Recently, blind multi-user detection has become an important topic in code division multiple access (CDMA) systems. Direct-Sequence Spread Spectrum (DSSS) signals are well-known due to their low probability of detection, and secure communication. In this article, the problem of blind multi-user detection is studied in variable processing gain direct-sequence code division multiple access (VPG D...

Abstract Research and development on connected cars equipped with communication functions is being conducted, dynamic maps are researched developed as an information platform for cooperative automatic driving. There a concern about scalability when constructed cloud server to aggregate wide range of vehicle information. The problem can be alleviated by deploying edge servers that divide the geo...

This paper has two objectives. First, it establishes a model for scoring the access to pharmaceutical services. Second, it develops a model for measuring socioeconomic indicators independent of the time and place of study. These two measures are used for measuring equity in access to pharmaceutical services using concentration curve. We prepared an open-ended questionnaire and distributed it to...

This paper has two objectives. First, it establishes a model for scoring the access to pharmaceutical services. Second, it develops a model for measuring socioeconomic indicators independent of the time and place of study. These two measures are used for measuring equity in access to pharmaceutical services using concentration curve. We prepared an open-ended questionnaire and distributed it to...

Quorum systems are tools for increasing the availability and eeciency of replicated services. A quorum system for a universe of servers is a collection of subsets of servers, each pair of which intersect. Intuitively, each quorum can operate on behalf of the system, thus increasing its availability and performance, while the intersection property guarantees that operations done on distinct quor...

In the next five years we can expect to find a variety of cooperative natural language (NL) interfaces to database systems, expert systems, operating systems, CAD systems and even text formatting systems. Although the general problem of getting computers to understand NL is far from being solved, the technology for limited NL access systems is available now and there is a large growing market f...