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|3 10.33948/0584-027-004-007
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| 041 |
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|a eng
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| 044 |
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|b السعودية
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| 100 |
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|9 525069
|a Sharma, Sunil
|e Author
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| 245 |
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|a A Low Complexity Based Spectrum Management Algorithm for Near Far Problem in VDSL Environment
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| 260 |
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|b جامعة الملك سعود
|c 2015
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| 300 |
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|a 460 - 436
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| 336 |
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|a بحوث ومقالات
|b Article
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|b In digital subscriber line (DSL) system, crosstalk created by electromagnetic interference among twisted pairs degrades the system performance. Very high bit rate DSL (VDSL), utilizes higher bandwidth of copper cable for data transmission. During upstream transmission, a ‘Near– Far’ problem occurs in VDSL system. In this problem the far end crosstalk (FEXT) is produced from near end user degrades the data rate achieved at the far end user. The effect of FEXT can be reduced by properly managing power spectral densities (PSD) of transmitters of near and far users. This kind of power allocation is called dynamic spectrum management (DSM). In this paper, a new distributed DSM algorithm is proposed in which power from only those sub channels of near end user are reduced which create interference to far end user. This power back off strategy takes place with the help of power spectral density (PSD) masks at interference creating sub channels of near end user. The simulation results of the proposed algorithm show an improvement in terms of data rate and approaches near to that of optimal spectrum balancing (OSB) algorithm.
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| 653 |
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|a علوم الحاسوب
|a الخوارزميات
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| 692 |
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|b Digital Subscriber Line
|b Discrete Multi Tone
|b Iterative Water Filling
|b Optimal Spectrum Balancing
|b Dynamic Spectrum Management
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| 700 |
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|9 525070
|a Sahu, O. P.
|e Co-Author
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| 773 |
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|c 007
|e Journal of King Saud University (Computer and Information Sciences)
|f Maǧalaẗ ǧamʼaẗ al-malīk Saud : ùlm al-ḥasib wa al-maʼlumat
|l 004
|m مج27, ع4
|o 0584
|s مجلة جامعة الملك سعود - علوم الحاسب والمعلومات
|v 027
|x 1319-1578
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| 856 |
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|u 0584-027-004-007.pdf
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| 930 |
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|d y
|p y
|q n
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| 995 |
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|a science
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| 999 |
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|c 973734
|d 973734
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