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Modern solid state disk (SSD) has a buffer (SDRAM), which is used to store commonly used data and map in the near future. How to efficient management of this buffer is an important things of improving performance of SSD. Flash read and write speed have asymmetric characteristic. SSD buffer management algorithms must consider this characteristic of flash. Current page mapping SSD buffer management...
Artificial bee colony (ABC) algorithm is a new global stochastic optimization algorithm based on the collective foraging behavior of honeybee swarms. In order to improve the intensification ability of ABC algorithm, a hybrid ABC (HABC) algorithm is presented where chemotaxis behavior of bacterial foraging optimization algorithm is embedded into the exploitation process of employed bees and onlooker...
Cognitive Radio requires improving spectrum utilization, and focusing on complexity of the sub carrier power allocation algorithm in OFDM system, A power allocation method which plots the entire channel into lots sub carriers segments is proposed. It gets the maximum communication throughput by auto-adapted modulation. After improved the method, the system performance is also improved. The result...
The string matching algorithm is an important one of the key techniques. On the basis of the research on some kind of algorithms and the test to these algorithms, a faster single-mode matching algorithm-QBP algorithm is proposed in this paper. By adding the seat shifted table and using the fixed window in this algorithm, higher efficiency is achieved. It is illustrated by an experiment that when the...
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