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Mode switch - Adaptive use of delay-sensitive or energy-aware communication in IEEE 802.15.4-based networks

9 years 4 months ago
Mode switch - Adaptive use of delay-sensitive or energy-aware communication in IEEE 802.15.4-based networks
Abstract--We propose "mode switch", an adaptive loadsensitive solution that supports both an energy-efficient operation mode for transmitting normal sensor data and an QoSaware low-latency mode for high priority emergency messages. Typically, sensor networks are considered to operate efficiently w.r.t. energy consumption. A good example is the IEEE 802.15.4 protocol, which has mainly been designed for this purpose. The standard IEEE 802.15.4 beacon-enabled cluster-tree topology supports energy-efficient operation for low-rate data transmissions. However, in the case of detected alarms, high-priority emergency messages need to be transmitted with low-latency and guaranteed delivery. In this case, the cluster-tree topology appears to be inefficient and cannot provide the needed support. In this paper, we show how energy-efficiency and delay-sensitivity can be combined by developing an adaptive solution that completely switches between the fundamentally different operation modes...
Feng Chen, Xiaoyu Tong, Edith Ngar, Falko Dressler
Added 20 May 2011
Updated 20 May 2011
Type Journal
Year 2010
Where MASS
Authors Feng Chen, Xiaoyu Tong, Edith Ngar, Falko Dressler
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