In this paper, we propose a location management strategy that minimizes the radio bandwidth cost for paging and location update. The proposed strategy uses the concept of multilayer and is based on the timer-initiated location update and 3-step paging. The system assigns an optimal layer number to a mobile terminal according to the user’s mobility pattern and call arrival rate. The mobile termi...

2 Abstract The power consumption of the network interface plays a major role in determining the total operating lifetime of wireless handheld devices. On demand paging has been proposed earlier to reduce power consumption in cellular networks. In this scheme, a low power secondary radio is used to wake up the higher power radio, allowing the latter to sleep or remain off for longer periods of t...

Recently, a flash memory has become a major database storage in building portable information devices because of its non-volatile, shock-resistant, power-economic nature, and fast access time for read operations. We propose a new scheme called flash memory shadow paging (FMSP) scheme for efficient page management in a flash memory database environment. We improved traditional shadow paging sche...

Location management scheme tracking the location information of a mobile user is required to deliver the incoming calls since the latest wireless communication networks allow dynamic relocation of mobile terminals. In this paper, we propose a mobile locality based location management scheme using the mobility information of mobile users to provide an efficient location management mechanism. In ...

Objective There is a general tendency toward direct marketing these days. Therefore, instead of designing advertisement and marketing strategies for all the customers in the market, it is recommended to classify the customers based on clustering techniques and then design specific strategies accordingly. This will reduce marketing and advertisement expenses, increase sale department efficientl...

Application startup latency has become a performance problem for both desktop applications and web applications. In this paper, we show that much of the latency experienced during application startup can be avoided by more e ciently packing application code pages. To take advantage of more e cient packing, we describe the implementation of demand paging for web applications. Finally, we show th...

We describe a new potential function based proof for anO(log k)-competitive algorithm for weighted paging, and more generally anO(log k/(k−h+1))-competitive algorithm for the weighted (h, k)-paging problem. In contrast to previous results that are based on the online primal-dual framework, our analysis is extremely simple, and we believe that the technique might be useful in the analysis of oth...

To cite: Wu R. BMJ Qual Saf Published Online First: [please include Day Month Year] doi:10.1136/bmjqs-2015005031 In hospitals, breakdowns in communication has been found to be a major source of errors. Communication between clinicians can occur at scheduled times or rounds, through face-to-face meetings or may be facilitated through the use of communication tools such as pagers. For the latter,...

A materialized view is a certain synopsis structure precomputed from one or more data sets (called base tables) in order to facilitate various queries on the data. When the underlying base tables change, the materialized view also needs to be updated accordingly to reflect those changes. We consider the problem of batch-incrementally maintaining a materialized view under a response-time constra...