Low power, low delay: Opportunistic routing meets duty cycling
Paper i proceeding, 2012
Traditionally, routing in wireless sensor networks consists of two steps: First, the routing protocol selects a next hop, and, second, the MAC protocol waits for the intended destination to wake up and receive the data. This design makes it difficult to adapt to link dynamics and introduces delays while waiting for the next hop to wake up. In this paper we introduce ORW, a practical opportunistic routing scheme for wireless sensor networks. In a dutycycled setting, packets are addressed to sets of potential receivers and forwarded by the neighbor that wakes up first and successfully receives the packet. This reduces delay and energy consumption by utilizing all neighbors as potential forwarders. Furthermore, this increases resilience to wireless link dynamics by exploiting spatial diversity. Our results show that ORW reduces radio duty-cycles on average by 50% (up to 90% on individual nodes) and delays by 30% to 90% when compared to the state of the art.
Energy utilization
Routing protocols
Energy efficiency
Duty-cycling
MAC protocol
Data processing
Next-hop
Wireless sensor networks
Low delay
State of the art
Duty cycle
Wireless sensor network
Low Power
Duty cycles
Wireless link
Link dynamics
Medium access control
Opportunistic routing
Wakes
Dynamics
Spatial diversity
Författare
Olaf Landsiedel
Chalmers, Data- och informationsteknik, Nätverk och system
Euhanna Ghadimi
Kungliga Tekniska Högskolan (KTH)
Simon Duquennoy
Swedish Institute of Computer Science
Mikael Johansson
Kungliga Tekniska Högskolan (KTH)
IPSN'12 - ACM/IEEE Proceedings of the 11th International Conference on Information Processing in Sensor Networks, (Beijing;16 - 20 April 2012)
185-196
Ämneskategorier
Data- och informationsvetenskap
DOI
10.1145/2185677.2185731
ISBN
9781450312271