a two-step resource allocation algorithm in multicarrier based cognitive radio systems

... proposed PI -Algorithm which is an iterative power allocation algorithm aims to maximize the downlink total capacity of multicarrier based CR systems under both total power and maximum allowable interference ... Qin and C. Leung, “Fair adaptive resource allocation for multiuser OFDM cognitive radio systems, ” in Second International Conference on Communications and Netwo...

Ngày tải lên: 08/07/2014, 17:03

... Leung, “Fair adaptive resource allocation for multiuser OFDM cognitive radio systems, ” in Proceedings of the 2nd International Conference on Communications and Networking in China (ChinaCom ’07), ... D. Logan, and S. Patek, Nonlinear Programming, Athena Scientific, 1995. [24] D. Huang, Z. Shen, C. Miao, and C. Leung, “Fitness landscape analysis for resource allocation in mu...

Ngày tải lên: 21/06/2014, 11:20

... 2011:46 http://jwcn.eurasipjournals.com/content/2011/1/46 Page 12 of 13 RESEARC H Open Access An OFDMA resource allocation algorithm based on coalitional games Farshad Shams 1 , Giacomo Bacci 2* and Marco Luise 2 Abstract This ... dividing a frequency-selective broadband channel into a multitude of orthogonal narrowband flat-fading subchannels. An intelligent and scalable joint po...

Ngày tải lên: 21/06/2014, 01:20

... between layers, and therefore, has attracted a lot of attentions in recent years. Cross-layer optimiza- tion methods can be categorized into application adapta- tion, application-centric adaptation, ... that optimal time slot for optimal resource allocation to be assigned for sensing activity and data transmission at the MAC layer. The impact of sensing activity is minimal on the mult...

Ngày tải lên: 21/06/2014, 11:20

... base address, and control unit waits for initialization of BRAM data for search pass addresses, BRAM initialization complete S5: PUs and SCs compute SADs for search pass addresses, SADs S6: obtain min SAD ... state machine chart for the modified SUMH algorithm. the addresses of the candidate blocks and a flag indicating that BRAM initialization is complete. In state S5, the processing uni...

Ngày tải lên: 21/06/2014, 20:20

... suboptimum allocation rule robust to the variation of these parameters. The WH codes have a property that each pair of adjacent chips with an odd index and an even index has opposite signs and the same ... Article Other-Cell Inter ference Reducing Resource Allocation in OFDM -Based Asynchronous Cellular Systems Jin-Woo Lee, June Moon, and Yong-Hwan Lee School of Electrical Engine...

Ngày tải lên: 22/06/2014, 19:20

... market -based resource allocation mechanisms, but we also see a num- ber of challenges that may hinder their applicability to systems. While there has been a general call for bet- ter resource allocation, ... misestimating resource need, since these bids are made in advance of when the resources will actually be available. In order to match enough buyers with sellers, curre...

Ngày tải lên: 07/03/2014, 17:20

... Corston-Oliver, Michael Gamon, and Chris Brockett. 2001. A machine learning approach to the automatic evaluation of machine translation. In Pro- ceedings of the 39th Annual Meeting of the Associa- tion ... Training a Sentence-Level Machine Translation Confidence Measure, In Pro- ceedings of LREC 2004, pages 825-828. Grazia Russo-Lassner, Jimmy Lin, and Philip Resnik. 2005. A Pa...

Ngày tải lên: 31/03/2014, 00:20

... transparent to the end-user terminals. In this case, the approach of adding repeaters in an autonomous manner and in a multihop structure becomes a scalable capacity enhancing technique for a ... spectrum alleviates this bottleneck problem and results in a much larger capacity per BS. The out-of-band approach also has the attractive feature that all terminals can be legacy ter...

Ngày tải lên: 21/06/2014, 22:20

... (a) and (b). At Step (c), INSIDE + = {A inside B, D inside C} and CONTAINS + = {B contains A, C contains D}. Then M in ∗ M above2 = {A above C}, since A above C :: A inside B, B above C. M above2 ∗ ... {B above D, A above D}, since B above D :: B above C, C contains D, A above D :: A above C, C contains D. And M in ∗ M above2 ∗ M co = {A above D}, since SPATIAL RELATIONSHIP...

Ngày tải lên: 07/03/2014, 14:20