Optimal resource allocation for energy efficient transmission in DSL

Nan Zhang, Zhiqiang Yao, Yixian Liu, Stephen Boyd, Zhi Quan Luo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

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 languageEnglish (US)
Title of host publication2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509013289
DOIs
StatePublished - 2016
Event59th IEEE Global Communications Conference, GLOBECOM 2016 - Washington, United States
Duration: Dec 4 2016Dec 8 2016

Publication series

Name2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings

Other

Other59th IEEE Global Communications Conference, GLOBECOM 2016
CountryUnited States
CityWashington
Period12/4/1612/8/16

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

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