Báo cáo hóa học: "Research Article GRAdient Cost Establishment (GRACE) for an Energy-Aware Routing in Wireless Sensor Networks" ppt

... respective link costs I L,B-Sink , I L,D-Sink ,andI L,J-Sink ,and then add their link costs to A Sink to form C B-Sink , C D-Sink , and C J-Sink ,respectively.NodesB, D,andJ store these information in ... defining link cost as a function of receiving and transmission power using that link. The transmission-value is set initially same for all the nodes. The link cost between nodes u and...

Ngày tải lên: 21/06/2014, 23:20

... Viana, and Y. Viniotis, Routing in Wireless Self-Organizing Networks,” Taylor and Francis Group, LLC, to appear. [4] M. Mauve, J. Widmer, and H. Hartenstein, “A survey on position-based routing ... from an airplane), and once they land they need to self-organize into a network and start performing the task at hand. One important step in self-organization is positioning, which refer...

Ngày tải lên: 22/06/2014, 00:20

... of sensor nodes capable of collecting and transmitting data to the FC over wireless links. In many cases, the underlying phenomenon being monitored can be modeled as a spatial random field. In ... “Distributed sampling for dense sensor networks: a bit-conservation prin- ciple,” in Proceedings of the 2nd International Workshop on Information Processing in Sensor Networks, vol....

Ngày tải lên: 21/06/2014, 17:20

... Tian and N. D. Georganas, “A coverage-preserving node scheduling scheme for large wireless sensor networks,” in Pro- ceedings of the 1st ACM International Workshop on Wireless Sensor Networks and ... MAC and routing features into ac- count. The power detection level of an incoming sign al is an im- portant PHY parameter which the MAC layer can possibly assess. A carrier sens...

Ngày tải lên: 22/06/2014, 19:20

... divided into 4 sub- bands, LL, LH, HL,andHH, as depicted in Figure 1(a).The LL subband contains the lowpass information and the oth- ers contain highpass information of horizontal, vertical and diagonal ... C SW ,andC RX are the current drawn (in mA) by the radio, respectively, in transmission, switching modes, and receiving, T TX , T SW ,andT RW are the correspond- ing operation time (i...

Ngày tải lên: 22/06/2014, 22:20

... tools for analyzing and synthesizing control systems. The standard LMI conditions benefited greatly from breakthrough advances in convex optimization theory and offered new solutions to many analysis ... ones, and, generally, much less conservative than the standard LMI conditions. The proposed solution is quite interesting, despite an inevitable increase in the number of decision varia...

Ngày tải lên: 21/06/2014, 07:20

... moment invariants feature descriptor which is of much lower dimension [11]. The “moment invariants” is a vector containing 7 entries and is invariant to tr anslation, scale, and rotation changes. The ... thus can be properly normal- ized. For moment invariants, Mahalanobis distance is u sed. 2.2. Neighbor Selection in Sensor Ne tworks. In sensor net- works,aneighborhoodisdefinedasagr...

Ngày tải lên: 21/06/2014, 08:20

... pages doi:10.1155/2010/621064 Research Article Drift-Compensated Adaptive Filter ing for Improving Speech Intelligibility in Cases with Asynchronous Inputs Heping Ding and David I. Havelock Institute for Microstructural ... Least-squares curve fitting. We then need to control offset inc(n )in( 4)forconsecu- tive sampling intervals in order for the main (middle) error e I (n  ) to r...

Ngày tải lên: 21/06/2014, 08:20

... are many works that address the cooperative spectrum sensing schemes and challenges. The performance of hard-decision combining scheme and soft-decision combining scheme is investigated in [7, ... decision in terms of achieving performance gain when the cooperative users (10–20) face independent fading. For simplicity, in this paper, we will use the hard decision combining algorithm...

Ngày tải lên: 21/06/2014, 19:20

... power in sector 1inBS1,andP noise,i is the noise power. For the given layout in Figure 3, intracell interference P intra,i, j , and intercell interference P inter,i,j are given by the following ... states in scheduling and resource allocation [6]. In recent years, some schemes have considered inte- grating packet scheduling and radio resource scheduling into queue and channel aware...

Ngày tải lên: 21/06/2014, 23:20