x Contents
7.3.2 Imperative Language: nesC 252
7.3.3 Dataflow-Style Language: TinyGALS 260
7.4 Node-Level Simulators 266
7.4.1 The ns-2 Simulator and its Sensor Network
Extensions 269
7.4.2 The Simulator TOSSIM 271
7.5 Programming Beyond Individual Nodes: State-Centric
Programming 272
7.5.1 Collaboration Groups 274
7.5.2 PIECES: A State-Centric Design Framework 278
7.5.3 Multitarget Tracking Problem Revisited 282
7.6 Summary 287
8
Applications and Future Directions 291
8.1 A Summary of the Book 291
8.2 Emerging Applications 294
8.3 Future Research Directions 301
8.3.1 Secure Embedded Systems 301
8.3.2 Programming Models and Embedded Operating
Systems 301
8.3.3 Management of Collaborative Groups 302
8.3.4 Lightweight Signal Processing 303
8.3.5 Networks of High-Data-Rate ...