On the existence of equilibria in noncooperative optimal flow control
Journal of the ACM (JACM)
Performance evaluation of TCP/RLP protocol stack over CDMA wireless link
Wireless Networks - Special issue on wireless multimedia networking
Virtual path bandwidth allocation in multiuser networks
IEEE/ACM Transactions on Networking (TON)
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
On congestion pricing in a wireless network
Wireless Networks
Differentiated services in wireless data networks
WOWMOM '02 Proceedings of the 5th ACM international workshop on Wireless mobile multimedia
Proceedings of the 9th annual international conference on Mobile computing and networking
IEEE Transactions on Wireless Communications
Dynamic rate adaptation and integrated rate and error control in cellular WCDMA networks
IEEE Transactions on Wireless Communications
Resource pricing and the evolution of congestion control
Automatica (Journal of IFAC)
IEEE Transactions on Computers
Dynamic resource scheduling schemes for W-CDMA systems
IEEE Communications Magazine
Class-based quality of service over air interfaces in 4G mobile networks
IEEE Communications Magazine
IEEE Journal on Selected Areas in Communications
IEEE Transactions on Neural Networks
A case for relative differentiated services and the proportional differentiation model
IEEE Network: The Magazine of Global Internetworking
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The wireless data services are getting more and more competitive because of the presence of multiple service providers, all of whom offer some relative advantages and flexibilities over the others. As a result, the user churn behavior (i.e., migration from one service provider to another) is causing tremendous revenue loss for the service providers and also failure of existing resource management algorithms to fully capture the impact of churning. Moreover, the quality of service (QoS) offered to users belonging to different classes calls for new resource management schemes that address the issues related to differentiated services. In this paper, we propose a framework to study the impact of user churn behavior on the resource management algorithms to provide class-based differentiated services in CDMA data networks. In particular, our framework incorporates the user churning behavior into the admission control and power management algorithms, so that the service provider's revenue loss due to churn can be minimized. Since optimal rate/power allocation in multi-rate CDMA systems is in general NP-Complete, we provide heuristics that try to provide solutions to the resource allocation problem in real-time. In our proposed framework, we add another layer of power management called Class-Based Power Allocation/Reduction (CBPAR) function, which works with the rate control algorithm to achieve power allocation. With CBPAR, the number of variables of the optimization problem is significantly reduced helping achieve the results in real-time. Our simulation study shows that the service provider's revenue can be improved with the help of CBPAR framework. It also reveals the relationship between users' sensitivity and tolerance to QoS degradation and optimal power allocations.