Báo cáo hóa học: " Call admission control with heterogeneous mobile stations in cellular/WLAN interworking systems" pot
... Lai, M Baker, Mitigating routing misbehavior in mobile ad hoc networks, in Proceedings of the Sixth annual ACM/IEEE International Conference on Mobile Computing and Networking, 255–265 (2000) 16. ... against them. Often, different mechanisms are needed to defend the underly- ing network against the insiders or outsiders. In this article, we focus on defending against insiders by com...
Ngày tải lên: 21/06/2014, 00:20
... article as: Lim et al.: Call admission control with heterogeneous mobile stations in cellular/WLAN interworking systems. EURASIP Journal on Wireless Communications and Networking 2011 2011:91. Submit ... Networking 2011, 2011:91 http://jwcn.eurasipjournals.com/content/2011/1/91 Page 8 of 17 RESEARCH Open Access Call admission control with heterogeneous mobile...
Ngày tải lên: 21/06/2014, 00:20
... technique, training sequences that are also called as pilots are i nserted into all of sub- carriers of OFDM symbols with specific period or inserted into each OFDM symbol [4]. Compared with blind technique, ... available online 7 High visibility within the fi eld 7 Retaining the copyright to your article Submit your next manuscript at 7 springeropen.com Seyman and Taşpinar EURASIP Journa...
Ngày tải lên: 21/06/2014, 03:20
Báo cáo toán học: " Reconfigurable parasitic antennas for compact mobile terminals in multiuser wireless systems" pot
... using ESPAR at the receiving terminal are examined both in opportunistic beamforming and in MIMO broadcast channel MU systems, optimizing correspondingly the SNR or the SINR of the forward link. 1 ... overhead is evident in the system performance. 3.3 Receiver beamforming in Rician channels In order to evaluate the potential gains of using ESPAR antennas on mobile terminals in m...
Ngày tải lên: 20/06/2014, 20:20
báo cáo hóa học: " Satisfaction of inpatients with acute coronary syndrome in Bulgaria" docx
... members living together and the severity of the disease at admis- sion. Our findings suggest that Bulgarian male inpatients and individuals living in big families tend to be more sat- isfied with hospital ... education and discharge information, and 10) care after discharge. Interview setting All patients were interviewed by trained interviewers in a structured face-to-face interview co...
Ngày tải lên: 18/06/2014, 19:20
báo cáo hóa học:" Charcot foot reconstruction with combined internal and external fixation: case report" pot
... thorough removal of opposing articular surfaces, the joints were manipulated into a corrected position with simulated weight bearing and were temporarily fixated with 2.8 mm Steinmann pins. Intraoperative ... predi- cated on reducing deformity, stabilizing adjacent joints, and removing osseous prominences. The authors describe their preferred surgical management of unstable, progressive a...
Ngày tải lên: 20/06/2014, 04:20
Báo cáo hóa học: " Stochastic Power Control for Time-Varying Long-Term Fading Wireless Networks" potx
... using linear pro- gramming techniques and stochastic control with integral or exponential-of-integral constraints are introduced in this section. Moreover, an alternative stochastic power control formulation ... along the lines of [15– 17]. The latter helps in allowing autonomous execution at the node or link level, requiring minimal usage of network communication resources for con...
Ngày tải lên: 22/06/2014, 23:20
Báo cáo hóa học: " Optimal STBC Precoding with Channel Covariance Feedback for Minimum Error Probability" pot
... the capacity-achieving viewpoint. Keywords and phrases: MIMO, space-time block coding, beamforming, linear precoding. 1. INTRODUCTION In wireless communications, the adverse effects of channel fading can ... sys- tems. Assuming uncorrelated fading at the receiver as in [7], we show that this solution is exact in MIMO systems as well. This problem setting ties in with recent work on d...
Ngày tải lên: 23/06/2014, 01:20
báo cáo hóa học:" Serum heavy metals and hemoglobin related compounds in Saudi Arabia firefighters" pot
... eighty-four carboxyhemoglobin readings were collected during train- ing exercises. The mean and median carboxyhemoglobin levels were 1%. The maximum value in a firefighter wear- ing self-contained breathing apparatus ... firemen. A consistent increase in mean COHb levels after exposure to smoke was seen in both non-smoking and smoking men, but the mean increase in these two groups was...
Ngày tải lên: 20/06/2014, 00:20