Gradient Descent Interference Avoidance with Target SIR Matching
Dimitrie C. Popescu, Otilia Popescu, Danda B. Rawat · 2008
In this paper we present a new algorithm for joint codeword and power adaptation in the uplink of code division multiple access (CDMA) systems, in which codewords are adjusted using gradient-descent interference avoidance, and powers are updated to match target signal-to-interference plus noise-ratio (SINR) values. The proposed algorithm is analyzed and illustrated with numerical examples obtained from simulations.