Abstract
Vectoring is a well-known technique to mitigate multi- user interference in the downlink Digital Subscriber Line (DSL) transmission. While effective in canceling interference, vectoring does incur major computational overhead, resulting in significant energy consumption when the number of lines is large. To facilitate energy efficient transmission, a mechanism called discontinuous operation (DO) has been recently proposed. In this paper, we consider the key resource allocation problems in DSL: given the transmission opportunities, determine the optimal DO transmission scheme, and optimally adjust an existing DO transmission scheme for energy saving consideration. We formulate these problems and propose efficient real- time algorithms to solve them to global optimality. Simulation results are shown to demonstrate the efficiency and the effectiveness of the proposed algorithms.
| Original language | English (US) |
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| Title of host publication | 2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781509013289 |
| DOIs | |
| State | Published - 2016 |
| Event | 59th IEEE Global Communications Conference, GLOBECOM 2016 - Washington, United States Duration: Dec 4 2016 → Dec 8 2016 |
Publication series
| Name | 2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings |
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Other
| Other | 59th IEEE Global Communications Conference, GLOBECOM 2016 |
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| Country/Territory | United States |
| City | Washington |
| Period | 12/4/16 → 12/8/16 |
Bibliographical note
Funding Information:This work is funded by a gift from Huawei Technologies Co. Ltd. Z.-Q. Luo is supported by NSFC, Grant No. 61571384, and by the Leading Talents of Guang Dong Province program, Grant No. 00201510. Z. Yao is supported by NSFC, Grant No. 61372127
