نتایج جستجو برای: physical layer impairments
تعداد نتایج: 944903 فیلتر نتایج به سال:
The purpose of this study was to determine whether participation in a short and well-structured psychosexual therapy was effective for people with a broad range of physical impairments and chronic diseases. Data were collected from 37 men and 10 women (between 30 and 70 years of age). The results demonstrated that psychosexual therapy has a positive effect on several areas of sexual well-being:...
As the name suggests, wireless systems operate by transmission through space rather than through wired connection. There are two major problems to be addressed in a wireless setting that do not arise in the wired case. The first is that the channel over which communication takes place is time varying. The second being interference between multiple users using a common communication medium. Ther...
Introduction: The use of new technologies in education is one of the topics that has attracted the attention of educational experts in the past two decades. The purpose of this study was to investigate the effect of Instructional Model enriched with Assistive Technology on learning of Students with Physical-Motor Impairments in English classes. Methods: The research method is semi-experimental ...
Internet application performance over wireless links is disappointing due to wireless impairments that adversely affect higher layers. This paper focuses on link layer enhancement mechanisms that hide wireless errors from the rest of the Internet. We simulated file transfer and WWW browsing over TCP and continuous media distribution over UDP, in conjunction with various link layer schemes. Our ...
Internet application performance over wireless links is disappointing due to wireless impairments that adversely affect higher layers. This paper focuses on link layer enhancement mechanisms that hide wireless errors from the rest of the Internet. We simulated file transfer and WWW browsing over TCP and continuous media distribution over UDP, in conjunction with various link layer schemes. Our ...
With the advances in microprocessors and computer networks, fieldbuses are becoming evermore popular. This paper describes the design aspects of a testbed that allows the performance of Ethernet based fieldbuses to be tested. The testbed introduces impairments to a fieldbus at the network level. These impairments and the test-bed implementation are outlined in the paper. The results from testin...
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