搜索结果: 151-165 共查到“知识库 信息论”相关记录312条 . 查询时间(0.406 秒)
Designing Nonlinear Turbo Codes with a Target Ones Density
Nonlinear Turbo Codes Target Ones Density Information Theory
2011/8/30
Abstract: Certain binary asymmetric channels, such as Z-channels in which one of the two crossover probabilities is zero, demand optimal ones densities different from 50%. Some broadcast channels, suc...
Cooperative Jamming for Secure Communications in MIMO Relay Networks
Cooperative Secure Communications MIMO Relay Networks Information Theory
2011/8/30
Abstract: Secure communications can be impeded by eavesdroppers in conventional relay systems. This paper proposes cooperative jamming strategies for two-hop relay networks where the eavesdropper can ...
The entropy functional, the information path functional's essentials and their connections to Kolmogorov's entropy, complexity and physics
Additive functional Entropy Singularities Natural Border Problem Invariant
2011/8/31
Abstract: The paper introduces the recent results related to an entropy functional on trajectories of a controlled diffusion process, and the information path functional (IPF), analyzing their connect...
Distributed SIR-Aware Scheduling in Large-Scale Wireless Networks
Distributed SIR-Aware Large-Scale Wireless Networks Information Theory
2011/8/31
Abstract: Opportunistic scheduling and routing can in principle greatly increase the throughput of decentralized wireless networks, but to be practical they must do so with small amounts of timely sid...
Abstract: We consider a multicell MIMO uplink channel where each base station (BS) is equipped with a large number of antennas N. Recent work has shown that, as N grows infinitely large, (i) the simpl...
Experiment-driven Characterization of Full-Duplex Wireless Systems
Experiment-driven Characterization Full-Duplex Wireless Systems Information Theory
2011/8/26
Abstract: We present an experiment-based characterization of passive and active self-interference cancellation mechanisms and we analyze the performance of full-duplex wireless communication systems. ...
Multilevel Polarization of Polar Codes Over Arbitrary Discrete Memoryless Channels
Polar Codes Memoryless Channels Information Theory
2011/8/30
Abstract: It is shown that the original construction of polar codes suffices to achieve the symmetric capacity of discrete memoryless channels with arbitrary input alphabet sizes. It is shown that in ...
Decoding of Matrix-Product Codes
Linear Codes Matrix-Product Codes Decoding Algorithm Minimum Distance
2011/8/30
Abstract: We propose a decoding algorithm for the $(u\mid u+v)$-construction that decodes up to half of the minimum distance of the linear code. We extend this algorithm for a class of matrix-product ...
Local failure detection and diagnosis in large sensor networks
diagnosis large sensor networks Information Theory
2011/8/29
Abstract: In this article, the joint fluctuations of the extreme eigenvalues and eigenvectors of a large dimensional sample covariance matrix are analyzed when the associated population covariance mat...
On the information-theoretic structure of distributed measurements
information-theoretic structure Information Theory Category Theory
2011/8/26
Abstract: The internal structure of a measuring device, which depends on what its components are and how they are organized, determines how it categorizes its inputs. This paper presents a geometric a...
The dimension of ergodic random sequences
Shannon-McMillan-Breiman theorem Martin-Lof random sequence effective Hausdorff dimension
2011/8/26
Abstract: Let \mu be a computable ergodic shift-invariant measure over the Cantor space. Providing a constructive proof of Shannon-McMillan-Breiman theorem, V'yugin proved that if a sequence x is Mart...
Application of Predictive Model Selection to Coupled Models
Predictive Model Selection Quantity of In-terest Model Validation Decision Making Bayesian Analysis
2011/9/29
Abstract: A predictive Bayesian model selection approach is presented to discriminate coupled models used to predict an unobserved quantity of interest (QoI). The need for accurate predictions arises ...
Distributed Robust Multi-Cell Coordinated Beamforming with Imperfect CSI: An ADMM Approach
coordinated multi-point (CoMP) multi-cell processing beamforming robust beamforming
2011/9/1
Abstract: Multi-cell coordinated beamforming (MCBF), where multiple base stations (BSs) collaborate with each other in the beamforming design for mitigating the inter-cell interference, has been a sub...
Bounds on the capacity of OFDM underspread frequency selective fading channels
OFDM underspread frequency selective fading channels Information Theory
2011/8/24
Abstract: The analysis of the channel capacity in the absence of prior channel knowledge (noncoherent channel) has gained increasing interest in recent years, but it is still unknown for the general c...
Does Quantum Interference exist in Twitter?
Quantum Twitter Social and Information Networks
2011/9/29
Abstract: It becomes more difficult to explain the social information transfer phenomena using the classic models based merely on Shannon Information Theory (SIT) and Classic Probability Theory (CPT),...