Description: turbo码中各种交织器的设计，可以据此改编，设计出适合系统需要的交织器-a variety of turbo code interleaver design can be adapted accordingly, need to design a suitable system of interleaver Platform: |
Size: 2048 |
Author:wxp |
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Description: 用C语言编写的交织器，包括3GPP交织器，随机交织器，螺旋交织器，对角交织器，块交织，循环交织器等-Using C language interleaver, including the 3GPP interleaver, random interleaver, interleaver spiral, diagonal interleaver, block cutting, cutting cycle, etc. Platform: |
Size: 6144 |
Author:王雨 |
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Description: 本设计选取CDMA通信系统中的接入信道部分进行仿真与分析。首先，通过学习相应的理论知识，熟悉接入信道实现的过程，对每一步的原理有了较深的理解，同时，也对MATALB软件进行熟悉和了解，对MATLAB软件中的SIMULINK部分及其内部的CDMA模块用法和参数设置进行熟悉，然后运用MATLAB软件对接入信道部分进行设计，并逐步地对各个模块进行分析、仿真与验证。目的是通过毕业设计工作熟悉现代无线通信系统的基本构成与基本工作原理，重点掌握卷积编码、块交织和码扩展等相关编码技术，并能将这些技术应用实际系统设计，提高自己对CDMA通信系统知识的认识。-This design choose the part of connect channel to simulate and analyse. First,we can familiar with the process of connect channel ,understand the principleof every step of the procedure about thre channel,after studying the relating knowledge .At the same time ,we an also have some acquaintance with the software about MATLAB and the part of SIMULINK and how to set the parameter of every klock in the soft.Then we can use the MATLAB software to design the part of the connect channel, to analyse , to simulate and to validate the design of every block gradually. This purpose is to be familiar with the basic structure and basic principle of the morden wireless communication system, to mastery the technology about the Convolutional Encoder,Interleaver ,Coder spread and so forth, then use those technology to design system in practice,so that to improve our knowledge about the CDMA communication system. Platform: |
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Author:xxxmmmccc |
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Description: Block-interleaver/deinterleaver according to the IEEE 802.11-2007
Defined by two step-permutation :
The first permutation ensures that adjacent coded bits are mapped onto
nonadjacent sub-carriers. The second ensures that adjacent coded bits
are mapped alternately onto less and more significant bits of the
constellation and, thereby, long runs of low reliability (LSB) bits
are avoided.
Tested and works we-Block-interleaver/deinterleaver according to the IEEE 802.11-2007
Defined by two step-permutation :
The first permutation ensures that adjacent coded bits are mapped onto
nonadjacent sub-carriers. The second ensures that adjacent coded bits
are mapped alternately onto less and more significant bits of the
constellation and, thereby, long runs of low reliability (LSB) bits
are avoided.
Tested and works well Platform: |
Size: 1024 |
Author:skunster |
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Description: Another popular turbo interleaver is the row-column (or block) interleaver which, unlike S-random interleavers, has a very simply algorithmic implementation Platform: |
Size: 1024 |
Author:wayne |
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Description: A sample Matlab code that simulates the above mentioned block interleaver design is given below.
The input data is a repetitive stream of following symbols Platform: |
Size: 1024 |
Author:Alia |
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Search - block interleaver