搜索结果: 226-240 共查到“信息论”相关记录689条 . 查询时间(0.376 秒)
GPS Signal Acquisition via Compressive Multichannel Sampling
GPS compressive sensing spread spectrum analog compressed sensing
2011/9/14
Abstract: In this paper, we propose an efficient acquisition scheme for GPS receivers. It is shown that GPS signals can be effectively sampled and detected using a bank of randomized correlators with ...
Abstract: The purpose of this paper is to detail the article of Carlet. Along the way I recall some interesting results in the theory of finite fields, I give (new) proofs of some known results, and t...
Heterogeneous Cellular Networks with Flexible Cell Association: A Comprehensive Downlink SINR Analysis
Heterogeneous Cellular Networks Flexible Cell Association Comprehensive Downlink SINR Analysis
2011/9/14
Abstract: In this paper we develop a tractable framework for SINR analysis in downlink heterogeneous cellular networks (HCNs) with flexible cell association policies. The HCN is modeled as a multi-tie...
Achieving "Massive MIMO" Spectral Efficiency with a Not-so-Large Number of Antennas
Channel training downlink scheduling frequency reuse inter-cell cooperation large-system analysis
2011/9/15
Abstract: The main focus and contribution of this paper is a novel network-MIMO TDD architecture that achieves spectral efficiencies comparable with "Massive MIMO", with one order of magnitude fewer a...
Snake-in-the-Box Codes for Rank Modulation
Snake-in-the-box codes rank modulation permutations flash memory
2011/9/13
Abstract: Motivated by the rank-modulation scheme with applications to flash memory, we consider Gray codes capable of detecting a single error, also known as snake-in-the-box codes. We study two erro...
A Generalized Poor-Verdu Error Bound for Multihypothesis Testing and the Channel Reliability Function
Hypothesis testing probability of error maximum-a-posteriori and maximum likelihood estimation channel coding
2011/9/14
Abstract: A lower bound on the minimum error probability for multihypothesis testing is established. The bound, which is expressed in terms of the cumulative distribution function of the tilted poster...
Duals of Affine Grassmann Codes and their Relatives
Duals of Affine Grassmann Codes Information Theory
2011/9/14
Abstract: Affine Grassmann codes are a variant of generalized Reed-Muller codes and are closely related to Grassmann codes. These codes were introduced in a recent work [2]. Here we consider, more gen...
Communication Systems for Grid Integration of Renewable Energy Resources
Communication Systems Grid Renewable Energy
2011/9/13
Abstract: There is growing interest in renewable energy around the world. Since most renewable sources are intermittent in nature, it is a challenging task to integrate renewable energy resources into...
Complex Orthogonal Designs with Forbidden $2 \times 2$ Submatrices
Complex Orthogonal Forbidden Information Theory
2011/9/13
Abstract: Complex orthogonal designs (CODs) are used to construct space-time block codes. COD $\mathcal{O}_z$ with parameter $[p, n, k]$ is a $p \times n$ matrix, where nonzero entries are filled by $...
Spatially-Coupled Codes and Threshold Saturation on Intersymbol-Interference Channels
Area theorem BP threshold EXIT curve GEXIT curve ISI channels LDPC codes MAP threshold
2011/9/13
Abstract: Recently, it has been observed that terminated low-density-parity-check (LDPC) convolutional codes (or spatially-coupled codes) appear to approach capacity universally across the class of bi...
Performance Guarantee under Longest-Queue-First Schedule in Wireless Networks
Wireless Networks Scheduling Longest Queue First Policy Stability Local Pooling Interference
2011/9/13
Abstract: Efficient link scheduling in a wireless network is challenging. Typical optimal algorithms require solving an NP-hard sub-problem. To meet the challenge, one stream of research focuses on fi...
Convergence of Weighted Min-Sum Decoding Via Dynamic Programming on Trees
belief propagation max product min sum LDPC codes linear programming decoding
2011/9/9
Abstract: Applying the max-product (and belief-propagation) algorithms to loopy graphs is now quite popular for best assignment problems. This is largely due to their low computational complexity and ...
Use of Hamiltonian Cycles in Cryptograph
Diffie-Hellman key exchange Symmetric key RSA PKI SSL/TLS VPN Hamiltonian cycle
2011/9/9
Abstract: In cryptography, key distribution is always an important issue in establishing a symmetric key. The famous method of exchanging keys, Diffie-Hellman key exchange, is also vulnerable to a man...
Non-equilibrium Information Envelopes and the Capacity-Delay-Error-Tradeoff of Source Coding
Non-equilibrium Information Envelopes Capacity-Delay-Error-Tradeoff Source Coding Information Theory
2011/10/8
Abstract: This paper develops an envelope-based approach to establish a link between information and queueing theory. Unlike classical, equilibrium information theory, information envelopes focus on t...
Abstract: We study the problem of navigating through a database of similar objects using comparisons. This problem is known to be strongly related to the small-world network design problem. However, c...