Báo cáo hóa học: " Research Article Throughput Maximization under Rate Requirements for the OFDMA Downlink Channel with Limited Feedback" pot

... 2008, Article ID 437921, 14 pages doi:10.1155/2008/437921 Research Article Throughput Maximization under Rate Requirements for the OFDMA Downlink Channel with Limited Feedback Gerhard Wunder, 1 Chan ... use the simulation method given in [17] to generate the erroneous blocks. Clearly, the better the scheduling works the more accu- rate the CQI repor...

Ngày tải lên: 22/06/2014, 19:20

... assumption, the inequality holds, in particular, for all z ∈ Ω. This together with the definition of Q n1 implies that Ω ⊂ Q n1 . Hence Ω ⊂ Q n holds for all n ≥ 1. Thus Ω ⊂ C n ∩ Q n , and therefore the ... apply the hybrid methods to the parallel algorithm for finding a common element of the fixed point set of strict pseudocontractions and the solution set of the prob...

Ngày tải lên: 21/06/2014, 07:20

... 0. Theorem 2.10. Suppose that the conditions of Theorem 2.9 are satisfied, then the solution of scheme 2.3–2.5 converges to the solution of problem 1.1–1.3 with order Oτ 2  h 2  in the ... 1, 2,and3 give the errors in the sense of L 2 -norm and L ∞ -norm of the numerical solutions under various steps of τ and h at t  60 for p  2, 3 and 6. The three tables ver...

Ngày tải lên: 21/06/2014, 11:20

... approach, neither the constant bit energy assumption, nor the Gaussian approximation for the decision variable is considered to compute the performance of the chaos-based communication system. The BER ... necessary to get the bit energy distribution before computing the BER. Figure 2 gives the histogram of the bit energy for the PWL spreading sequence and for a spr...

Ngày tải lên: 21/06/2014, 20:20

... U.Cally ∇ t the nabla derivative of yt at the point t. If T  R then f Δ tf ∇ tf  t.IfT  Z then f Δ tft  1 − ft is the forward difference operator while f ∇ tft − ft − 1 is the ... minimum t 2 , then T k  T − t 2 , otherwise T k  T. Definition 2.3. Fix t ∈ T and let y : T → R. Define y Δ t to be the number if it exists with the property that giv...

Ngày tải lên: 21/06/2014, 20:20

... areas: the foreground and the background. The foreground or ridges area is the component that originates from the contact of a fingertip with the sensor. The noisy area at the borders of the image ... 7 and 8 for the DCT and the DWT domains, respectively. As can be seen, for images form DB2 and DB3, the BER is lower for the proposed technique than that for...

Ngày tải lên: 22/06/2014, 00:20

... in the context of the point-to-point Gaussian channel. In the context of the relay channel we know that the source-relay channel quality also plays a role in the receiver performance. Therefore, ... Since the source-destination channel is assumed to be orthogonal to the relay-destination channel (i.e., the forward channel) , the destination receives two dis- tinc...

Ngày tải lên: 22/06/2014, 00:20

... set for all the three classifiers are highlighted with an ∗ . The best results for each of the five image sets for the 1-NN classifier are depicted in brackets ( ). Then, best results for all the ... 7: Rate C P of correctly classified patterns for five image sets with Stripe’s features. The best rates C P for each image set are shown by an ∗ . The best rates C P f...

Ngày tải lên: 22/06/2014, 01:20

... (e.g., with or without full channel knowledge at the transmitter). We will therefore base the calculation of the achievable data throughput on the mutual information.) Equation (4) assumes that the ... 7 shows the throughput in the same scenario plotted over receive SNR. The throughput for the 1 ×2system here is equal to the throughput of the 2 ×2 Alamouti...

Ngày tải lên: 22/06/2014, 06:20