کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
466723 | 697873 | 2014 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Green and fast DSL via joint processing of multiple lines and time–frequency packed modulation Green and fast DSL via joint processing of multiple lines and time–frequency packed modulation](/preview/png/466723.png)
In this paper, strategies to enhance the performance, in terms of available data-rate per user, energy efficiency, and spectral efficiency, of current digital subscriber lines (DSL) are proposed. In particular, a system wherein a group of copper wires is jointly processed at both ends of the communication link is considered. For such a scenario, a resource allocation scheme aimed at energy efficiency maximization is proposed, and, moreover, time–frequency packed modulation schemes are investigated for increased spectral efficiency. Results show that a joint processing of even a limited number of wires at both ends of the communication links brings remarkable performance improvements with respect to the case of individual point-to-point DSL connections; moreover, the considered solution does represent a viable means to increase, in the short term, the data-rate of the wired access network, without an intensive (and expensive) deployment of optical links.
Journal: Physical Communication - Volume 13, Part C, December 2014, Pages 99–108