Seafloor spreading
Spreading Timeshifted TV Watching and Expanding Online-Video Viewing
... "NHK on demand" was watched by 3% of online video viewers, "Fuji Television On Demand" and "TBS on demand" by 2% respectively and "Dai2 Nippon Television", "Tereasa Douga (TV Asahi)" and "Anitere ... one-seg viewers "sports" and "news" are particularly popular while "movies" and "documentaries and education programs" are less popular (3) Viewing location and average viewing time One-seg viewers ... 84 4 14 18 15 22 88 10 10 10 91 Total (2,656persons) Viewing hours Usual Viewing channel Satisfaction with TV broadcasts Viewing genres TV viewing habits Short (under hours) Intermediate (2-4...
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Tài liệu Chapter 6 Bandwidth Utilization: Multiplexing and Spreading pptx
... The bit 6. 35 duration is 1/400,000 s, or 2.5 μs Figure 6. 17 Example 6. 9 6. 36 Figure 6. 18 Empty slots 6. 37 Figure 6. 19 Multilevel multiplexing 6. 38 Figure 6. 20 Multiple-slot multiplexing 6. 39 Figure ... 300 kbps 6. 44 Figure 6. 23 Digital hierarchy 6. 45 Table 6. 1 DS and T line rates 6. 46 Figure 6. 24 T-1 line for multiplexing telephone lines 6. 47 Figure 6. 25 T-1 frame structure 6. 48 Table 6. 2 E line ... Time-Division Multiplexing 6. 3 Figure 6. 1 Dividing a link into channels 6. 4 Figure 6. 2 Categories of multiplexing 6. 5 Figure 6. 3 Frequency-division multiplexing 6. 6 Note FDM is an analog multiplexing...
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CAR LINES: ULTRA LOW SULFUR DIESEL FUEL IS SPREADING docx
... cost 19 CARLINES August 2004 effectively through a combination of tailpipe control technologies and a new generation of clean diesel fuel The fuel used in this project is ultra- low sulfur diesel, ... sent a missive to the chief minister in protest CSE has demanded that diesel cars and diesel fuel in the city be made more expensive to discourage the use in the interest of public health 29 CARLINES ... 15 European Commission to Propose Revised Road, Fuel Taxes The European Commission will propose new legislation in the coming months that will call for the abolition of car registration taxes...
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Báo cáo khoa học: "Similarity between Words Computed by Spreading Activation on an English Dictionary" pptx
... activity at T = 10) Computing Similarity between Words Similarity between words is computed by spreading activation on Paradigme Each of its nodes can hold activity, and it moves through the links Each ... wI) between any two words w, w I in LDV and their derivations Computer programs of this p r o c e d u r e - spreading activation (in C), morphological analysis and others (in Common Lisp) - - can ... interaction between text and episodes in memory - - the interaction between what one is hearing or reading and what one knows [Schank, 1990] The meaning of words, sentences, or even texts can be...
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Báo cáo sinh học: " Performance evaluation of space-time-frequency spreading for MIMO OFDM-CDMA systems" ppt
... an open-loop MIMO OFDM-CDMA scheme using space-timefrequency spreading (STFS), in the presence of frequency-selective Rayleigh-fading channel The BER and BLER performance of the OFDM-CDMA system ... scheduling In addition, it offers better diversity/multiplexing trade-off The performance of MIMO OFDM–CDMA scheme using STFdomain spreading is investigated with zero-forcing (ZF) receiver It is ... section, joint space-time-frequency spreading is proposed for the downlink of an openloop multi-user system employing single-user MIMO (SU -MIMO) system based on OFDMCDMA system A MIMO OFDM channel...
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Báo cáo toán học: " Performance evaluation of space-time-frequency spreading for MIMO OFDM-CDMA systems" pptx
... N c , the OFDM-CDMA 60 Proposed OFDM-CDMA 2D OFDM-CDMA Number of Users 50 40 30 20 10 0 10 12 14 16 SNR dB Figure 10 System throughput comparison for OFDM-CDMA system with 4Tx, 4Rx of the proposed ... scheduling In addition, it offers better diversity/multiplexing trade-off The performance of MIMO OFDM-CDMA scheme using STF-domain spreading is investigated with zero-forcing (ZF) receiver It ... doi:10.1186/1687-6180-2011-139 Cite this article as: Dahman and Shayan: Performance evaluation of space-time-frequency spreading for MIMO OFDM-CDMA systems EURASIP Journal on Advances in Signal Processing...
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báo cáo hóa học: " High sensitivity wake-up radio using spreading codes: design, evaluation, and applications" ppt
... other wake-up radios Using an active component and a spreading code correlation algorithm, our high sensitivity wake-up radio provides good rejection of out-of-band and inband interference and ... http://jwcn.eurasipjournals.com/content/2011/1/26 High sensitivity wake-up radio Overview This article provides the high sensitivity wake-up radio It can have a longer wake-up range, up to times the data radio s radio range It ... this article as: Shih et al.: High sensitivity wake-up radio using spreading codes: design, evaluation, and applications EURASIP Journal on Wireless Communications and Networking 2011 2011:26 Submit...
