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Detail
Journal Article
Optimum Uplink Power/Rate Control for Minimum Delay in CDMA Networks
- Authors
- Kwonhue Choi, Sooyoung Kim
- Issue Date
- 2003-12
- Citation
- ETRI Journal, v.25, no.6, pp.437-444
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- We derive a new joint power and rate control rule with which we can minimize the mean transmission delay in CDMA networks for a given mean transmission power. We show that it is optimal to respectively control the power inverse-linearly and the rate linearly to the square root of channel gain while maintaining the signal-to-interference ratio at a constant. We also show that the proposed joint power/rate control rule achieves excellent performance results in terms of the probability of the instantaneous delay being within a target delay against one-dimensional control schemes.