Abstract:

The joint power and data rate allocation in code division multiple access (CDMA) systems was studied. Using utility function as the optimization objective of resource allocation policy, a novel dualloop resource allocation algorithm was presented. Data rate was adjusted by the outer loop to meet fairness among users. Based on the rate allocation achieved by the outer loop, the inner loop allocated power to guarantee the maximum system utility. Outer loop should be controlled by inner loop. The fairness among different users is guaranteed and the system resource utilization is improved with this algorithm.

Key words: utility function, joint power and data rate allocation, fairness, resource utilization