Optimizing time and power allocation for cooperation diversity in a decode-and-forward three-node relay channel
Providing space diversity at mobile devices such as handsets, personal digital assistants (PDA), etc is costly and problematic, due to their strict space limitation. Recent studies, however, have revealed that extraordinary diversity gain, which results in the remarkable benefits of an increased ach...
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| Format: | Article |
| Language: | English |
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Academy Publisher
2008
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| Online Access: | http://irep.iium.edu.my/45862/ http://irep.iium.edu.my/45862/1/Elsheikh%2C_Optimizing_Time_and_Power_Allocation_for_Cooperation_Diversity_in_a_Decode-and-Forward_Three-Node_Relay_Channel%2C_Journal_of_Communications_2008.pdf |
| _version_ | 1848782863191769088 |
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| author | Elsheikh, Elsheikh Mohamed Ahmed |
| author_facet | Elsheikh, Elsheikh Mohamed Ahmed |
| author_sort | Elsheikh, Elsheikh Mohamed Ahmed |
| building | IIUM Repository |
| collection | Online Access |
| description | Providing space diversity at mobile devices such as handsets, personal digital assistants (PDA), etc is costly and problematic, due to their strict space limitation. Recent studies, however, have revealed that extraordinary diversity gain, which results in the remarkable benefits of an increased achievable transmission code-rate and a reduced information outage probability, can be obtained from a relay node in the proximity, which forwards the decoded information from the source node to the intended destination node via a diversity path. While previous works had shown the impressive gains from simple fixed-relaying schemes over non-relaying, this paper takes an information-theoretic viewpoint to study the optimal decode-and-forward (DF) single-hop relay strategy for maximizing the mutual information between the source and destination nodes exploiting the instantaneous channel state information at the nodes (CSIN), and for minimizing the outage probability if only the statistical channel information is known at the nodes (SCIN). In particular, our aim is to optimize the time and power distribution between the direct transmission and relaying phases, for a cooperative three-node relay fading channel. |
| first_indexed | 2025-11-14T16:12:13Z |
| format | Article |
| id | iium-45862 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T16:12:13Z |
| publishDate | 2008 |
| publisher | Academy Publisher |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-458622015-11-25T02:00:44Z http://irep.iium.edu.my/45862/ Optimizing time and power allocation for cooperation diversity in a decode-and-forward three-node relay channel Elsheikh, Elsheikh Mohamed Ahmed TK5101 Telecommunication. Including telegraphy, radio, radar, television Providing space diversity at mobile devices such as handsets, personal digital assistants (PDA), etc is costly and problematic, due to their strict space limitation. Recent studies, however, have revealed that extraordinary diversity gain, which results in the remarkable benefits of an increased achievable transmission code-rate and a reduced information outage probability, can be obtained from a relay node in the proximity, which forwards the decoded information from the source node to the intended destination node via a diversity path. While previous works had shown the impressive gains from simple fixed-relaying schemes over non-relaying, this paper takes an information-theoretic viewpoint to study the optimal decode-and-forward (DF) single-hop relay strategy for maximizing the mutual information between the source and destination nodes exploiting the instantaneous channel state information at the nodes (CSIN), and for minimizing the outage probability if only the statistical channel information is known at the nodes (SCIN). In particular, our aim is to optimize the time and power distribution between the direct transmission and relaying phases, for a cooperative three-node relay fading channel. Academy Publisher 2008-04 Article PeerReviewed application/pdf en http://irep.iium.edu.my/45862/1/Elsheikh%2C_Optimizing_Time_and_Power_Allocation_for_Cooperation_Diversity_in_a_Decode-and-Forward_Three-Node_Relay_Channel%2C_Journal_of_Communications_2008.pdf Elsheikh, Elsheikh Mohamed Ahmed (2008) Optimizing time and power allocation for cooperation diversity in a decode-and-forward three-node relay channel. Journal of Communications, 3 (2). pp. 43-52. ISSN 1796-2021 http://ojs.academypublisher.com/index.php/jcm/article/view/03024352 10.4304/jcm.3.2.43-52 |
| spellingShingle | TK5101 Telecommunication. Including telegraphy, radio, radar, television Elsheikh, Elsheikh Mohamed Ahmed Optimizing time and power allocation for cooperation diversity in a decode-and-forward three-node relay channel |
| title | Optimizing time and power allocation for cooperation diversity in a decode-and-forward three-node relay channel |
| title_full | Optimizing time and power allocation for cooperation diversity in a decode-and-forward three-node relay channel |
| title_fullStr | Optimizing time and power allocation for cooperation diversity in a decode-and-forward three-node relay channel |
| title_full_unstemmed | Optimizing time and power allocation for cooperation diversity in a decode-and-forward three-node relay channel |
| title_short | Optimizing time and power allocation for cooperation diversity in a decode-and-forward three-node relay channel |
| title_sort | optimizing time and power allocation for cooperation diversity in a decode-and-forward three-node relay channel |
| topic | TK5101 Telecommunication. Including telegraphy, radio, radar, television |
| url | http://irep.iium.edu.my/45862/ http://irep.iium.edu.my/45862/ http://irep.iium.edu.my/45862/ http://irep.iium.edu.my/45862/1/Elsheikh%2C_Optimizing_Time_and_Power_Allocation_for_Cooperation_Diversity_in_a_Decode-and-Forward_Three-Node_Relay_Channel%2C_Journal_of_Communications_2008.pdf |