Results 1 - 10 of 1,610,448

Greener copper with dynamic spectrum management

by John Cioffi, Sumanth Jagannathan, W. Lee, H. Zou, A. Chowdhery, W. Rhee, G. Ginis, P. Silverman - AccessNets’08, Las Vegas, NV , 2008
"... Abstract. This paper investigates the benefits of Dynamic Spectrum Management (DSM) in terms of reducing the power consumption and improving the data rates in digital-subscriber-line (DSL) networks. The proposed techniques at the three different DSM levels simultaneously also provide a significant i ..."
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Abstract. This paper investigates the benefits of Dynamic Spectrum Management (DSM) in terms of reducing the power consumption and improving the data rates in digital-subscriber-line (DSL) networks. The proposed techniques at the three different DSM levels simultaneously also provide a significant

Dynamic spectrum management for standardized VDSL

by Driton Statovci, Tomas Nordström, Rickard Nilsson - in IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2007 , 2007
"... Dynamic spectrum management (DSM) improves the capacity utilization of twisted-pair cables by adapting the transmit power spectral density (PSD) of modems to the actual noise environment and channel conditions. Earlier proposed DSM algorithms do not take into account the standardized very high speed ..."
Abstract - Cited by 8 (5 self) - Add to MetaCart
Dynamic spectrum management (DSM) improves the capacity utilization of twisted-pair cables by adapting the transmit power spectral density (PSD) of modems to the actual noise environment and channel conditions. Earlier proposed DSM algorithms do not take into account the standardized very high

1 Dynamic Spectrum Management for Green

by unknown authors
"... Abstract—Dynamic spectrum management (DSM) has been recognized as a key technology for tackling multi-user crosstalk interference in DSL broadband access. Up to now, DSM design has mainly been focusing on maximization of data rates. However, recently, reducing the total power has become a main targe ..."
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Abstract—Dynamic spectrum management (DSM) has been recognized as a key technology for tackling multi-user crosstalk interference in DSL broadband access. Up to now, DSM design has mainly been focusing on maximization of data rates. However, recently, reducing the total power has become a main

1 Dynamic Spectrum Management with the Competitive Market Model

by Yao Xie, Benjamin Armbruster, Yinyu Ye
"... Abstract — [1], [2] have shown that dynamic spectrum management (DSM) using the market competitive equilibrium (CE), which sets a price for transmission power on each channel, leads to better system performance in terms of the total data transmission rate (by reducing cross talk), than using the Nas ..."
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Abstract — [1], [2] have shown that dynamic spectrum management (DSM) using the market competitive equilibrium (CE), which sets a price for transmission power on each channel, leads to better system performance in terms of the total data transmission rate (by reducing cross talk), than using

WHITE PAPER Dynamic Spectrum Management

by unknown authors , 2012
"... Spectrum harvesting through the allocation and aggregation of contiguous and noncontiguous licensed, unlicensed, and TV white ..."
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Spectrum harvesting through the allocation and aggregation of contiguous and noncontiguous licensed, unlicensed, and TV white

Over-Booking Approach for Dynamic Spectrum Management

by Jing Li, Qinghai Yang, Lajos Hanzo, Kyung Sup Kwak
"... Abstract—An over-booking based dynamic spectrum manage-ment (DSM) scheme is conceived for improving the attainable spectral efficiency. All secondary users (SU) will be categorized into different classes and they borrow spectral resources from the primary users (PU) before data transmission. Under t ..."
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Abstract—An over-booking based dynamic spectrum manage-ment (DSM) scheme is conceived for improving the attainable spectral efficiency. All secondary users (SU) will be categorized into different classes and they borrow spectral resources from the primary users (PU) before data transmission. Under

Dynamic spectrum management for next-generation DSL systems

by Kee Bong Song, Seong Taek Chung, George Ginis, Texas Instruments, John M. Cioffi - IEEE Communications Magazine , 2002
"... The performance of DSL systems is severely constrained by crosstalk due to the electromagnetic coupling among the multiple twisted pairs making up a phone cable. In order to reduce performance loss arising from crosstalk, DSL systems are currently designed under the assumption of worst-case crosstal ..."
Abstract - Cited by 53 (2 self) - Add to MetaCart
-case crosstalk scenarios leading to overly conservative DSL deployments. This article presents a new paradigm for DSL system design, which takes into account the multi-user aspects of the DSL transmission environment. Dynamic spectrum management (DSM) departs from the current design philosophy by enabling

Dynamic Spectrum Management for Energy-Efficient Transmission in DSL

by Martin Wolkerstorfer, Driton Statovci, Tomas Nordström
"... Abstract—Dynamic spectrum management (DSM) is an important technique for mitigating crosstalk noise in multi-user digital subscriber line (DSL) environments. Until now, most of the proposed algorithms for DSM have been designed solely for the purpose of bitrate maximization. These algorithms assume ..."
Abstract - Cited by 8 (2 self) - Add to MetaCart
Abstract—Dynamic spectrum management (DSM) is an important technique for mitigating crosstalk noise in multi-user digital subscriber line (DSL) environments. Until now, most of the proposed algorithms for DSM have been designed solely for the purpose of bitrate maximization. These algorithms assume

Auction-driven Market Mechanisms for Dynamic Spectrum Management

by George Iosifidis, Iordanis Koutsopoulos
"... for dynamic spectrum management There is nowadays unanimous agreement that spectrum should be allocated in a dynamic fashion so as to match the stochastic supply and demand by responding to spatiotemporal variations of spectrum availability and request. The imminent liberalization of the spectrum ma ..."
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for dynamic spectrum management There is nowadays unanimous agreement that spectrum should be allocated in a dynamic fashion so as to match the stochastic supply and demand by responding to spatiotemporal variations of spectrum availability and request. The imminent liberalization of the spectrum

Physical interference driven dynamic spectrum management

by Lei Yang, Lili Cao, Heather Zheng - IN PROC. OF THE THIRD IEEE SYMPOSIUM ON NEW FRONTIERS IN DYNAMIC SPECTRUM ACCESS NETWORKS (DYSPAN 2008) , 2008
"... Abstract — Dynamic spectrum management can drastically improve the performance of wireless networks struggling under increasing user demands. However, performing efficient spectrum allocation is a complex and difficult process. Current proposals make the problem tractable by simplifying interference ..."
Abstract - Cited by 17 (5 self) - Add to MetaCart
Abstract — Dynamic spectrum management can drastically improve the performance of wireless networks struggling under increasing user demands. However, performing efficient spectrum allocation is a complex and difficult process. Current proposals make the problem tractable by simplifying
Results 1 - 10 of 1,610,448