Journal Article10.1049/IP-COM:20030859
Non-iterative bit-loading algorithm for ADSL-type DMT applications
Marie Zwingelstein-Colin,M. Gazalet,Mohamed Gharbi +2 more
- 01 Dec 2003
- Vol. 150, Iss: 6, pp 414-418
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TL;DR: The authors propose a solution to the bit-loading problem for discrete multitone (DMT) modulation on digital subscriber loops (DSL), which involves less complex calculations than the existing algorithms and is slightly more efficient than existing algorithms.
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Abstract: The authors propose a solution to the bit-loading problem for discrete multitone (DMT) modulation on digital subscriber loops (DSL), which involves less complex calculations than the existing algorithms. An optimal loading algorithm is presented and evaluated where the average bit error rate (BER) of the DMT is minimised for given total bit-rate and overall available power constraints. For reasons of simplicity, bit and power allocations are optimised separately. Unlike existing algorithms, the proposed algorithm is non-iterative, and thus requires fewer complex calculations. Computer simulation results, using the classical carrier serving area (CSA) lines in an ADSL environment, show that, in addition to having low computational complexity, the proposed method is slightly more efficient than existing algorithms.
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Performance analysis of QAM in amplify-and-forward cooperative communication networks over Rayleigh fading channels
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Practical Implementation of Bit Loading Schemes for Multiantenna Multiuser Wireless OFDM Systems
D. Bartolome,Ana I. Perez-Neira +1 more
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24
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An efficient bit-loading algorithm for DMT applications
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TL;DR: This letter describes an efficient bit allocation algorithm for digital subscriber loop modems that use discrete multi-tone technology that computes the optimum bit allocation profile within all constraints and requires fewer computations than the conventional "water-filling" approach.
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