Price-Based Resource Allocation in CDMA Networks and Stability Analysis
| Authors: | Yang Bo, Yanshan University, China
Guan Xinping, Yanshan University, China
Long Chengnian, Yanshan University, China |
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| Topic: | 2.3 Non-Linear Control Systems |
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| Session: | Nonlinear Control Applications II |
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| Keywords: | time delay, stability, wireless networks, power control, rate control |
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Abstract
We present an optimal model based on utility functions and pricing for downlink radio resource allocation in code division multiple access (CDMA) systems. The aim of this model is to achieve the throughput maximization via dynamic price adjustment. Due to the existence of action delays, we give globally asymptotical stability results using Lyapunov-Razumikhin arguments for rate and price evolvement closed-loop systems. Considering total power constraint for base station, we introduce a power allocation policy, which need only users’ local information. Simulation results validate the effectiveness of the joint rate and power control scheme.
