Wireless Ad Hoc and Sensor Networks

8.3 Optimized Energy-Delay Routing (OEDR) Protocol ......................3628.3.1 Neighbor Sensing and Energy-DelayMetrics Calculation...................................................................3638.3.2 Multipoint Relay (MPR) Selection.........................................3648.3.3 MPR and Energy-Delay Information Declaration...............3678.3.4 Routing Table Calculation.......................................................3678.3.5 The OEDR Protocol Summary ...............................................3718.4 Optimality Analysis for OEDR...........................................................3728.5 Performance Evaluation.......................................................................3758.6 Routing in Wireless Sensor Networks...............................................3828.7 Self-Organization Using Subnetwork Protocol ................................3858.8 Optimized Energy-Delay Subnetwork Routing Protocol...............3878.8.1 Optimal Relay Node Selection ...............................................3888.8.2 Relay-Node Selection Algorithm ...........................................3908.8.3 Optimality Analysis for OEDSR ............................................3948.9 Performance Evaluation.......................................................................3968.10 OEDSR Implementation.......................................................................4148.10.1 Hardware Implementation Description................................4158.10.1.1 Architecture of the Hardware Systemand Software .............................................................4168.10.1.2 Sensor Node: Instrumentation Sensor Node .......4168.10.1.3 Cluster Head and Relay Nodes .............................4168.10.1.4 Comparison of ISN and G4-SSN Capabilities.....4178.10.2 Software Architecture...............................................................4178.10.2.1 Routing Implementation .........................................4188.10.2.2 Routing Packets ........................................................4198.10.2.3 Traffic Cases...............................................................4198.10.2.4 Memory Limitations ................................................4198.11 Performance Evaluation.......................................................................4208.11.1 Description of the Experimental Scenario............................4218.11.2 Experiment Results...................................................................4218.11.3 Future Work...............................................................................4238.12 Conclusions ............................................................................................423References........................................................................................................425Problems ..........................................................................................................4289 Predictive Congestion Control for WirelessSensor Networks .....................................................................4299.1 Introduction............................................................................................4309.2 Overview of Predictive Congestion Control ....................................4329.2.1 Congestion Prediction and Mitigation..................................433