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Weight Distributions of Multi-Edge type LDPC Codes
low-density parity-check code structured codes weight distributions
2010/11/30
The multi-edge type LDPC codes, introduced by Richardson and Urbanke, present the general class of struc-tured LDPC codes. In this paper, we derive the average weight distributions of the multi-edge t...
The maximum size of a binary code is studied as a function of its length n, minimum distance d, and minimum codeword weight w. This function B(n, d, w) is first characterized in terms of its exponenti...
Novel Codes Family for Modified Spectral-Amplitude-Coding OCDMA Systems and Performance Analysis
Novel Codes Family Modified Spectral-Amplitude-Coding OCDMA Systems Performance Analysis
2010/12/10
In this paper a novel family of codes for modified spectral-amplitude-coding optical code division multiple access (SAC-OCDMA) is introduced. The proposed codes exist for more number of processing gai...
In [13], K¨otter and Kschischang presented a new model for error correcting codes in network coding. The alphabet in this model is the subspace lattice of a given vector space.
Robust Linear Precoder Design for Multi-cell Downlink Transmission
Robust Linear Precoder Design for Multi-cell Downlink Transmission
2010/12/13
Coordinated information processing by the base stations of multi-cell wireless networks enhances the overall quality of communication in the network. Such coordinations for optimizing
any desired net...
Relay Selection with Network Coding in Two-Way Relay Channels
Relay Selection Network Coding Two-Way Relay Channels
2010/12/13
Abstract—In this paper, we consider the design of joint network coding (NC) and relay selection (RS) in two-way relay channels.In the proposed schemes, two users first sequentially broadcast their res...
Morphological dilation image coding with context weights prediction
quad-tree coding morphological dilation variable-length group test coding weights training
2010/12/14
This paper proposes an adaptive morphological dilation image coding with context weights prediction. The new dilation method is not to use fixed models, but to decide whether a coefficient needs to be...
Applications of semidefinite programming to coding theory
Applications semidefinite programming to coding theory
2010/12/1
We survey recent generalizations and improvements of the linear programming method that involve semidefinite programming. A general framework using group representations and tools from graph theory is...
Bit-Interleaved Coded Multiple Beamforming with Perfect Coding
Bit-Interleaved Coded Multiple Beamforming Perfect Coding
2010/12/8
When the Channel State Information (CSI) is known by the transmitter as well as the receiver, beamforming techniques that employ Singular Value Decomposition (SVD) are commonly used in Multiple-InputM...
Reduced Complexity Decoding for Bit-Interleaved Coded Multiple Beamforming with Constellation Precoding
Complexity Decoding Bit-Interleaved Coded Multiple Beamforming Constellation Precoding
2010/12/8
Multiple beamforming is realized by singular value decomposition of the channel matrix which is assumed to be perfectly known to the transmitter as well as the receiver. Bit-Interleaved Coded Multiple...
Encoded packet-Assisted Rescue Approach to Reliable Unicast in Wireless Networks
Error-prone Network Coding Unicast Rescue
2010/11/29
Recently, there has been a growing interest of using network coding to support reliable unicast over an error-prone channel. However, previous network coding schemes focused
only on native packets an...
The Witt group of non-degenerate braided fusion categories
Witt group non-degenerate braided fusion categories
2010/12/3
We give a characterization of Drinfeld centers of fusion categories as non-degenerate braided fusion categories containing a Lagrangian algebra.Further we study the quotient of the monoid of non-degen...
Uniqueness and Nondegeneracy of Ground States for $(-\Delta)^s Q + Q - Q^{\alpha+1} = 0$ in $\R$
Uniqueness Nondegeneracy of Ground States
2010/12/9
We prove uniqueness of ground state solutions Q = Q(|x|) > 0 for the nonlinear equation (−)sQ + Q − Q +1 = 0 in R,where 0 < s < 1 and 0 < < 4s 1−2s for s < 1/2 and 0 < < 1 for s...
A new sufficient condition for sum-rate tightness in quadratic Gaussian multiterminal source coding
sufficient condition sum-rate tightness quadratic Gaussian multiterminal source coding
2010/12/3
This work considers the quadratic Gaussian multiterminal (MT) source coding problem and provides a new sufficient condition for the Berger-Tung sum-rate bound to be tight. The converse proof utilizes ...
Collaborative Decoding of Interleaved Reed-Solomon Codes using Gaussian Elimination
Collaborative Decoding Interleaved Reed-Solomon Codes Gaussian Elimination
2010/12/8
We propose an alternative method for collaborative decoding of interleaved Reed-Solomon codes. Simulation results for a concatenated coding scheme using polar codes as inner codes are included.