The assignment of transaction identifiers is one of the important factors influencing the per formance of nested transactions. In this paper, the requirements which the transaction process poses on the transaction identifiers under the nested transaction model are analysed. Based on this, a series of efficient and practical assignment strategies are proposed, and the bit based transaction identifier strategy is implemented in the object oriented database system——KDOODB (KeDa object oriented database).
This paper firstly sets up corresponding system model depending on the characteristic of hierarchical overlay network architecture,and then explores the assignment strategies for mobile data users based on velocity and the quantity of data to be transmitted by each user,their application rules and adaptive assignment strategies and so so.
The performance evaluation results compared with the traditional assignment strategy show that they satisfy the requirements of transaction management more efficiently, and that they are practical efficient assignment strategies.
It is very important for reducing some demands for capacity of the network and its elements and improving the network's reliability and subsistence to design routing algorithms and search for reasonable resource assignment strategies.
Accordingly, channel assignment strategies respond for using the allocated channels of cells to provide communication services in cells.
Novel Assignment Strategies for Spatial Reuse TDMA in Wireless Ad hoc Networks
The length of time that a CDPD stream can occupy a channel is greatly influenced by the channel assignment strategies of both the AMPS and the CDPD systems.
Optimal channel assignment strategies for forced channel hopping in CDPD systems
A limitation, however, is the absence of resonance assignment strategies that work without uniform 15N, 13C labeling or preparation of numerous samples labeled with pairs of isotopically labeled amino acids.
For stochastic multivariable systems, this paper, based on both the optimal and the pole assignment strategies, presents a novel self-tuning controller with weighting factors adjusted on-line. It has been provided with favorable algorithm structure so that the drawbacks of existing schemes are thus overcome.
A fire assignment strategy used in the fire control system of air defence and data processing methods are presented.By using a dynamic optimum processing,the optimal fire assignment strategy is ob- tained in every radar scanning cycle.It is practical and effective according to the flight test and firing prac- tice.
This paper presents a new method of multidimensional pole assignment Self-tuning control that combines the traditional closed loop pole assignment strategy with the stochastic optimal control strategy.The method can be used to calculate the weighting matrix on-line or off-line,and overcome the measurable disturbance and erase the stable state error.