-
大小: 76.54MB文件类型: .zip金币: 1下载: 0 次发布日期: 2022-11-12
- 语言: 其他
- 标签: LTE Link simulation
资源简介
维也纳大学LTE链路级仿真代码,适合LTE初学者了解全系统架构
代码片段和文件信息
function varargout = jCapacity(Hf varargin)
%
% [CTxWF CNoTx PfTxWF P N] = jCapacity(Hf P N)
%
% Computes the capacity in bits/s/Hz (bps/Hz) for frequency-selective
% wireless channels defined as a set of parallel channels in the frequency
% domain. The capacity is computed with channel knowledge at the
% transmitter side by using water filling power allocation over frequency
% (CTxWF) and without channel knowledge at the transmitter side (except
% the knowledge of the SNR) thus the power is equally allocated over all
% frequencies (CNoTx).
%
% Input parameters:
% Hf : attenuation values (channel coefficients). The dimension of Hf is
% assumed like this:
% size(hn) = [L nRA nTA]
% where:
% L is the number of frequency bins (number of parallel channels in the
% frequency domain.
% nRA = number of receive antennas.
% nTA = number of transmit antennas.
% P : sum power in linear units. The total transmit power.
% It is very important to note that in the case of capacity withouth
% channel knowledge at the transmitter side all frequencies allocate
% the same amount of power equal to: P / size(Hf 1)
% N : noise power in linear units.
%
% Output parameters:
% CTxWF : resulting capacity in bps/Hz with channel knowledge at the
% transmitter side (water filling capacity).
% CNoTx : resulting capacity in bps/Hz without channel knowledge at the
% transmitter side.
% PfTxWF: transmit power per frequency bin i.e. the water filling
% coefficients. Restriction: sum(PfTxWF) <= P. The transmit power
% coefficients for the case when no channel knowledge at the
% transmitter is available are always equal to P / size(Hf 1).
% PN can be recovered again.
%
% [CTxWF CNoTx PfTxWF P N] = jCapacity(Hf SNR)
%
% The same as before but specifying the SNR instead of the power of
% the noise and the total transmit power.
%
% [CTxWF CNoTx PfTxWF P N] = jCapacity(Hf)
%
% Assumes SNR = 1 which means that the SNR is somehow included in the
% attenuation values instead of being normalized.
%
% vargargout initialisation
for index=1:nargout
varargout{index} = -1;
end
if (nargin == 1)
% No input parameter for the SNR. It means SNR == 1.
P = 1;
N = 1;
elseif (nargin == 2)
% The input parameter is the SNR value.
P = varargin{1};
N = 1;
elseif (nargin == 3)
% The input parameters are (by this order) the total transmit power and
% the noise power both in linear units.
P = varargin{1};
N = varargin{2};
else
error(‘ Wrong input parameters. ‘);
end
L = size(Hf 1);
nRA = size(Hf 2);
nTA = size(Hf 3);
% MIMO => SVD => spatial water filling
gs = zeros(Lmin(nRAnTA));
for frqIndex = 1:L
G = squeeze(Hf(frqIndex : :));
singValues = svd(G);
gs(frqIndex:) = singValues;
end
Hf = reshape(gs1[]);
% The following code is valid
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
目录 0 2011-10-04 17:57 LTE_li
目录 0 2011-10-04 17:57 LTE_li
文件 2941 2011-10-04 16:36 LTE_li
文件 1872 2011-10-04 16:36 LTE_li
目录 0 2011-10-04 17:57 LTE_li
文件 2978 2011-10-04 16:36 LTE_li
文件 6706 2011-10-04 16:36 LTE_li
目录 0 2011-10-04 17:57 LTE_li
文件 7373 2011-10-04 16:35 LTE_li
文件 3893 2011-10-04 16:35 LTE_li
文件 4525 2011-10-04 16:35 LTE_li
文件 861 2011-10-04 16:35 LTE_li
文件 3247 2011-10-04 16:35 LTE_li
文件 11490 2011-10-04 16:35 LTE_li
文件 6964 2011-10-04 16:35 LTE_li
文件 985 2011-10-04 16:35 LTE_li
文件 26424 2011-10-04 16:35 LTE_li
文件 4218 2011-10-04 16:35 LTE_li
目录 0 2011-10-04 17:57 LTE_li
文件 157173 2011-10-04 16:35 LTE_li
文件 157105 2011-10-04 16:35 LTE_li
文件 81514 2011-10-04 16:35 LTE_li
文件 492 2011-10-04 16:35 LTE_li
文件 478 2011-10-04 16:35 LTE_li
文件 466 2011-10-04 16:35 LTE_li
文件 16416 2011-10-04 16:35 LTE_li
文件 79431 2011-10-04 16:35 LTE_li
文件 9685 2011-10-04 16:35 LTE_li
文件 4857 2011-10-04 16:35 LTE_li
文件 410 2011-10-04 16:35 LTE_li
文件 6910 2011-10-04 16:35 LTE_li
............此处省略309个文件信息
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