Báo cáo hóa học: " Research Article Fair Adaptive Bandwidth and Subchannel Allocation in the WiMAX Uplink" pptx

... in order to solve it. On the contrary, the former is distributed among the BS and the SSs in order to be standard-compliant (the BS allocates aggregate bandwidth to the SSs and these decide the ... subset of the variables without looking at the others. In this work, we suggest (for the particular PMP WiMAX case) the derivation of the joint optimal rate an...

Ngày tải lên: 21/06/2014, 22:20

... to the other nodes in the set (sinks); (2) all sink nodes are within the transmission range of the source; (3) each of the sink nodes has all packets in U but one (they may have received them ... node combines together the packets in U  (see Section 4 )and broadcasts the resulting packet to sink nodes of the network group. In this paper, we used the DaVinci codes,...

Ngày tải lên: 21/06/2014, 11:20

... calculated once at the beginning of the packet and held constant for the duration of the packet. ΔH n requires the pseudoinverse of the (p × 1) vector s, which can be precalculated and stored, and then multiplying ... approximate the mobile wireless channel. The main parameters in designing a channel model are the heights of transmit and receive antennas, the pos...

Ngày tải lên: 21/06/2014, 23:20

... transmit the highest protection level, temporal subband index, component index, spatial subband index, and block index in order to properly deinterleave the data. When inter- leaving is used, the interleaving ... curve as in Figure 3) and the x-axis is the bitrate (including source data bits and FEC protection bits). The dashed line is the original subband data without...

Ngày tải lên: 22/06/2014, 22:20

... remaining of the paper. Each sensor node i, including the base station, maintains the following variables. (i) Father i : the father of the sensor in the final spanning tree. The base station is the ... acute and must be addressed adequately and in accordance with the binding characteristics of WSNs. Because of their constraints and their deployment in unattended...

Ngày tải lên: 21/06/2014, 11:20

... nonexpansive in the intermediate sense, then T has a fixed point. It is worth mentioning that the class of mappings which are asymptotically nonexpansive in the intermediate sense contains properly the class ... Yanes and Xu 16, we can obtain Step 7. This completes the proof. Remark 2.3. The results of Theorem 2.2 are more general which includes the corresponding results...

Ngày tải lên: 21/06/2014, 18:20

... phenomena, for instance, in the theory of quasiregular and quasiconformal mappings 1–3, in the generalized reaction-diffusion theory 4, in the turbulent flow of a gas in porous medium and in the non-Newtonian fluid ... see, e.g., 8–20 and references therein for more general nonlinearities in the terms f and g which include the cases considered by them. Th...

Ngày tải lên: 21/06/2014, 20:20

... to subbands based on their energies) of L and H subbands in terms of average PSNR in the range of 1 ∼ 2dBand0.2 ∼ 0.6 dB comparing with the exponential and power models. Figures 7 and 8 show the ... summarizes the scaling factors in the lifting modes. Figure 4 illustrates the reference image views used in disparity compensation with DCWL Haar and 5/3 types. At the...

Ngày tải lên: 21/06/2014, 20:20

... camera configuration. Preprocessing the depth map allows to reduce the number and the size of holes created by the warping [16]. Nevertheless, some holes can remain, requiring a last step of hole filling, consisting in an interpolation ... this end, for each GOP the bits are allocated taking into account the ratio of the variances of the pictures in the texture video an...

Ngày tải lên: 21/06/2014, 22:20

... d 1 and d 2 , where the RS and MS are located in perpendicular streets. Furthermore, d 1 is the distance from the RS to the midpoint of the crossing and d 2 is the distance from the midpoint of the ... Θ n denotes the angle relative to the normal of the wall under which the signal is entering the building at the points closest to the MS, and d n,i denot...

Ngày tải lên: 21/06/2014, 23:20