Power control based admission algorithms for maximizing throughput in DS-CDMA networks with multimedia traffic
Deepak Ayyagari, Anthony Ephremides · 2003
The problem of jointly controlling the data rates and transmit powers of users, so as to maximize throughput in cellular DS-CDMA networks is addressed. The multicode (MC-CDMA) system, where the processing gain of each code is fixed and high rate users use multiple codes for transmission, and the variable gain (VG-CDMA) architectures are considered. The throughout maximization problem is formulated as a classical optimization problem, modeling the constraints arising from the data rate requirements and power budgets. Optimal strategies to maximize throughput in both systems are derived. While the MC-CDMA system has a simple optimal rate-power allocation algorithm, the VG-CDMA system has a more complex solution.