báo cáo hóa học:" Adaptive access and rate control of CSMA for energy, rate, and delay optimization" docx

... appeared upon acceptance. Fully formatted PDF and full text (HTML) versions will be made available soon. Adaptive access and rate control of CSMA for energy, rate, and delay optimization EURASIP Journal ... clarify how it controls system performance: (7) where , and are suitable continuous, concave functions, and parameters and control the tradeoff betw...

Ngày tải lên: 21/06/2014, 17:20

... donated to the University of Pittsburgh by Yamaha. Roland Frisch and Andrew Martin designed and fabricated the sen- sor bar and bump sensors for the footrests and rear of the wheelchair. References 1. ... magnitude and velocity of rotation of each rear wheel, and (3) the location of obstacles relative to the wheelchair. Information from all sensors is collected by a m...

Ngày tải lên: 19/06/2014, 10:20

... common element of the fixed points set of a relatively nonexpansive mapping and the set of solutions of an equilibrium problem in a uniformly convex and uniformly smooth Banach space. Theorem 3.1. ... cited. We introduce a new iterative sequence for finding a common element of the set of fixed points of a relatively nonexpansive mapping and the set of solutions of an eq...

Ngày tải lên: 21/06/2014, 05:20

... on a closed and convex subset C of a real Hilbert space H. We consider the problem of finding a common element of fixed point set of these mappings and the solution set of a system of equilibrium ... closed and convex for all n. For n  1, we have C  C 1 which is closed and convex. Assume that C n for some n ≥ 1 is closed and convex; from Lemma 2.2, we have that C n...

Ngày tải lên: 21/06/2014, 07:20

... conservation and decrease of the number of colli- sions, SNAPdMac improves significantly the lifetime of the network and increases both the throughput performance and the sending bit rate/ throughput ... the medium access control (MAC) layer, to limit the waste of energy and also to decrease the number of collisions. Thanks to a noticeable energy conservation and decre...

Ngày tải lên: 21/06/2014, 22:20

... 2007 and 2008, Kim constructed the q-extension of Euler and Genocchi polynomials of higher order and Choi-Anderson-Srivastava have studied the q-extension of Euler and Genocchi numbers of higher ... 1 m  q −1 m q lm q m w m m q . 2.4 L. Jang and T. Kim 9 7 H. Ozden, I. N. Cangul, and Y. Simsek, “Remarks on sum of products of h, q-twisted Euler polynomials a...

Ngày tải lên: 22/06/2014, 03:20

... structural and photoluminescence (PL) properties. The formation chemistry and growth mecha- nism of the ZnO nanorods is proposed. To our best knowledge this is the first report on preparation of ZnO nanorods ... SnO 2 covered glass and soda-lime bare glass substrates mounted on a soldered tin bath. The deposition temperature (T S , temperature at substrate surface) was kept at 520 °C...

Ngày tải lên: 22/06/2014, 18:20

... PCP. The performance of our scheme and that of POD scheme are compared in Ta ble 3. This table compares the two schemes for R = 40 and 50 Kbps for different values of the threshold, n = 1, 10, and N, ... is a form of soft handover, packet drop can still be when the RNC buffer becomes full. That depends on the data rate from SGSN and the size of the buffer at the RNC. When...

Ngày tải lên: 22/06/2014, 19:20

... magnitudes of the responses are accurate and robust to noise, and they enable reliable esti- mation of geometric parameters (location, orientation, size) and provide a strong temporal correspondence for ... poorly defined, noisy, and often unreliable for establishing tempo- ral correspondences. Boundary information is not always re- liable either; body parts often occlude each...

Ngày tải lên: 22/06/2014, 19:20

... properties of a min-max tree and proposes a group of distributed algorithms for both omnidirectional and direc- tional antenna scenarios. Section 4 demonstrates the per- formance of our algorithms ... aware of the existence of all its neighbors and the information w xy be- tween any two neighbor nodes x and y. After the neighbor discovery, any node v will create an entry...

Ngày tải lên: 22/06/2014, 22:20