Resource allocation algorithm for downlink multiuser CoMP system
For downlink multiuser coordinated multi-point transmission (MU-CoMP) system,a fast resource allocation algorithm was proposed to solve the margin adaptive (MA) problem.Firstly the algorithm estimated the number of sub-carriers for each user based on its average channel gain and minimal-rate require...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2013-06-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436X.2013.06.001/ |
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| Summary: | For downlink multiuser coordinated multi-point transmission (MU-CoMP) system,a fast resource allocation algorithm was proposed to solve the margin adaptive (MA) problem.Firstly the algorithm estimated the number of sub-carriers for each user based on its average channel gain and minimal-rate requirement,and then an efficient algorithm was designed to complement subcarrier allocation.At last,fast bit-loading was achieved through pre-determining and remov-ing the inefficient spatial subchannels.Simulation results show that the proposed algorithm decreases the total transmit power with both the minimal-rate and bit error rate requirements satisfied,and obtains near-optimal performance with less complexity,compared with the optimal algorithm. |
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| ISSN: | 1000-436X |