Báo cáo hóa học: " Research Article Power Allocation Strategies for Distributed Space-Time Codes in Amplify-and-Forward Mode" docx

... scheme in this subsection. For gaining insightinto the power allocation based on minimizing the SER, weare going to minimize the approximate MGF of the randomvariable γ, obtained in (51). Using ... Relaying through AF DSTC In this section, we propose power allocation schemes for the AF distributed space-time codes introduced in [7], basedon maximizing the received SNR at the destination ... we propose two power allocation schemes for the AF distributed space-time codes introduced in [7]. Weuse the approximate value of the MGF, which was derived in Section 3, for the power control...

Báo cáo hóa học: "Research Article Fixed Point Results for Generalized Contractive Multimaps in Metric Space" docx

... Fixed Point Theory andApplications, vol. 2009, Article ID 487161, 9 pages, 2009.10 Fixed Point Theory and Applicationsii for any x ∈ X, there exists y ∈ T x satisfying the following conditions:μωx, ... Tx is lower semicontinuous.Note that Theorem 1.3 generalizes Nadler’s contraction principle and Theorem 1.2.Most recently, Ciric 4 obtained some interesting ﬁxed point results which extend ... the existence of ﬁxedpoints for multivalued maps satisfying certain conditions. Our results unify and generalize4 Fixed Point Theory and Applicationsthe corresponding results of Mizoguchi...

Báo cáo hóa học: " Research Article Power Allocation Games in Interference Relay Channels: Existence Analysis of Nash Equilibria" pot

... links between the sourcesand destinations and there are two dedicated relays (one for each source-destination pair) implementing DF. The power allocation game consists in sharing the user’s power ... non-coordinated and interfering pairsof terminals. For example, relays could be introduced byan operator aiming at improving the performance of thecommunications of his customers. In such a ... mentioned in the beginning of this section, obtaining achievabletransmission rates for Gaussian IRCs from those for discrete IRCs is an easy task. Indeed, the latter consists in using Gaussian...

Báo cáo hóa học: " Research Article Fixed Point Theorems for ws-Compact Mappings in Banach Spaces" ppt

... 2.32Hindawi Publishing CorporationFixed Point Theory and ApplicationsVolume 2010, Article ID 183596, 13 pagesdoi:10.1155/2010/183596 Research Article Fixed Point Theorems for ws-Compact Mappings ... continue the study of ws-compact mappings, investigate the boundary conditions,and establish new ﬁxed point theorems. Speciﬁcally, we prove several ﬁxed point theorems for ws-compact mappings ... Now, we show that FrB is relativelyFixed Point Theory and Applications 13uniformly in n. Applying Corollary 11 in 13, page 294 once again, we infer that Ngun hasa weakly convergent...

báo cáo hóa học:" Research Article Signal Processing Strategies for Cochlear Implants Using Current Steering" docx

... Hires. For thisHindawi Publishing CorporationEURASIP Journal on Advances in Signal ProcessingVolume 2009, Article ID 531213, 20 pagesdoi:10.1155/2009/531213 Research Article Signal Processing Strategies ... M.(37)The spreading function has been deﬁned in the nonlinearfrequency domain, that is, in the analysis band domain z.Asthe sinusoids are extracted in the uniformly spaced frequencydomain of the ... L-FFT, the masking threshold must beunwarped from the analysis band domain into the uniformlyspaced frequency domain. The unwarping is accomplishedby linearly interpolating the spreading function...

Báo cáo hóa học: " Research Article Range-Based Localization for UWB Sensor Networks in Realistic Environments" pdf

... ismodeled in diﬀerent ways in literature, such as exponentially distributed [16, 22] and uniformly distributed [24]. In this article, we model it as a uniformly distributed randomvariable ranging ... programmingapproach to NLOS error mitigation in sensor networks,” in Proceedings of the 5th International Conference on Informa-tion Processing in Sensor Networks (IPSN ’06), pp. 301–308,Nashville, ... subgroupsstill include NLOS nodes. In this case, the number of NLOSnodes is greater than one. Then, the node having the highestprobability of being an NLOS node is determined in thefollowing way:We...

Báo cáo hóa học: " Research Article Video Data Hiding for Managing Privacy Information in Surveillance Systems" ppt

... Wornell, “Quantization index modulation:a class of provably good methods for digital watermarkingand information embedding,” in Proceedings of the IEEEInternational Symposium on Information Theory ... Nguyen, “Protecting and managing privacy information in video surveillance systems,” in Protecting Privacy in VideoSurveillance, Springer, New York, NY, USA, 2009.16 EURASIP Journal on Information ... using video data hiding for preserving the privacy information in the modiﬁedvideo itself in a seamless fashion. Using data hiding, thevideo bit stream will be accessible for both regular andauthorized...

Báo cáo hóa học: " Research Article Global Attractivity Results for Mixed-Monotone Mappings in Partially Ordered Complete Metric Spaces" potx

... b1.1is a continuous function satisfying the following properties:afx, y is nondecreasing in x ∈ a, b for each y ∈ a, b, and fx, y is nonincreasing in y ∈ a, b for each x ∈ a, ... beenincluded in 14 and applied successfully to some boundary value problems in ordinarydiﬀerential equations.Hindawi Publishing CorporationFixed Point Theory and ApplicationsVolume 2009, Article ... F : X × X → X be a map such that Fx, y is nondecreasing in x for all y ∈ X,and nonincreasing in y for all x ∈ X. Suppose that the following conditions hold.i There exists k ∈ 0, 1 withdFx,...

Báo cáo hóa học: " Research Article Effects of Unstable Links on AODV Performance in Real Testbeds" docx

... unidirectional links in AODV have been pro-posed in [17]. However, before explaining these techniques,it is worth pointing out how AODV originally establishesvalid routes exploiting unidirectional links.Let ... pagesdoi:10.1155/2007/19375 Research Article Effects of Unstable Links on AODV Performance in Real TestbedsEleonora Borgia and Franca DelmastroPervasive Computing and Networking Laboratory (PerLab), Inistitute for Informatics ... destination. In fact, examining a speciﬁcscenario in which all the possible routes are characterized byan unstable link we found that OLSR performance is poorsince it is not able to maintain...

Báo cáo hóa học: " Research Article Performance Analysis of Space-Time Block Codes in Flat Fading MIMO Channels with Offsets" potx

... “Performanceanalysis for orthogonal space-time block codes in the absenceof perfect channel state information,” in Proceedings of the 14thIEEE International Symposium on Personal, Indoor and MobileRadio ... Hong, “Performance analysis of space-time block codes in time-varying Rayleigh fading channels,” in Pro-ceedings of IEEE International Conference on Acoustics, Speechand Signal Processing (ICASSP ... totalinterference power in (17) is obtained in the appendix andthe average interfering power will be Power avg= 2Esσ2MSE +2(2v − 1)2Esσ2ωσ2σ2+MSE+2σ2+MSEN0.(18)Since...

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