CN: carrier sense multiple access with collision notification
Proceedings of the sixteenth annual international conference on Mobile computing and networking
Putting the software radio on a low-calorie diet
Hotnets-IX Proceedings of the 9th ACM SIGCOMM Workshop on Hot Topics in Networks
Avoiding the rush hours: WiFi energy management via traffic isolation
MobiSys '11 Proceedings of the 9th international conference on Mobile systems, applications, and services
PowerVisor: a battery virtualization scheme for smartphones
Proceedings of the third ACM workshop on Mobile cloud computing and services
Greening wireless communications: Status and future directions
Computer Communications
802.11ec: collision avoidance without control messages
Proceedings of the 18th annual international conference on Mobile computing and networking
Frame retransmissions considered harmful: improving spectrum efficiency using Micro-ACKs
Proceedings of the 18th annual international conference on Mobile computing and networking
SAPSM: Smart adaptive 802.11 PSM for smartphones
Proceedings of the 2012 ACM Conference on Ubiquitous Computing
SloMo: downclockingWiFi communication
nsdi'13 Proceedings of the 10th USENIX conference on Networked Systems Design and Implementation
Model-driven energy-aware rate adaptation
Proceedings of the fourteenth ACM international symposium on Mobile ad hoc networking and computing
Proceedings of the 8th ACM international workshop on Wireless network testbeds, experimental evaluation & characterization
Proceedings of the 8th ACM international workshop on Wireless network testbeds, experimental evaluation & characterization
DOMINO: relative scheduling in enterprise wireless LANs
Proceedings of the ninth ACM conference on Emerging networking experiments and technologies
ACM SIGMOBILE Mobile Computing and Communications Review
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WiFi interface is known to be a primary energy consumer in mobile devices, and idle listening (IL) is the dominant source of energy consumption in WiFi. Most existing protocols, such as the 802.11 power-saving mode (PSM), attempt to reduce the time spent in IL by sleep scheduling. However, through an extensive analysis of real-world traffic, we found more than 60% of energy is consumed in IL, even with PSM enabled. To remedy this problem, we propose E-MiLi (Energy-Minimizing idle Listening) that reduces the power consumption in IL, given that the time spent in IL has already been optimized by sleep scheduling. Observing that radio power consumption decreases proportionally to its clock-rate, E-MiLi adaptively downclocks the radio during IL, and reverts to full clock-rate when an incoming packet is detected or a packet has to be transmitted. E-MiLi incorporates sampling rate invariant detection, ensuring accurate packet detection and address filtering even when the receiver's sampling clock-rate is much lower than the signal bandwidth. Further, it employs an opportunistic downclocking mechanism to optimize the efficiency of switching clock-rate, based on a simple interface to existing MAC-layer scheduling protocols. We have implemented E-MiLi on the USRP software radio platform. Our experimental evaluation shows that E-MiLi can detect packets with close to 100% accuracy even with downclocking by a factor of 16. When integrated with 802.11, E-MiLi can reduce energy consumption by around 44% for 92% of users in real-world wireless networks.