radio resource management for green wireless networks

... effectively improve radio resource utility and system performance of the whole network. Keywords: radio resource management, public femtocell networks, resource utility, system performance 1. Introduction With ... 16 3. Radio resource management schemes 3.1. Long-term resource management: spectrum allocation between macrocell and public femtocells Spectrum is one of the most important resources for wireless ... K = 12). 4.3. Fast resource management In addition to the simulation results of the medium- term resource management, we further evalua te the per- formance of fast resource management. We implement coordinated...

Ngày tải lên: 20/06/2014, 22:20

... Wireless Communications and Networking Volume 2011, Article ID 921623, 15 pages doi:10.1155/2011/921623 Research Article Interference-Aware Radio Resource Management for Local Area Wireless Networks Pekka ... in interference-limited wireless networks, ” Proceedings of the IEEE, vol. 95, no. 12, pp. 2393–2409, 2007. [11] J. Huang, R. A. Berry, and M. L. Honig, “Distributed inter- ference compensation for wireless networks, ” ... for resource allocation in shared computer systems,” DEC Research Report TR-301, September 1984. [2] B. Radunovi ´ c and J. Y. L. Boudec, “Rate performance objec- tives of multihop wireless networks, ”...

Ngày tải lên: 21/06/2014, 05:20

Ngày tải lên: 22/06/2014, 22:20

... these profiles, a BS implements a RRA (radio resource agent), the difference being where the RRC (radio resource controller) is located. A RRA collects information on radio resources and supervises the ... users share radio resources. This sharing can be enabled through a simple mechanism where cell-edge users use radio resources first and the cell-interior users use the residual radio resources. This ... of PF scheduling. 8. Conclusion We have proposed a new RRM framework for wide- area wireless data networks that manages radio resources of cell-interior and cell-edge users separately. We believe that...

Ngày tải lên: 21/06/2014, 11:20

... Bounds and Optimal Resource Allocation In the remainder of the paper, we will consider optimal resource allocation on the bounds obtained for the MBRC, that is, for hybrid wireless networks where ... Channel: A Building Block for Hybrid Wireless Networks Kyounghwan Lee, 1 Aylin Yener, 2 and Xiang He 2 1 Reverb Networks, 20099 Ashbrook Place, Suite 105, Ashburn, VA 20147, USA 2 Wireless Communications ... there are three cases for the max- min optimization (A.7) as given in Proposition 2. B. Optimal Resource Allocation Proof. We provide the proof for optimal resource allocation for (3, 2)-MBRC. To...

Ngày tải lên: 21/06/2014, 18:20

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 22/06/2014, 22:20

... “Robust statistical methods for securing wireless localization in sensor networks, ” in Proceedings of the 4th International Symposium on Informa- tion Processing in Sensor Networks, pp. 91–98, April ... Localization Scheme for Indoor Wireless Networks A. Bahillo, 1 S. Mazuelas, 1 R. M. Lorenzo, 2 P. Fe r n ´ andez, 2 J. Prieto, 2 R. J. Dur ´ an, 2 and E. J. Abril 2 1 CEDETEL (Center for the Development ... concluding that, for short-range networks, the hybrid schemes offer improved accuracy with respect to conventional TOA and TDOA schemes. In [9] an algorithm of neural networks is implemented for the hybrid...

Ngày tải lên: 21/06/2014, 18:20

... resource required to achieve  r th . Fortunately again there are several solutions available for different scenarios. For example, in [20]agenericprocedure,CLARA,waspresentedforcross- layer resource ... all users compete for resources according to the criteria that the Highest Quality Improvement the Highest Possibility Resources (HQIHPR) [2]. Using KSBS, users compete for resources to make ... Ratios (PSNRs) in rate allocation for collaborative video transmissions [1]. Optimal resource allocation for multiuser wireless transmissions is studiedin[2] from an information theoretic perspective,...

