[...]... QoS and real-time issues, security and dependability issues, integrated wired /wireless/ sensor networks and systems, applications, modeling and performance evaluation, xi xii Preface implementation experience, and measurements We believe that there is no other existing book that brings the concept ad hoc networking together with its key technologies and applications over the platforms—personalarea, sensory-area, ... of (a) the maximal breach path in the Voronoi diagram and (b) the maximal support path in the Delaunay triangulation I and F denote the initial and final locations of the path Coverage and Connectivity of Wireless Sensor Networks 13 on the line segments of the Voronoi diagram To find the maximal breach path, each line segment is given a weight equal to its minimum distance to the closest sensor The proposed... Chair in the Wireless Networks and Mobile Computing Workshop, 2000 and 2001, as a Vice-Program Chair in the International Conference on Distributed Computing Systems (ICDCS), 2004, as well as of the IEEE International Conference on Mobile Ad- hoc and Sensor Systems (MASS), 2004, as an associate editor for The Computer Journal, as a guest editor for the special issue of ACM Wireless Networks on “Advances... in Mobile and Wireless Systems,” as a guest editor for the special issue of IEEE Transactions on Computers on Wireless Internet,” as a guest editor for the special issue of Journal of Internet Technology on Wireless Internet: Applications and Systems,” as a guest editor for the special issue of Wireless Communications and Mobile Computing on “Research in Ad Hoc Networking, Smart Sensing, and Pervasive... Coverage and Connectivity of Wireless Sensor Networks 11 where K is the energy emitted by the target, Ni the noise, and k the signal decaying coefficient, which typically ranges from 2 to 5 u − li denotes the geometric distance between the target and sensor si The noise effect is usually modeled by a zero-mean Gaussian distribution random variable.4 Based on this formulation, we can define the sensing... Applications of Wireless Sensor and Ad Hoc Networks. ” Several of his papers have been chosen as best papers in international conferences His current research interests include mobile computing, wireless networks, distributed robotics, and network security Dr Wu is a member of the IEEE and the Phi Tau Phi Society xiii xiv The Authors Yu-Chee Tseng received his BS and MS degrees in Computer Science from the National... within the disk is well monitored by the sensor located at the center of the disk; otherwise, it is not monitored by the sensor The second one is the probabilistic model An event happening in the coverage of a sensor is either detected or not detected by the sensor depending on a probability distribution Hence, even if an event is very close to a sensor, it may still be missed by the sensor The last... considers the coverage problem by including the issue of how targets travel along the sensing field The worst and best traveling paths of this model can be used to evaluate the sensing capability of the sensor network 1.2.1 Coverage Solutions Based on the Binary Model Under the binary model, the sensing range of a sensor is modeled by a disk The radii of disks representing sensors’ sensing ranges may be the. .. of the coverage problem: (a) the sensing field is 1-covered by unit disks and (b) the sensing field is 2-covered by nonunit disks The number in each subregion is its coverage level 1 2 1 2 6 Wireless Ad Hoc Networking Coverage and Connectivity of Wireless Sensor Networks 7 s2 s6 g h f i b c s3 s1 a s6 s5 d e s4 Figure 1.2 A sensor network example where sensor s1 locally decides itself to be redundant and. .. in wireless ad hoc networks including networking architectures and protocols, cross-layer architectures, localization and location tracking, power management and energy-efficient design, power and topology control, time synchronization, coverage issues, middleware and software design, data gathering and processing, embedded network-oriented operating systems, mobility management, self-organization and . Jijun Luo and Honglin Hu ISBN: 0-8493-7399-9 Wireless Ad Hoc Networking: Personal-Area, Local-Area, and the Sensory-Area Networks Shih-Lin Wu and Yu-Chee Tseng ISBN: 0-8493-9254-3 Wireless Metropolitan. Cataloging‑in‑Publication Data Wireless ad hoc networking : personal‑area, local‑area, and the sensory‑area networks / editors, Shih‑Lin Wu and Yu‑Chee Tseng. p. cm. ‑‑ (Wireless networks and mobile communications) Includes. that brings the concept ad hoc networking together with its key technologies and applications over the platforms—personal- area, sensory-area, and local-area networks in a single work. The book contains