The Implementation of Dynamic Rate Allocation in Sensor Networks

Dynamic Architectural Reconfiguration Algorithms and Transmission Protocols for Clustered Sensor Network Topologies with Prioritized Data

“…We consider a clustered network architecture, as in [9,12], shown in Figure 1. The components in the architecture are microsensors, microsensor clusters, and a backbone network of cluster heads and a fusion center.…”

“…The components in the architecture are microsensors, microsensor clusters, and a backbone network of cluster heads and a fusion center. In [9,12], the microsensors, the cluster heads, and the fusion center have been, respectively, termed microsensor nodes (MSNs), aggregation and forwarding nodes (AFNs), and base station (BS). We will use the same terminology for consistency.…”

“…We initially consider the static problem stated in [9,12]. The network signal processing objective is specified, the network architecture is fixed, the data environments and the RA transmission protocols are known and unchanged, the operations performed by the AFNs are determined and the data rates {λ Ci } generated in the clusters are fixed.…”

“…Thus, required overall data rates, in conjunction with ratedependent transmission protocol performance and node life spans, necessitate network-architecture and network-operations adaptations, so that the nodes' survivability limitations do not interfere with the required network overall performance [10,11]. Since the network-architecture and networkoperations adaptations are functions of the acting data rates, it is eminent that data rates be monitored and that rate changes be detected accurately and rapidly [12].…”

“…An interesting rate allocation algorithm has been presented in [9], which is based on a modification of the max-min routing in [17] and the lexicographic linear programming approach in [18]. In [12], a dynamic rate allocation methodology has been presented that is facilitated by a powerful data rate monitoring algorithm. In [19], energy-efficient clustering algorithms are proposed, including a discussion on LEACH approaches, where energy consumption is assumed to be strictly a function of geographical distances and where transmission collisions 2 ISRN Sensor Networks are completely ignored.…”