129 optimal jamming power allocation a set of n

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: The total interference-plusnoise power at receiver i is given by Ii = Aijk pjk + σ j =i, k=1,...,n where σ > 0 is the known, given (self) noise power of the receivers. Note that the powers of the interference and noise signals add to give the total interference-plus-noise power. The receivers use coherent detection and combining of the desired message signals, which means the effective received signal power at receiver i is given by Si = k=1,...,n 2 (Aiik pik )1/2 . (Thus, the amplitudes of the desired signals add to give the effective signal amplitude.) The total signal to interference-plus-noise ratio (SINR) for receiver i is given by γi = Si /Ii . The problem is to choose transmitter powers pjk that maximize the minimum SINR mini γi , subject to the power limits. Explain in detail how to solve this problem using convex or quasiconvex optimization. If you transform the problem by using a different set of variables, explain completely. Identify the objective function, and all constraint functions, indicating if they are convex or quasiconvex, et...
View Full Document

Ask a homework question - tutors are online