Báo cáo hóa học: " Power allocation, bit loading and sub-carrier bandwidth sizing for OFDM-based cognitive radio" pot

... corresponding sub-carrier bandwidth B opt is obtained using (33). VII. Sub-carrier power allocation, bandwidth sizing and bit loading After having addressed the power allocation, bit loading and bandwidth ... N sopt =N s , and the c orresponding sub-carrier band- width B opt is obtained using (33). XII. Sub-carrier power allocation, bandwidth sizin...

Ngày tải lên: 21/06/2014, 00:20

... network, we propose several bit and power allocation schemes aiming at minimizing the total transmission power under a target rate constraint. First, an optimal and efficient bit loading algorithm is ... reduced by performing subchannel permutation and bit loading separately. 5. SIMULATION RESULTS In this section, we present simulation results to compare the performance of t...

Ngày tải lên: 22/06/2014, 19:20

... algo- rithms perform subcarrier, spreading-code, bit and energy allocation, and are shown to improve the data rate over non- spread loaded systems for fixed error-rate performance. The fourth and fifth ... processing techniques for PLC, carried out in tandem with the refine- ment and standardization of channel and radiation models, is called for. We hope that this special issu...

Ngày tải lên: 22/06/2014, 20:20

... epigenetic intervention in CM, and different inhibitors of their activ- ity have been so far described and utilized in the clinical setting. DNMT inhibitors (for review see [71]) Nucleoside inhibitors are represented ... DATE ADMINISTRATION OF AN INHIBITOR OF HDAC AND AN HMT INHIBITOR WO2009126537 15/10/2009 USE OF METHYLATION STATUS OF MINT LOCI AND TUMOR-RELATED GENES AS A MARKER...

Ngày tải lên: 18/06/2014, 16:20

... recall and delayed recall of a ten-word list. We defined significant cognitive impairment as performance at or below 1.5 standard deviations below the norm for the individual's age group and ... wellbeing. Chance is an unlikely explanation for the adjusted associ- ation between paralysis and low wellbeing, and for the adjusted association between disability and low well...

Ngày tải lên: 18/06/2014, 19:20

... 180N for pin Displacement at 360N for plate Displacement forat 360N pin Displacement at 540N for plate Displacement at 540N for pin Displacement at 720N for plate Displacement at 720N for pin 1 ... mm. Clavicle Pair Load at 5 mm for plate (N) Load at 5 mm for pin (N) Load at 7.5 mm for plate (N) Load at 7.5 mm for pin (N) Load at 10 mm for plate (N) Load at 10 mm for...

Ngày tải lên: 20/06/2014, 01:20

... Image and Video Processing 2011, 2011:10 http://jivp.eurasipjournals.com/content/2011/1/10 Page 10 of 17 provide random access or FIFO queues both for instruc- tions and for data to i ncrease performance ... 130-nm standard-cell technol- ogy and provides 360 32 -bit processing elements and a total of 4 .6 Mb of distributed RAM, working at a maxi- mum frequency of 333 MHz and fe...

Ngày tải lên: 20/06/2014, 22:20

... nodes. • Position of sinks and sensor nodes: The sin ks and sensor nodes are randomly placed, and all sinks and sensor nodes have no mobility. • Communication ranges: The fixed and homoge- neous transmission ... to piggyback the 5-byte information (i.e., hcnt, sum_redr,andmax_redr)on their periodic data packet. On the other hand, CPL requires the 3-byte information (i.e., hcnt and...

Ngày tải lên: 21/06/2014, 00:20

... classification map thresholds s smooth and s edge , and the scale-based weights δ smooth , δ edge and δ detail . 3. Calculate the critical value for each pixel and deter- mine its region type. a. ... scale-based forward -and- backward diffusion process for adaptive image enhancement and denoising. EURASIP Journal on Advances in Signal Processing 2011 2011:22. Submit your manuscr...

Ngày tải lên: 21/06/2014, 02:20

... temperature for 15 min, for adjustment of pH, and one drop of ammonia was added which resulted in th e formation of a precipitate. The precipi- tate was filtered and washed with warm 70% ethanol and ... by linear growth (mm) measuring, and percent inhibition of growth was calculated with refer- ence to negative control using formula. Results and discussion Ligands 2-{[(carboxyme...

Ngày tải lên: 21/06/2014, 02:20