منابع مشابه
On the Optimality of Iterative Waterfilling
The iterative waterfilling algorithm was recently presented and demonstrates the large gains that can be achieved through the use of Dynamic Spectrum Management (DSM). In this contribution we evaluate the optimality of iterative waterfilling in various scenarios through a comparison with the Optimal Spectrum Management (OSM) algorithm. OSM determines the theoretically optimal transmit spectra f...
متن کاملSelective Iterative Waterfilling for Digital Subscriber Lines
This paper presents a high-performance, low-complexity, quasi-distributed dynamic spectrum management (DSM) algorithm suitable for DSL systems. We analytically demonstrate that the rate degradation of the distributed iterative waterfilling (IW) algorithm in near-far scenarios is caused by the insufficient utilization of all available frequency and power resources due to its nature of noncoopera...
متن کاملIterative waterfilling algorithm with sub-channel selection for the coexistence of multiple cognitive tactical radio networks
In 2002, the work of Yu et al. has shown that the distributed power control problem in a frequency selective interference channel can be modeled as a non-cooperative game and can be solved efficiently by the iterative waterfilling algorithm (IWFA). The convergence of the algorithm has been initially established for two users and later extended to any number of users in a digital subscriber line...
متن کاملResource Allocation for Wireless Multicast MIMO-OFDM Systems using Waterfilling Algorithm
Multiple antenna Orthogonal Frequency Division Multiple Access (OFDMA) is a promising technique for the high downlink capacity in the next generation wireless systems, in which adaptive resource allocation would be an important research issue that can significantly improve the performance with guaranteed Quality of Service (QoS) for users. . In this paper we look into the performance of such co...
متن کاملAnalysis of Iterative Waterfilling Algorithm for Multiuser Power Control in Digital Subscriber Lines
In modern digital subscriber line (DSL) systems where multiple users must coexist in the same frequency band, multiuser power control is an effective technique for reducing crosstalk interference and improving total system throughput. The popular distributed iterative waterfilling algorithm (IWFA) for DSL power control lets each user locally measure the total noise plus interference powers in a...
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ژورنال
عنوان ژورنال: IEEE Transactions on Signal Processing
سال: 2009
ISSN: 1053-587X,1941-0476
DOI: 10.1109/tsp.2009.2013894