Báo cáo hóa học: " Research Article Wireless Sensor Networks: Performance Analysis in Indoor Scenarios" ppt

... networks. Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2007, Article ID 81864, 14 pages doi:10.1155/2007/81864 Research Article Wireless Sensor Networks: ... Performance Analysis in Indoor Scenarios G. Ferrari, P. Medagliani, S. Di Piazza, and M. Martal ` o Wireless Ad-Hoc and Sensor Networks (WASN) Laboratory, Depar...

Ngày tải lên: 22/06/2014, 22:20

... on Wireless Communications and Networking Internet Processing proxy server (PPS) Monitoring station (MS) Wireless link Wired link Figure 2: WVSN topology. 3. DESCRIPTION OF THE WVSN SYSTEM In ... within the following set [1, 31]: 1 being the value giving the best encoding quality but requir- ing the maximum number of bits to encode the frame, and 31 the value giving the worst encoding ....

Ngày tải lên: 22/06/2014, 19:20

... latency in ATR is not tolerable. In this paper, we are interested in study- ing automatic target recognition with range and speed uncer- tainty, that is, delay-Doppler uncertainty, using radar sensor networks ... radar sensor networks with the lowest level in the hierarchy being a clus- ter. As argued in [11–14], in addition to helping with scala- bility and robustness, aggreg...

Ngày tải lên: 22/06/2014, 22:20

... reproduction in any medium, provided the original work is properly cited. 1. Introduction Due to the rapid advances in circuit integration technology, and to optimize performance while maintaining acceptable levels ... certain mix of floating point, integer and load/store instructions) that are input to both the processors (Opteron and Xeon) in order to test their memory hierarchy per...

Ngày tải lên: 21/06/2014, 18:20

... ERROR PERFORMANCE ANALYSIS 3.1. Time-hopping code analysis With all users assumed to be transmitting the same level of energy, and in uenced by the same channel model, the re- maining in uential ... to an increase in the level of complexity of the system. Increased memory, channel tracking, and additional processing are a few of the requirements, with the possibility of being incor-...

Ngày tải lên: 22/06/2014, 19:20

... we have managed to integrate a chain of content coding, transmission and rendering technolo- gies into a heterogeneous infrastructure and terminal set, demonstrating real-time interactive 4D content ... approxi- mating best the original curve, the area between the original curve and the one reconstructed by linear interpolation must be minimised. For instance, Figure 9(a), showing the move- m...

Ngày tải lên: 22/06/2014, 19:20

... 2007, Article ID 19728, 9 pages doi:10.1155/2007/19728 Research Article Characteristics of MIMO-OFDM Channels in Indoor Environments Hajime Suzuki, Thi Van Anh Tran, and Iain B. Collings Wireless ... correlated LoS MIMO channels in an indoor environment, as given in this paper, are scarce in the literature. 4.3. Rician factor The spatial fading of a narrowband channel in...

Ngày tải lên: 22/06/2014, 22:20

... estimation in wireless sensor networks,” in Proceedings of the 4th International Symposium on Information Processing in Sensor Networks (IPSN ’05), pp. 324–331, April 2005. [12] A. Srinivasan, ... “Robust statistical methods for securing wireless localization in sensor networks,” in Proceedings of the 4th International Symposium on Informa- tion Processing in Sensor Ne...

Ngày tải lên: 21/06/2014, 11:20

... deployed in a sensor field to perform sensing operations, a sensor node may fall into one of the following states [2]. (1) Sensing. A sensing node monitors the source using an integrated sensor, ... multi-constrained QoS in wireless sensor networks by mapping a path-based model into a probabilistic routing scheme. Using the work done in [21]asbenchmark,weproposedin[22] the Energ...

Ngày tải lên: 21/06/2014, 17:20

... dominator node u in N(v) to connect the original dominating set, a spanning tree rooted at u can be formed among the nodes in N(v). Nodes in this spanning tree become the new dominators. In both cases ... COV  CDS + I (g) F D C A E G B H I (h) Figure 9: Finding a BACDS in the network in Figure 6(a).(a)SET + and SET − in G,setlist(i)orlist gray (i)ofeachnodei are listed above. (...

Ngày tải lên: 22/06/2014, 19:20