Resource control for elastic traffic in CDMA networks
Proceedings of the 8th annual international conference on Mobile computing and networking
Bursty traffic over CDMA: predictive MAI temporal structure, rate control and admission control
Computer Networks: The International Journal of Computer and Telecommunications Networking
Radio Resource Management for Cellular CDMA Systems Supporting Heterogeneous Services
IEEE Transactions on Mobile Computing
WIOPT '05 Proceedings of the Third International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks
Joint optimization of radio parameters: a top-down approach
Signal Processing - Special section: Advances in signal processing-assisted cross-layer designs
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We study the signal-to-interference ratio (SIR) and rate control for code division multiple access (CDMA) data users on the forward link under average or peak power constraints. The quality of service (QoS) for data users is specified by delay and error rate constraints as well as a family of utility functions representing the throughput and fairness among the data users. It is found that the optimal SIR and rate control algorithm has a hierarchical structure which can be easily implemented in a distributed manner. The SIR targets can be adjusted independently by the mobiles using information specific to the individual users. The data rates can be adjusted jointly by the base station based on limited feedback from the mobiles. We also propose a two-level iteration algorithm for both the mobile and the base station to efficiently compute the SIR and data rates. Our results show that a flexible tradeoff between total system throughput (sum of rates achieved) and fairness (similarity in data rates) can be achieved by choosing appropriate utility functions used in this scheme