Distribute algorithm for two-hops Device-to-Device communications underlaying cellular networks
This paper proposed a power control algorithm for multi-hops device to device communication system under the single cellular networks.Different D2D links communicate by the shared band and users in one D2D links transmit message in two-hop Decode-and-forward mode.D2D users among different links whic...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Academic Journals Center of Shanghai Normal University
2015-02-01
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| Series: | Journal of Shanghai Normal University (Natural Sciences) |
| Subjects: | |
| Online Access: | http://qktg.shnu.edu.cn/zrb/shsfqkszrb/ch/reader/create_pdf.aspx?file_no=201501005&flag=1&year_id=2015&quarter_id= |
| Summary: | This paper proposed a power control algorithm for multi-hops device to device communication system under the single cellular networks.Different D2D links communicate by the shared band and users in one D2D links transmit message in two-hop Decode-and-forward mode.D2D users among different links which share the same band in asynchronous mode would get mutual interference.We use a proposal algorithm to approximate the optimistic solution with relaxation factor method,firstly get the closed expression of optimistic power,then we modify the transmission power to decrease the co-channel interference.At last,the simulation results verify the correctness of proposed power control algorithm and the improvement of system sum rate. |
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| ISSN: | 1000-5137 1000-5137 |