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A new computationally efficient discrete bit-loading algorithm for DMT applications

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2 Author(s)
Papandreou, N. ; Dept. of Electr. Eng. & Comput. Technol., Univ. of Patras, Rio-Patras, Greece ; Antonakopoulos, T.

This letter presents a new bit-loading algorithm for discrete multitone systems that converges faster to the same bit allocation as the optimal discrete bit-filling and bit-removal methods. The algorithm exploits the differences between the subchannel gain-to-noise ratios in order to determine an initial bit allocation and then performs a multiple-bits loading procedure for achieving the requested target rate. Numerical results using asymmetric digital subscriber test loops demonstrate the computational efficiency of the proposed algorithm.

Published in:

Communications, IEEE Transactions on  (Volume:53 ,  Issue: 5 )

Date of Publication:

May 2005

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