Description: This paper is about serially concatenated LDGM codes for MIMO channel. The ability of Serially-Concatenated Low Density Generator Matrix (SCLDGM)
codes to approach the capacity of ergodic Multiple-Input Multiple-Output (MIMO) channels is investigated. The paper explains how to design good SCLDGM codes using EXtrinsic Information Transfer (EXIT) analysis and
optimum detection. Platform: |
Size: 214016 |
Author:mike zhou |
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Description: EXtrinsic Information Transfer (EXIT) charts are useful for characterizing the convergence properties and the performance of turbo receivers. Turbo receivers are generally constructed from two or more Soft Input Soft Output (SISO) modules. By simulating a single SISO module, the transfer characteristic of the SISO module can be obtained using the EXIT class. The transfer characteristics of two SISO modules represented on the same figure by switching the axes give the EXIT diagram. Platform: |
Size: 2048 |
Author:baktha |
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Description: EXIT图，外信息转移图，对做迭代分析的非常有帮助。-EXIT chart, extrinsic information transfer chart, right to do iterative analysis very helpful. Platform: |
Size: 5120 |
Author:张明 |
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Description: 5G通信必须用到的编码：Turbo码是Claude.Berrou等人在1993年首次提出的一种级联码。基本原理是编码器通过交织器把两个分量编码器进行并行级联，两个分量编码器分别输出相应的校验位比特；译码器在两个分量译码器之间进行迭代译码，分量译码器之间传递去掉正反馈的外信息，这样整个译码过程类似涡轮（Turbo）工作。因此，这个编码方法又被形象地称为Turbo码。Turbo码具有卓越的纠错性能，性能接近香农限，而且编译码的复杂度不高。-5G communication must be used in coding: Turbo code is a concatenated code Claude.Berrou et al in 1993 first proposed. The basic principle is that the encoder by interleaving the two components is parallel concatenated encoder, two component encoder outputs the parity bit bit decoder between the two components decoder iterative decoding, remove extrinsic information transfer between the positive feedback component decoder, so that the entire decoding process similar turbine (turbo) work. Thus, this coding method has been aptly called Turbo codes. Turbo codes have excellent error correction performance, performance close to the Shannon limit, and the complexity of the codec is not high. Platform: |
Size: 17408 |
Author:王大神 |
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Description: 经典的TURBO码EXIT图迭代系统分析程序，非常值得一看-Classical extrinsic information transfer chart (EXIT)code for Turbo decoding, which is worth reading for the beginers Platform: |
Size: 4075520 |
Author:陈丹 |
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Description: 中继信道下 利用EXIT算法进行中继选择， Lajos Hanzo 实验室的成果(In this paper, we have proposed and investigated an
attractive joint source coding, channel coding, and modulation
(JSCM) scheme for a two-way relaying system. We commence by
quantifying the achievable capacity of the corresponding two-way
relay channel before proposing low-complexity source coding
schemes for concatenation with bandwidth- and power-efficient
coded modulation schemes. Extrinsic information transfer (EXIT)
charts are used to investigate the decoding convergence of the joint
source and channel decoder and for the overall system design. The
quality of the decoded source signals is quantified using the bit
error ratio (BER) metric. It is found that the two-way-relay-based
JSCM scheme is capable of attaining a combined coding and relaying gain of 5.7 dB over the conventional noncooperative JSCM
scheme when communicating over uncorrelated Rayleigh fading
channels in an outdoor environment) Platform: |
Size: 1052672 |
Author:xmucecc |
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