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Imperfect channel knowledge used by the Method A

Capacity Limits and Performance Analysis of Cognitive Radio With Imperfect Channel Knowledge

Capacity Limits and Performance Analysis of Cognitive Radio With Imperfect Channel Knowledge

... be used for analysis of the SU transmit ...SU–PU channel gain is replaced by the max- imum of several exponentials of different mean values, and the exponential PU–SU interference is replaced by a sum of ...

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Multiple-input multiple-output wireless communications with imperfect channel knowledge

Multiple-input multiple-output wireless communications with imperfect channel knowledge

... wireless channel with no CSI at the transmitter and channel estimation at the receiver were ...with channel estimation at the ...fading channel to significantly degrade, while for a slow ...

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Performance analysis of hybrid cognitive radio systems with imperfect channel knowledge

Performance analysis of hybrid cognitive radio systems with imperfect channel knowledge

... perfect knowledge of the involved channels at the ST, however, such situations hardly exist in practical ...incorporates channel estimation at the ST, and consequently characterizes the performance of ...

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MULTIPLE-INPUT MULTIPLE-OUTPUT WIRELESS SYSTEM DESIGNS WITH IMPERFECT CHANNEL KNOWLEDGE

MULTIPLE-INPUT MULTIPLE-OUTPUT WIRELESS SYSTEM DESIGNS WITH IMPERFECT CHANNEL KNOWLEDGE

... access channel (MAC, uplink) is better understood than the broadcast channel (BC, downlink), due to their differences in interference and cooperation [17, ...perfect channel knowledge, with ...

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Analysis of hybrid adaptive/non-adaptive multi-user OFDMA systems with imperfect channel knowledge

Analysis of hybrid adaptive/non-adaptive multi-user OFDMA systems with imperfect channel knowledge

... current channel con- ditions by adaptively allocating the different resources to the different users in time and frequency ...sided channel knowledge of the individual lines between the transmitter and ...

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The Collateral Channel under Imperfect Debt Enforcement

The Collateral Channel under Imperfect Debt Enforcement

... and used capital and the heterogeneity in the com- position of real asset holdings across ...under imperfect enforcement and discuss an important implication of our empirical result: macroeconomic ...

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Hybrid adaptive/non adaptive multi user OFDMA systems in the presence of user specific imperfect channel knowledge

Hybrid adaptive/non adaptive multi user OFDMA systems in the presence of user specific imperfect channel knowledge

... the channel model and sys- tem assumptions is ...of imperfect channel knowledge is presented assum- ing two sources of impairments: time delays and esti- mation ...of imperfect ...

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Optimal Detection with Imperfect Channel

Estimation for Wireless Communications

Optimal Detection with Imperfect Channel Estimation for Wireless Communications

... Figure 4.8: MSE performance of the ML, ǫ-ML, and MMSE estimators of Jake’s fading model; N = 507, M = 23, νT s = 0.01, t 1 = 1. 4.10 shows the BER performance of the iterative receivers with a SIHO turbo decoder after ...

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Optimal monetary policy with imperfect common knowledge

Optimal monetary policy with imperfect common knowledge

... This result is found to be robust to a number of extensions, such as imperfect observations of shocks by the policy maker or uncertainty of the policy maker about the value of the private sector’s channel ...

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Imperfect Common Knowledge and the Effects of Monetary Policy

Imperfect Common Knowledge and the Effects of Monetary Policy

... This possibility of explaining the differential responsiveness of prices to different types of disturbances is also an important advantage of the noisy-information model over the model recently proposed by Mankiw and ...

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Optimal monetary policy with imperfect common knowledge

Optimal monetary policy with imperfect common knowledge

... This result is found to be robust to a number of extensions, such as imperfect observations of shocks by the policy maker or uncertainty of the policy maker about the value of the private sector’s channel ...

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Space-time block coding with imperfect channel estimation and synchronization

Space-time block coding with imperfect channel estimation and synchronization

... first used radio to contact with ships sailing the English channel, new wireless communications methods and services have been evolved remarkably and adopted by people enthusiastically throughout the ...

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Distributed Emitter Detector Design under Imperfect Communication Channel

Distributed Emitter Detector Design under Imperfect Communication Channel

... Significant amount of research has been dedicated towards the conventional distributed detec- tion (decision fusion) under the conditional independence assumption [4], [5], [6], [7], [8]. In practical settings the sensor ...

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Massive MIMO with imperfect channel state information and practical limitations.

Massive MIMO with imperfect channel state information and practical limitations.

... 2.1.2 Effective Linear Processing Algorithms A notable advantage of the massive MIMO system is that it allows the use of simple linear processing algorithms at both UL and DL directions [1,5,19]. For example, in [1], it ...

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Joint Linear Processing for an Amplify-and-Forward MIMO Relay Channel with Imperfect Channel State Information

Joint Linear Processing for an Amplify-and-Forward MIMO Relay Channel with Imperfect Channel State Information

... iterative method guarantees fast convergence for the case with the direct link, the global optimality cannot be proven since the joint optimization problem is ...

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Imperfect Knowledge and the Pitfalls of Optimal Control Monetary Policy

Imperfect Knowledge and the Pitfalls of Optimal Control Monetary Policy

... fixed values. We assume private agents forecast inflation, the unemployment rate, and the short-term interest rate using a unrestricted vector autoregression model (VAR) containing three lags of these three variables and ...

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A Model of housing and credit cycles with imperfect market

knowledge

A Model of housing and credit cycles with imperfect market knowledge

... In the period 2, house prices under learning are much higher relative to RE mainly due to more optimistic expectation about future prices. The temporary decline in house prices is due to the return of the interest rate ...

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Primary Channel Duty Cycle Estimation Under Imperfect Spectrum Sensing Based on Mean Channel Periods

Primary Channel Duty Cycle Estimation Under Imperfect Spectrum Sensing Based on Mean Channel Periods

... the knowledge of the occupancy rate ...occupied channel which can offer higher opportunistic spectrum to the unlicensed ...users. Channel Duty Cycle (DC) is a statistical parameter about the activity ...

6

Improved time and frequency synchronization in presence of imperfect channel state information

Improved time and frequency synchronization in presence of imperfect channel state information

... algorithm. Indeed, our first study shows that many simpli- fications in terms of arithmetic computational are feasible. Note for example in Equation 24, the matrix inversion is calculated on diagonal matrices; the ...

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Error rate analysis of cognitive radio transmissions with imperfect channel sensing

Error rate analysis of cognitive radio transmissions with imperfect channel sensing

... of imperfect sensing ...perform channel sensing, albeit with possible ...perfect knowledge of the channel fading, and the primary user’s received faded signals at the secondary receiver has a ...

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