Feedback threshold with guaranteed QoS in multiuser OFDM systems
| Autor: | Chao-wei Yuan, Yan-hua Zhang, Yinglei Teng, Ruizhe Yang |
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| Rok vydání: | 2009 |
| Předmět: |
Scheme (programming language)
Computer Networks and Communications Orthogonal frequency-division multiplexing Computer science business.industry Quality of service Real-time computing Outage probability Signal Processing Computer Science::Networking and Internet Architecture Resource allocation Resource management business computer Information Systems computer.programming_language Computer network |
| Zdroj: | The Journal of China Universities of Posts and Telecommunications. 16:24-28 |
| ISSN: | 1005-8885 |
| DOI: | 10.1016/s1005-8885(08)60196-x |
| Popis: | A threshold setting scheme is proposed based on the resource management and limited feedback theory in multiuser orthogonal frequency division multiplexing (OFDM) systems. In adaptive resource allocation, the factors denoting the quality of service (QoS) and fairness are both considered as the user weight. From the aspect of feedback outage probability, the proposed algorithm sets the threshold for each user related to its weight, which brings enough feedback to the user with greater weight. Analysis and simulation results show that, compared with the threshold ignoring weights, the proposed scheme has much lower feedback load while with better QoS. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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