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Low power, low delay: Opportunistic routing meets duty cycling

Olaf Landsiedel (Institutionen för data- och informationsteknik, Nätverk och system (Chalmers) ) ; E. Ghadimi ; S. Duquennoy ; M. Johansson
IPSN'12 - ACM/IEEE Proceedings of the 11th International Conference on Information Processing in Sensor Networks, (Beijing;16 - 20 April 2012) p. 185-196. (2012)
[Konferensbidrag, refereegranskat]

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.

Nyckelord: Duty cycle, Energy efficiency, Opportunistic routing, Wireless sensor network, Duty cycles, Duty-cycling, Link dynamics, Low delay, Low Power, MAC protocol, Next-hop, Spatial diversity, State of the art, Wireless link, Data processing, Dynamics, Energy utilization, Medium access control, Routing protocols, Wakes, Wireless sensor networks



Denna post skapades 2012-05-30. Senast ändrad 2014-09-02.
CPL Pubid: 158250

 

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Institutioner (Chalmers)

Institutionen för data- och informationsteknik, Nätverk och system (Chalmers)

Ämnesområden

Information Technology

Chalmers infrastruktur