Ngày tải lên: 21/06/2014, 22:20

Ngày tải lên: 22/06/2014, 20:20

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 23/06/2014, 01:20

Ngày tải lên: 14/11/2014, 06:51

... radio channel condition, i.e., the link is ii Radio Link Performance of Third Generation (3G) Technologies For Wireless Networks Gustavo Nader (Abstract) Third generation wireless ... illustrate the Radio Block structure for both cases, respectively [3GP00a]. data BCSUSF Radio Block rate 1/2 convolutional coding puncturing 456 bits Figure 3-1 - Radio Block structure for CS-1 ... the Radio Block is coded independently from the data, in order to ensure strong header protection. Three header formats are used: one for MCS-7, MCS-8 and ix correction for CS-1; CRC only for...

Ngày tải lên: 26/04/2013, 11:15

... http://www.isi.edu/nsnam/ns/ doi:10.1186/1687-1499-2011-107 Cite this article as: Lin et al.: BOB-RED queue management for IEEE 802.15.4 wireless sensor networks. EURASIP Journal on Wireless Communications and Networking 2011 2011:107. Submit ... 802.15.4 wireless sensor networks Mu-Sheng Lin 1* , Jenq-Shiou Leu 1 , Wen-Chi Yu 1 , Min-Chieh Yu 1 and Jean-Lien C Wu 2 Abstract Multimedia services over resource constrained wireless sensor networks (WSNs) ... sensor networks (WSNs) face a performance bottleneck issue from the gateway node to the sink node. Therefore, the queue management at the gateway node is crucial for diversified messages conveyed...

Ngày tải lên: 20/06/2014, 22:20

... constrained wireless sensor networks (WSNs) face a performance bottleneck issue from the gateway node to the sink node. Therefore, the queue management at the gateway node is crucial for diversified ... Access BOB-RED queue management for IEEE 802.15.4 wireless sensor networks Mu-Sheng Lin 1* , Jenq-Shiou Leu 1 , Wen-Chi Yu 1 , Min-Chieh Yu 1 and Jean-Lien C Wu 2 Abstract Multimedia services over resource ... http://www.isi.edu/nsnam/ns/ doi:10.1186/1687-1499-2011-107 Cite this article as: Lin et al.: BOB-RED queue management for IEEE 802.15.4 wireless sensor networks. EURASIP Journal on Wireless Communications and Networking 2011 2011:107. Submit...

Ngày tải lên: 21/06/2014, 00:20

... Thus, for uplink transmission, the BS allocates the radio resource via each mobile station basis, and the resource allocation for connections within the same MS is the responsibility of the MS. For ... condition of each connection. After the arrangement of radio resources in accordance with these priorities, the information of resource arrangements for connections in each frame is broadcasted by the ... performance conclusions. Furthermore, it was shown that the MAP messages occupy up to 20-60% of downlink resources [12]. Therefore, the mapping of traf- fic into bursts is a crucial issue for resource...

Ngày tải lên: 21/06/2014, 02:20

... protocols for sensor networks, ” Wireless Networks, vol. 8, no. 5, pp. 521–534, 2002. [22] X. Zhang, J. He, and Q. Wei, “An energy-efficient dynamic key management scheme in wireless sensor networks, ” ... requirement for wireless sensor networks while security must also be ensured for mission-critical applications. In this paper, we present an energy-efficient distributed deterministic key management ... Varshney, J. Katz, and A. Khalili, “A pairwise key predistribution scheme for wireless sensor networks, ” ACM Transactions on Information and System Security, vol. 8, no. 2, pp. 228–258, 2005. [12]...

Ngày tải lên: 21/06/2014, 11:20

... needed for the lower-resolution image to get back to the original size. The other issue is the complexity for coordination for resource allocation. The optimization in (16)isperformed, and resource ... the resources and there are autonomous users that request resources in the network. Very recently, researchers start to explore the auction-theory-based solu- tions for resource allocation for ... destination, clearly to balance the resource allocation among source and relay nodes, and the resources used by the relays for each source are very critical for the overall network performance. We propose a...

Ngày tải lên: 21/06/2014, 20:20