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Báo cáo hóa học: " Research Article Orlicz Sequence Spaces with a Unique Spreading Model" pdf
... SPw hM and CM,1 coincide That is, SPw hM Journal of Inequalities and Applications Orlicz Sequence Spaces with Equivalent Spreading Models Definition 3.1 see Let xn be a normalized Schauder basis ... University, Tianjin, China, 2007 G Androulakis, E Odell, Th Schlumprecht, and N Tomczak-Jaegermann, “On the structure of the spreading models of a Banach space,” Canadian Journal of Mathematics, vol 57, ... Odell, and B Sari, “Lattice structures and spreading models,” Israel Journal of Mathematics, vol 161, pp 387–411, 2007 A Brunel and L Sucheston, “On B-convex Banach spaces, ” Mathematical Systems...
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Báo cáo hóa học: " Research Article Resource Allocation with Adaptive Spread Spectrum OFDM Using 2D Spreading for Power Line Communications" doc
... throughput For these high channel attenuations, the optimal frequency spreading factor is around 64 Figure 10 gives results with both time and frequency spreadings, that is, with 2D spreading ... case Figures and give results with time spreading and L f = 1, and with frequency spreading and Lt = 1, respectively In these figures only 1D spreading is then performed J.-Y Baudais and M Crussi` ... Symbols spread onto pavement p (2D spreading) Kp Spread symbols L f ,p Lp Lt,p Distribution of the code chips within the time-frequency grid Figure 1: Schematic representation of the 2D- spreading...
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Báo cáo hóa học: " Differential Detection of Space-Time Spreading with Two Transmit Antennas" ppt
... the multipath DIFFERENTIAL DETECTION OF STS WITH TWO TRANSMIT ANTENNAS AND MULTIPLE RECEIVE ANTENNAS Only one receive antenna is assumed in the discussion on differential detection of STS above ... exploited for conducting differential detection Define coefficients Bc = bt+1 bt1 − bt+1 bt2 , yt1 c1 bt ∗ : Complex conjugate DIFFERENTIAL DETECTION OF STS WITH TWO TRANSMIT ANTENNAS AND ONE RECEIVE ... calculation based on (7) The diagram of the proposed differential detection of STS (DSTS) scheme with two transmit antennas and one receive antenna is given in Figure At the transmitter, first we uniformly...
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Báo cáo hóa học: " Rotated Walsh-Hadamard Spreading with Robust Channel Estimation for a Coded MC-CDMA System" ppt
... codes with dH = 3, 4, The rate is 3/4 Robust channel estimation is performed for 4-QAM modulated data symbols channel estimation can maintain the performance gains based on rotated spreading ... the AWGN channel bound for a Rayleigh fading channel It does not perform worse without rotated modulation in case of an AWGN channel Latter is identified as an important fact that no degradation ... combination of rotating and multiplying each data symbol with a specific WalshHadamard sequence is defined as rotated spreading It is like column rotation of the original Walsh-Hadamard spreading matrix by...
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Báo cáo hóa học: " Spreading Sequence Design and Theoretical Limits for Quasisynchronous CDMA Systems" doc
... construct Spreading Sequence Design and Theoretical Limits for QS -CDMA the desirable optimal GO/GQO spreading sequences satisfying the theoretical bounds for different lengths, such as binary and nonbinary ... such as ultrawide bandwidth (UWB) THCDMA radio systems, multiuser radar and sonar systems Spreading Sequence Design and Theoretical Limits for QS -CDMA [63] Besides, GO/GQO sequences can also ... WLANs and Broadcasting, John Wiley & Sons and IEEE Press, New York, NY, USA, 2003 Spreading Sequence Design and Theoretical Limits for QS -CDMA [63] M Z Win and R A Scholtz, “Ultra-wide bandwidth...
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Báo cáo hóa học: " Adaptive Space-Time-Spreading-Assisted Wideband CDMA Systems Communicating over Dispersive " potx
... antennas, adaptive wireless systems, as well as wideband, broadband, and ultra -wideband code-division multiple access (CDMA) for advanced wireless mobile communication systems He has published over ... channel’s frequency selectivity, the proposed adaptive STS scheme is capable of significantly improving the throughput of W -CDMA systems For WCDMA systems transmitting at a data rate of 3Rb instead ... W -CDMA systems considered Since W -CDMA signals typically experience high-dynamic frequency-selective fading in both urban W -CDMA Using Space-Time Spreading and suburban areas, the proposed adaptive...
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Báo cáo toán hoc:" Tight Bounds for Quasirandom Rumor Spreading Spyros Angelopoulos Benjamin Doerr Konstantinos Panagiotou Anna Huber" pot
... determined in [8] similar bounds for several a Cayley graphs The Quasirandom Push Model Recently, Doerr, Friedrich, and Sauerwald [7] proposed a quasirandom model for randomized rumor spreading The basic ... the quasirandom model, after ξ rounds each vertex v ∈ V informed ξ − Q(v) other vertices, where Q(v) is the number of the round in which v was informed for the first time (or ξ if it was not informed ... phase This means that only the newly informed vertices from the previous phase inform, and all vertices, which become informed by them, form the set of newly informed vertices The concept of lazy...
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