Báo cáo hóa học: " Adaptive Blind Multiuser Detection over Flat Fast Fading Channels Using Particle Filtering" doc
... Blind Multiuser Detection by Particle Filtering 131 schemes without using pilot signals, or blind MUD methods. Blind MUD methods are bandwidth more efficient ... importance sampling (particle filtering) algo- rithms have been applied to blind detection of convolutional codes [15], space-time trellis codes [16], and blind MUD [17] over fading channels. The mixture ... th...
Ngày tải lên: 23/06/2014, 00:20
... symbol recovery possible. Either ZF or MMSE equalization can b e employed. Similar to ZP-OFDM, equal- ization in AZP-OFDM requires the solution of an overdeter- mined system of equations. The fast ... with fixed guard length, exper ience serious error floors. Using AZP-OFDM, since the guard length is adaptive, the system is more robust to channels with large delay spread. The expected B...
Ngày tải lên: 23/06/2014, 01:20
... Processing Volume 2008, Article ID 426807, 9 pages doi:10.1155/2008/426807 Research Article Multiuser Detection Using Adaptive M ultistage Matrix Wiener Filtering Schemes with Stage-Selection Criteria ... detectors for coherent multiuser communications,” IEEE Journal on Selected Areas in Communications, vol. 8, no. 4, pp. 683–690, 1990. [13] Q. Li and L. A. Rusch, Multiuser detect...
Ngày tải lên: 22/06/2014, 01:20
báo cáo hóa học:" Adaptive blind timing recovery methods for MSE optimization" potx
... Larimore, Theory and Design of Adaptive Filters, (Prentice Hall, Englewood Cliffs, NJ, 2001) 14. W Chung, C You, Fast recovery blind equalization for time-varying channels using “Run-and-Go”. IEEE ... propose a blind adaptive baseband timing recovery algorithm producing a timing offset close to the jointly optimal timing phase compared to other existing non-data-aided timing rec...
Ngày tải lên: 21/06/2014, 17:20
Báo cáo hóa học: " Adaptive cognitive media delivery over composite wireless networks" pdf
... session, in which pre-fetching is performed, all channels are esti- mated by selecting media chunks using all channels on a l oad sharing basis (i.e. channels with a corresponding policy action of ... for channels are desirable. Exploiting channel knowledge for adaptive stre aming delivery s er- vices requires a means to measure adaptive streaming performance, which is discussed...
Ngày tải lên: 20/06/2014, 22:20
Báo cáo hóa học: " Research Article Decentralized Detection in IEEE 802.15.4 Wireless Sensor Networks" doc
... Decentralized Detection in Clustered Sensor Networks 2.1. Preliminaries on Decentralized Detection. In this section, we provide the reader with a few preliminaries on decen- tralized detection of ... of distributed detection networks,” IEEE Trans- actions on Aerospace and Electronic Systems,vol.23,no.6,pp. 789–797, 1987. [6] R. Viswanathan and P. K. Varshney, “Distributed detection w...
Ngày tải lên: 21/06/2014, 11:20
Báo cáo hóa học: " Retina identification based on the pattern of blood vessels using fuzzy logic" doc
... and Knowledge Discovery, (Springer, Berlin, Germany, 2000), pp. 181–210 16. S Chaudhuri, S Chatterjee, N Katz, M Nelson, M Goldbaum, Detection of blood vessels in retinal images using two-dimensional ... 2011:113 http://asp.eurasipjournals.com/content/2011/1/113 Page 8 of 8 over time is a great drawback of these features because people’s habits and behaviors are being changed over tim...
Ngày tải lên: 20/06/2014, 22:20
Báo cáo hóa học: " Improved Electromagnetic Interference Shielding Properties of MWCNT–PMMA Composites Using Layered Structures" docx
... it was found that as the MWCNT content increases, both SE R and SE A increases. Moreover, SE A increases much faster compared to SE R . Figure 1 shows the variation of EMI SE due to reflection and ... mm in length and 10 mm in width. Current was sup- plied using Kiethley 224 programmable current source and the voltage drop was measured using Keithley 197 A auto ranging micro volt DMM. The...
Ngày tải lên: 22/06/2014, 01:20
Báo cáo hóa học: " Space-Time Water-Filling for Composite MIMO Fading Channels" doc
... prob- ability in a composite MIMO channel model with both fast fading and shadowing have been analyzed. With the eigenvalue distribution of MIMO fading channels, both the capacity and the channel outage ... of block -fading channels with multiple antennas,” IEEE Trans- actions on Information Theory, vol. 47, no. 4, pp. 1273–1289, 2001. [5] A. J. Goldsmith and P. P. Varaiya, “Capacit...
Ngày tải lên: 22/06/2014, 22:20
Báo cáo hóa học: " On-Off Frequency-Shift Keying for Wideband Fading Channels" docx
... considered transmission of information over wide- band fading channels using M-ary orthogonal on/off FSK (OOFSK) signaling, in which M-ary FSK signaling is over- laidontopofon/off keying. We have ... Kennedy, Fading Dispersive Communication Channels, John Wiley & Sons, New Yor k, NY, USA, 1969. [9]I.E.TelatarandD.N.C.Tse,“Capacityandmutualinfor- mation of wideband multipath f...
Ngày tải lên: 23/06/2014, 00:20