báo cáo hóa học: " On the Lambert-W function for constrained resource allocation in cooperative networks" docx

... power allocation in relay networks In this section, we show how the Lambert-W Function can be used for constrained resource allocation in relay networks. 4.1 Problem formulation Consider the relay network ... hierarchical resource allocation, where the MR only performs a rough resource allocation with limited information (the average channel gain of all outg...

Ngày tải lên: 21/06/2014, 02:20

... optimization of one prob- lem yields the optimal solution for another one. Therefore, without loss of generality we concentrate on the margin- maximization problem in this paper. For last years, the ... implementation is noniterative. In this paper, we study combinations of the OSSA with different initial subcarrier allocation schemes. We show that the algorithm given in...

Ngày tải lên: 22/06/2014, 19:20

... Rassias, JM: On the stability of the Euler-Lagrange functional equation. Chin J Math. 20, 185–190 (1992) 16. Rassias, JM: On the stability of the non-linear Euler-Lagrange functional equation in real ... functional equation (1.2), which is called a cubic functional equation and every solution of the cubic functional equation is said to be a cubic mapping. In [32], Park and B...

Ngày tải lên: 21/06/2014, 01:20

... resulting transmission rate for each user as a function of the time ar- rangement and modulation scheme (BPSK or QPSK). The transmission error rate on the other hand depends on the transmission ... per second, size (in terms of bytes), and maximum delay of each frame (or pic- ture). Other important information for the optimizer is the distortion-rate function (encodin...

Ngày tải lên: 22/06/2014, 22:20

... modeling Introduction The enormous accumulation of experimental data on the activities of the living cell has triggered an increasing interest in uncovering the biological networks behind the observed ... division in polynomial rings in more than one variable is not unique and depends on the way the monomials are ordered. In contrast, this is not an issue in k [x]...

Ngày tải lên: 21/06/2014, 03:20

... model. The remainder of this paper is organized as follows. Section 2 describes the system model in consideration. In Section 3, the proposed OCI reducing scheme is described. Then, the proposed resource ... reduction of the last portion of the OFDM symbol corresponding to the CP does not affect the reception performance. However, it can be seen that the average OCI pow...

Ngày tải lên: 22/06/2014, 19:20

... often find the training uninteresting, tiring and lacking meaning for them. Robotic or Virtual Reality technology may overcome these barriers by making phys- ical rehabilitation interesting, challenging ... plasticity and recovery of function. However, we are only beginning to under- stand the complex interactions affecting recovery from acute brain injury (for review see [8]). The...

Ngày tải lên: 19/06/2014, 08:20

... classification system for ENG signals. Training is performed on the first and testing on the sec- ond half of the data. (A) Training procedure consisting of: Filtering (in order to eliminate the EMG ... B illustrates the steps performed during the test phase: pre-processing, feature extraction (both the same as during the training), identification of the stimulus us...

Ngày tải lên: 19/06/2014, 08:20

... localization is, would therefore attenuate brain capacity for informa- tion processing and, as a consequence, information intake. One way to diminish information intake and processing at the cellular ... neurotransmission is indispensable for information intake and processing within the central nervous system Glutamate neurotransmission is crucial in information intake and informat...

Ngày tải lên: 19/06/2014, 22:20

... concentrations of melanin in dark-skinned individuals shield the keratinocytes from the ultraviolet radiation required to generate vitamin D in skin [38]. In addition, the production of vitamin ... the percentage is higher in the winter, in the aged, in the obese, in the sun- deprived, in the dark-skinned, and in more poleward pop- ulations [40,41]. However...

Ngày tải lên: 20/06/2014, 01:20