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A hybrid time divisioning scheme for power allocation in DMT-based DSL systems | IEEE Journals & Magazine | IEEE Xplore

A hybrid time divisioning scheme for power allocation in DMT-based DSL systems


Abstract:

We propose an iterative waterfilling based multiuser Hybrid Time Divisioning (HTD) scheme for power allocation in DMT based DSL systems. The problem of finding the (user,...Show More

Abstract:

We propose an iterative waterfilling based multiuser Hybrid Time Divisioning (HTD) scheme for power allocation in DMT based DSL systems. The problem of finding the (user,subchannel) pairs which should transmit alone and the pairs which should transmit along with other users, so as to result in the maximum aggregate data rate achievable using time divisioning, has been considered. The proposed scheme Is a low complexity, sub-optimal solution to this problem. Results show that the HTD scheme can achieve better data rates than Iterative Waterfilling a well as Multiuser Discrete Bit Loading scheme (for high coupling coefficient values) with comparatively lesser complexity
Published in: IEEE Communications Letters ( Volume: 10, Issue: 2, February 2006)
Page(s): 73 - 75
Date of Publication: 06 February 2006

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