Resource allocation algorithm based on the multi-relay decoding-and-forwarding in OFDM system
For the rate maximization problem in OFDM decode-and-forward relay system，a resource allocation algorithm based on the multi-relay forwarding was proposed. In the algorithm，the same subcarrier could be forwarded by multiple relays，and the base station could use the subcarriers that are not occupied...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Beijing Xintong Media Co., Ltd
2016-04-01
|
| Series: | Dianxin kexue |
| Subjects: | |
| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2016081/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841529912184274944 |
|---|---|
| author | Tao GUO Youming LI Ting LI Yuzhi YAN |
| author_facet | Tao GUO Youming LI Ting LI Yuzhi YAN |
| author_sort | Tao GUO |
| collection | DOAJ |
| description | For the rate maximization problem in OFDM decode-and-forward relay system，a resource allocation algorithm based on the multi-relay forwarding was proposed. In the algorithm，the same subcarrier could be forwarded by multiple relays，and the base station could use the subcarriers that are not occupied by relays to transmit new symbols in the second phase. To reduce the computational complexity，the information transmission mode and the optimal relay set that assisting the transmission under relay mode were determined first，then the original problem was transformed into a dual problem to achieve the joint optimization solution of subcarrier-pairing and power allocation. Simulation results show that the proposed algorithm can achieve a higher system capacity. |
| format | Article |
| id | doaj-art-bc65ad55bf5545d0b42bbf07b7e69d00 |
| institution | Kabale University |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2016-04-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-bc65ad55bf5545d0b42bbf07b7e69d002025-01-15T03:15:02ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012016-04-0132242959609255Resource allocation algorithm based on the multi-relay decoding-and-forwarding in OFDM systemTao GUOYouming LITing LIYuzhi YANFor the rate maximization problem in OFDM decode-and-forward relay system，a resource allocation algorithm based on the multi-relay forwarding was proposed. In the algorithm，the same subcarrier could be forwarded by multiple relays，and the base station could use the subcarriers that are not occupied by relays to transmit new symbols in the second phase. To reduce the computational complexity，the information transmission mode and the optimal relay set that assisting the transmission under relay mode were determined first，then the original problem was transformed into a dual problem to achieve the joint optimization solution of subcarrier-pairing and power allocation. Simulation results show that the proposed algorithm can achieve a higher system capacity.http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2016081/OFDMrelayresource allocationsubcarrier pairing |
| spellingShingle | Tao GUO Youming LI Ting LI Yuzhi YAN Resource allocation algorithm based on the multi-relay decoding-and-forwarding in OFDM system Dianxin kexue OFDM relay resource allocation subcarrier pairing |
| title | Resource allocation algorithm based on the multi-relay decoding-and-forwarding in OFDM system |
| title_full | Resource allocation algorithm based on the multi-relay decoding-and-forwarding in OFDM system |
| title_fullStr | Resource allocation algorithm based on the multi-relay decoding-and-forwarding in OFDM system |
| title_full_unstemmed | Resource allocation algorithm based on the multi-relay decoding-and-forwarding in OFDM system |
| title_short | Resource allocation algorithm based on the multi-relay decoding-and-forwarding in OFDM system |
| title_sort | resource allocation algorithm based on the multi relay decoding and forwarding in ofdm system |
| topic | OFDM relay resource allocation subcarrier pairing |
| url | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2016081/ |
| work_keys_str_mv | AT taoguo resourceallocationalgorithmbasedonthemultirelaydecodingandforwardinginofdmsystem AT youmingli resourceallocationalgorithmbasedonthemultirelaydecodingandforwardinginofdmsystem AT tingli resourceallocationalgorithmbasedonthemultirelaydecodingandforwardinginofdmsystem AT yuzhiyan resourceallocationalgorithmbasedonthemultirelaydecodingandforwardinginofdmsystem |