Unrecognized function or variable 'sumrate'. Error in d2d (line 66) [R_cell_up_first, R_cell_down_first, sum_rate] = sumrate(d2d_pair_first, cell_pair_first, dis, h, num_users, Pd_intended, Pb_intended, P_d2d_intended, d0, eta, side_len)

Question

Pranav Krishna 2021-2-20

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/750949-unrecognized-function-or-variable-sumrate-error-in-d2d-line-66-r_cell_up_first-r_cell_down_fi

回答： Nilesh Jadav 2022-1-5

clc;
clear;
close;
Pd_intended = input('What is the power intended at the base station by each cellular user?');
P_d2d_intended = input('What is the total intended interference at the BS due to all D2D users?');
Pb_intended = input('What is the intended power at the cell edge? (in watts please)');
%num = [5 6 7 8 9 10 15 20 25 30 35 40 45 50 60 70 80 100 150 200];
%num = [1:9 10:5:25 30:10:70 100];
num = [80, 90];
side_len = 400; % units: meters
N = 1; % noise power
eta = 4;
d0 = 10; % meters
%sum_rates = zeros(size(num,2), 100);
for s = 1:size(num,2)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Plotting the data points
%%% Red is transmitter and blue is Receiver
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%subplot(121);
num_users = num(s);
points_required = 2*(num_users) + 1;
%side_len = 400; % units: meters
for iter = 1:100
t = side_len*rand(num_users,2);
r = side_len*rand(num_users,2);
t = [t; side_len/2 side_len/2]; %% Base station
r = [r; side_len/2 side_len/2]; %% Base station
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Calculate distance from every Tx or every other Rx and the BS. Note that
%%% the last element of the array will be 0, since its the distance between
%%% the base station and itself. Then calculate the channel gains too
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
for i=1:num_users+1
    for j=1:num_users+1
        dis(i,j) = norm(t(i,:)-r(j,:));
        h(i,j) = min(1,((dis(i,j)/d0)^(-eta)));
    end
end
%rand_vec = round(rand(1,num_users));
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% MCMC Optimisation Algorithm
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% while(size(find(rand_vec==1),2)<=2)
%     rand_vec = round(rand(1,num_users));
% end
% disp(rand_vec);
tic;
%rand_vec = ones(1,num_users);
rand_vec = round(rand(1,num_users));
%rand_vec = zeros(1,num_users);
disp(rand_vec);
d2d_pair_first = find(rand_vec==1) % All d2d users
cell_pair_first = find(rand_vec==0) % All cellular users
[R_cell_up_first, R_cell_down_first, sum_rate] = sumrate(d2d_pair_first, cell_pair_first, dis, h, num_users, Pd_intended, Pb_intended, P_d2d_intended, d0, eta, side_len)
a_old = 0;
%a_new = randi(num_users);
a_new = 0; 
if (2^num_users) < 10000
    iterations = 2^(num_users-1);
else
    iterations = 200*num_users;
end
for i = 1:iterations
rand_vec_new = rand_vec;
%To pick a random element and toggle its state
%1 means d2d user and 0 means cellular user
while(a_old==a_new)
    a_new = randi(num_users);
end
%a_new
if(rand_vec_new(a_new)==0)
    rand_vec_new(a_new)=1;
elseif(rand_vec_new(a_new)==1)
    rand_vec_new(a_new)=0;
end
a_old = a_new;
d2d_pair = find(rand_vec_new==1); % All d2d users
cell_pair = find(rand_vec_new==0); % All cellular users
%disp('iteration is');disp(i);
% cell_pair_first
% R_cell_up_first
[delta_R, R_cell_up, R_cell_down] = sumrate1(d2d_pair, d2d_pair_first, cell_pair, cell_pair_first, R_cell_up_first, R_cell_down_first, h, dis, num_users, Pd_intended, Pb_intended, P_d2d_intended, d0, eta, side_len);
disp(['delta R is ', num2str(delta_R)]);
disp(num(s));
disp(iter);
if(delta_R > 0)
    rand_vec = rand_vec_new;
    d2d_pair_first = d2d_pair;
    cell_pair_first = cell_pair;
    R_cell_up_first = R_cell_up;
    R_cell_down_first = R_cell_down;
    %sum_rate = sum_rate_new;
end
end
time = toc; 
disp('The time taken is : '); disp(time);
disp(rand_vec);
d2d_pair = find(rand_vec==1); % All d2d users
cell_pair = find(rand_vec==0); % All cellular users
[R_up, R_down, sum_rates(s,iter)] = sumrate(d2d_pair, cell_pair, dis, h, num_users, Pd_intended, Pb_intended, P_d2d_intended, d0, eta, side_len);
end
end
sum_rates_new = sum_rates';
sum = mean(sum_rates_new);
plot(num, sum);
%% when i tried to run the code i got the error like  "Unrecognized function or variable 'sumrate'"
%%Error in d2d (line 66)
%%[R_cell_up_first, R_cell_down_first, sum_rate] = sumrate(d2d_pair_first, cell_pair_first, dis, h, num_users, Pd_intended, Pb_intended, P_d2d_intended, d0, eta, side_len)
%% what to do now? also i have tried which sumrate but i got sumrate not found

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Nilesh Jadav 2022-1-5

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/750949-unrecognized-function-or-variable-sumrate-error-in-d2d-line-66-r_cell_up_first-r_cell_down_fi#answer_868535

Hello Pranav,

Did you find any solution for the problem? Please share if you got any possible solution to this problem, as I'm facing the same issue. It would be helpful for me.

Thanks