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Power control based admission algorithms for maximizing throughput in DS-CDMA networks with multimedia traffic

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2 Author(s)
D. Ayyagari ; GTE Labs. Inc., Waltham, MA, USA ; A. Ephremides

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

Published in:

Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE

Date of Conference:

1999