Hi
How can i solve using CVX, for solving these form of problem;

min(norm(s,1)) ,s is block sparse , and There are two blocks N Dimension. Each block is K spars.
s is (K*N) *1 , Y is (2M)1 ,A is (2M)(KN) , N is (2M)*1.
st : norm(Y-As,2)< epsilon

The position sparse is the same in each block.
Regard

If s were a MATLAB variable, rather than a CVX variable, do you know a series of MATLAB commands which will construct s and properly populate it? If so, you might be well on your way to figuring out how to do it in CVX.