This paper investigates an anycast communication paradigm for a hvbrid sensorlactuator network, consisting of both resource-rich and resource-impoverished devices. The key idea is to exploit the capabilities of resource-rich devices (called microservers) to reduce the communication burden on smaller, energy, bandwidth and memory constrained sensor nodes. The goal is to deliver sensor data to the nearest micro-server, which can (i) store it (ii) fonvard it to other micro-servers using out-of-band communication or (iii) perform the desired actuation. Our approach is to con-S t N C t an anycast tree rooted at each potential event source, which micro-servers can dynamically join and leave. Our anycast mechanism is self-organizing, distributed, robust, scalable, and incurs very little overhead. ns-2 simulations show that our anycast mechanism can reduce network energy consumption by more than 50%. both the mean end-to-end latency of the transmission and the mean number oftransmissions by more than 50%, and achieves 99% data delivery rate for low and moderate micro-server mobility rate.
For example, in REF a shortest path anycast tree rooted at each source is constructed for each event source.
A communication paradigm for hybrid sensor/actuator networks
2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754)
2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754)
Computer Science