Topology Control in Wireless Ad Hoc and Sensor Networks phần 3 pot

... if and only if there exists at least one path connecting any two nodes in the graph. Topology Control in Wireless Ad Hoc and Sensor Networks P. Santi  2005 John Wiley & Sons, Ltd 36 TOPOLOGY ... identified yet. In our view, topology control is an additional protocol layer positioned between the routing and MAC layer (see Figure 3. 5). 3. 4.1 Topology...

Ngày tải lên: 14/08/2014, 14:20

... instead of along at least one single Topology Control in Wireless Ad Hoc and Sensor Networks P. Santi  2005 John Wiley & Sons, Ltd THE RANGE ASSIGNMENT PROBLEM 83 number of noncanonical points ... active domination if and only if graph I(n,r,p) is connected. – Randomized broadcast: Assume a certain network node u wants to broadcast a mes- sage m. Performing broadcast...

Ngày tải lên: 14/08/2014, 14:20

... node u and its k-closest neighbor. Topology Control in Wireless Ad Hoc and Sensor Networks P. Santi  2005 John Wiley & Sons, Ltd DIRECTION-BASED TOPOLOGY CONTROL 119 maximum level if the condition ... determines the CNN. The minimum number of neighbors needed for connectivity has been investigated in a more practical setting also. In particular, Blough et al....

Ngày tải lên: 14/08/2014, 14:20

... xxvii I Introduction 1 1 Ad Hoc and Sensor Networks 3 1.1 TheFutureofWirelessCommunication 3 1.1.1 Adhocnetworks 3 1.1.2 Wirelesssensornetworks 5 1.2 Challenges 7 1.2.1 Adhocnetworks 8 1.2.2 Wirelesssensornetworks ... . . 33 3. 4.1 Topology control and routing . . . . . . . . . . . . . . . . . . . . 33 3. 4.2 Topology control and MAC . . . . . . . . . . . . . ....

Ngày tải lên: 14/08/2014, 14:20

... has Topology Control in Wireless Ad Hoc and Sensor Networks P. Santi  2005 John Wiley & Sons, Ltd AD HOC AND SENSOR NETWORKS 7 Table 1.1 Comparison of typical features of wireless ad hoc and ... diffraction and scattering. Reflection occurs Topology Control in Wireless Ad Hoc and Sensor Networks P. Santi  2005 John Wiley & Sons,...

Ngày tải lên: 14/08/2014, 14:20

... general can contain unidirectional links, is made symmetric by probing each node in N LMST (u), and by removing the link (or adding the reverse link) in case it is unidirectional. In our example, ... as by the battery level, and so on. In other words, contrary to what is assumed in most of the TC approaches proposed so Topology Control in Wireless Ad Hoc and Senso...

Ngày tải lên: 14/08/2014, 14:20

... likely that ad hoc and sensor networks are used in different environments: typically, ad hoc networks are deployed in urban scenarios, where the presence of buildings, obstacles, and so on renders ... far used in the analysis of ad hoc network properties are probably too simplistic and inaccurate. In the following, we discuss in detail the issues of radio cha...

Ngày tải lên: 14/08/2014, 14:20

... environment. Proc. IEEE Workshop on Dependability Issues in Ad Hoc Networks and Sensor Networks (DIWANS), Florence. Topology Control in Wireless Ad Hoc and Sensor Networks P. Santi  2005 John Wiley & Sons, ... perimeter stateless routing for wireless networks. Proc. ACM Mobicom, Boston, MA, pp. 2 43 254. Kawadia V and Kumar P 20 03 Power control a...

Ngày tải lên: 14/08/2014, 14:20

... http://www.simpopdf.com 2 Modeling Ad Hoc Networks In this chapter, we introduce a simple but widely accepted model of ad hoc network. Since sensor networks are a subclass of ad hoc networks, this model ... regulate radio signal propagation in the environment can be grouped into three categories: reflection, diffraction and scattering. Reflection occurs Topology Cont...

Ngày tải lên: 27/06/2014, 00:20

... is proposed and applied to existing localization algorithms. In the paper “A new time-based algorithm for positioning mobile terminals in wireless networks by I. Martin-Escalona and F. Barcelo-Arroyo, ... are running. This study addresses the accuracy of the TOAD algorithm in two different environments: line-of-sight (LOS) and non-line-of-sight (NLOS). This technique improves th...

Ngày tải lên: 22/06/2014, 01:20