Joint Terminals and Relay Optimization for Two-way Power Line Information Exchange Systems with QoS Constraints
The quality-of-service (QoS) criteria (measured in terms of the minimum capacity requirement in this paper) are very important to practical indoor power line communication (PLC) applications as they greatly affect the user experience. With a two-way multicarrier relay configuration, in this paper we...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Published: |
SpringerOpen
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/23915 |
| _version_ | 1848751285057093632 |
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| author | Wu, X. Rong, Yue |
| author2 | Brian Evans |
| author_facet | Brian Evans Wu, X. Rong, Yue |
| author_sort | Wu, X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The quality-of-service (QoS) criteria (measured in terms of the minimum capacity requirement in this paper) are very important to practical indoor power line communication (PLC) applications as they greatly affect the user experience. With a two-way multicarrier relay configuration, in this paper we investigate the joint terminals and relay power optimization for the indoor broadband PLC environment, where the relay node works in the amplify-and-forward (AF) mode. As the QoS-constrained power allocation problem is highly non-convex, the globally optimal solution is computationally intractable to obtain. To overcome this challenge, we propose an alternating optimization (AO) method to decompose this problem into three convex/quasi-convex sub-problems. Simulation results demonstrate the fast convergence of the proposed algorithm under practical PLC channel conditions. Compared with the conventional bidirectional direct transmission (BDT) system, the relay-assisted two-way information exchange (R2WX) scheme can meet the same QoS requirement with less total power consumption. |
| first_indexed | 2025-11-14T07:50:17Z |
| format | Journal Article |
| id | curtin-20.500.11937-23915 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:50:17Z |
| publishDate | 2015 |
| publisher | SpringerOpen |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-239152017-02-28T01:37:05Z Joint Terminals and Relay Optimization for Two-way Power Line Information Exchange Systems with QoS Constraints Wu, X. Rong, Yue Brian Evans two-way information exchange non-regenerative relay power line communication (PLC) quality-of-service (QoS) power allocation The quality-of-service (QoS) criteria (measured in terms of the minimum capacity requirement in this paper) are very important to practical indoor power line communication (PLC) applications as they greatly affect the user experience. With a two-way multicarrier relay configuration, in this paper we investigate the joint terminals and relay power optimization for the indoor broadband PLC environment, where the relay node works in the amplify-and-forward (AF) mode. As the QoS-constrained power allocation problem is highly non-convex, the globally optimal solution is computationally intractable to obtain. To overcome this challenge, we propose an alternating optimization (AO) method to decompose this problem into three convex/quasi-convex sub-problems. Simulation results demonstrate the fast convergence of the proposed algorithm under practical PLC channel conditions. Compared with the conventional bidirectional direct transmission (BDT) system, the relay-assisted two-way information exchange (R2WX) scheme can meet the same QoS requirement with less total power consumption. 2015 Journal Article http://hdl.handle.net/20.500.11937/23915 SpringerOpen restricted |
| spellingShingle | two-way information exchange non-regenerative relay power line communication (PLC) quality-of-service (QoS) power allocation Wu, X. Rong, Yue Joint Terminals and Relay Optimization for Two-way Power Line Information Exchange Systems with QoS Constraints |
| title | Joint Terminals and Relay Optimization for Two-way Power Line Information Exchange Systems with QoS Constraints |
| title_full | Joint Terminals and Relay Optimization for Two-way Power Line Information Exchange Systems with QoS Constraints |
| title_fullStr | Joint Terminals and Relay Optimization for Two-way Power Line Information Exchange Systems with QoS Constraints |
| title_full_unstemmed | Joint Terminals and Relay Optimization for Two-way Power Line Information Exchange Systems with QoS Constraints |
| title_short | Joint Terminals and Relay Optimization for Two-way Power Line Information Exchange Systems with QoS Constraints |
| title_sort | joint terminals and relay optimization for two-way power line information exchange systems with qos constraints |
| topic | two-way information exchange non-regenerative relay power line communication (PLC) quality-of-service (QoS) power allocation |
| url | http://hdl.handle.net/20.500.11937/23915 |