báo cáo hóa học: " Application driven, AMC-based cross-layer optimization for video service over LTE" doc

... Access Application driven, AMC-based cross-layer optimization for video service over LTE Yongil Kwon * , Doug Young Suh, Sung Chun Kim and Een Kee Hong Abstract In this paper, we propose a cross-layer ... once every day on average.) 3. Application- driven AMC We propose a cross-layer optimization method where AMC is driven by the application layer, i.e., the video...

Ngày tải lên: 21/06/2014, 02:20

... interactive video application. For the video streaming applications, the required rate-distortion charac- teristics can be computed and stored in advance. For the real-time interactive video applications, ... P (2) b ) for a 2-layer SNR scalable H.263+ coder, for quantization parameters (QP I ,QP P ,QP Enh ) = (2,6,3). Many video applications belong to the video streaming c...

Ngày tải lên: 22/06/2014, 19:20

... accelerations produced by muscle forces. During the simulation, accel- erations are produced by forces acting in combination: multiple muscle forces, gravity, and ground reaction forces, for example. To determine ... between simulated and measured motions and ground reaction forces, but other choices for the performance criterion can provide useful information about walking mechanics. Not...

Ngày tải lên: 19/06/2014, 10:20

... consider the performance of reactive protocols and compare the experimental results with simulation results. Moreover, we would like to evaluate the performance of our testbed for outdoor scenarios. Figure ... media n value for four different flows (source node ® destination node). For horizontal topology, we notice that there is a better performance in both delay and jitter metrics, f...

Ngày tải lên: 21/06/2014, 06:20

... für Informationstechnik Berlin; Technical Report 1997. 20. Fornaro J, Harders M, Keel M, Marincek B, Trentz O, Szekely G, Frauenfelder T: Interactive visuo-haptic surgical planning tool for pelvic and ... needed for building the patient-specific models from CT datasets, for virtual fracture reduction and fixa- tion as well as the operative time was measured. In all patients a fo llow-up...

Ngày tải lên: 20/06/2014, 04:20

... more accurate for mean values than for extremes, may contribute to the problem of over- prediction [2]. Specifying other models may lead to better predictions, but will rarely overcome overprediction. Alternatively, ... study explores whether the causes of overprediction of utility values for patients in poor health found in the literature can inform a method to minimize that overpred...

Ngày tải lên: 20/06/2014, 15:20

... exposed plane of the cube-type Co 3 O 4 seemed to be {001}. The villiform-type Co 3 O 4 particles were formed by a nucleus covered with numerous micrometer-sized nanorods. In comparison with ... villiform-type Co 3 O 4 . However, the nanorods of the flower-type Co 3 O 4 had a sharper end, smoother surface, and smaller diameter than those of the villiform- type Co 3 O 4 . Moreover, ... pr...

Ngày tải lên: 20/06/2014, 23:20

... the performance here is similar to the scheme in [7] where a naive AF protocol was considered. A similar trend holds for the performance in the UL in Figure 5. Recall that the decode and forward ... signals to the relays, forming an interference channel; and in the second phase, the relays forward the signals to the base stations, which cooperate to perform joint processing to form a multip...

Ngày tải lên: 21/06/2014, 08:20

... heterogeneity such that for Δ (I) > 15 dB, SIC is clearly superior to OMA. The beneficial effects of the newly proposed strategy can be observed for BORG ∗ K , which performs as well as OMA for small Δ (I) , ... not use formula (7.31) from [3] because it was derived for SIC with residual errors propagated from previous steps. It is clear that, for T ∈{2, , K − 1}, we do not need to...

Ngày tải lên: 21/06/2014, 11:20

... cross- layer optimizations. The centralized PSO for cross-layer optimization in a single node is divided to three categories as shown in Figure 2 for seven layer OSI network model. (1) The optimization ... efficiency and performance of each layer, the PSO technique has been utilized for single layer optimizations [ 3–9]. Recently, PSO has been applied for physical layer optimizati...

Ngày tải lên: 21/06/2014, 17:20