other end. Readers send a continuous radio wave and the tags modulate this base band signal by adding encoded information into it, which the readers decode. Modulation schemes used for RF communication are amplitude shift keying (ASK), frequency shift keying (FSK) and phase shift keying (PSK). The modulation technique’s choice is based on the power consumption, reliability and available bandwidth. ASK is most commonly used in load modulation and PSK for backscattering.
1 Project 1: 1.a RFC 4707: The Netnews Administration System: The Netnews Administration System is a platform which has been made for ease for administration and utilization of Netnews via online. Further the newsgroups data kept in the centralization boundary database in an environment of client-server protocol to be distributed. Moreover, the data can be accessed by news servers, news administrators, and the readers. However, three of them have different access, such as the server can perform configuration
1. Introduction Nowadays, digital electronic devices have been used to make a lot of things easier and better. Personal computers have been successful to help people in their works and to provide entertainment, thus it is not surprising if now people are thinking to make the electronic systems to be incorporated further into medical field, so that its service can be cheaper, easier to be accessed, and better in quality. Some patients with chronic illness sometimes need to be monitored closely by
Functions of some active and passive components of GSM base station such as transceiver (TRx), power amplifiers (PA), combiners, duplexers, antennas, alarm extension system, control function, base-band receiver (BBxx), signal DSP, main distribution board, rectifier and Environmental Monitoring Unit (EMU) are discussed in [20]. Other components discussed are DC ventilation system, air conditional, generators, BTS cabinet, transmission rack, microwave antenna, aviation light, and optical fibre/coaxial
Wireless communication has encouraged the practice of optimizing performance in wireless networks to achieve higher data rates and network coverage for the end user. Such strategies and methods will be examined to verify their validity and to introduce future solutions to the limitations of wireless communication systems. Wireless communication performance is affected by channel fading, path loss, and interference. There are several techniques that can be used to avoid signal degradation. At
being replaced by new greenfield investment abroad. Four types of “outsourcing” are reported, using location and control/ownership as distinguishing criteria: Ø Captive onshore outsourcing implies a shift in intra-firm supplies to an affiliated firm in the home economy. Ø If the shift in sourcing of supplies benefits a non-affiliated firm in the home economy, one can describe it as non-captive onshore outsourcing. The term “onshore” could be replaced in both cases by “local” or “domestic”
The Emergence of Satellite Radio While the transition of television to a digital technology with its improved picture and sound quality has been a much publicized and controversial process, television's venerable ancestor, radio, has stayed in the background. But this year, in the United States, radio broadcasting is making its own digital leap. Two start-ups are introducing a new type of radio broadcast--subscription-based digital audio sent from satellites. With satellite digital audio radio
The Combining of Cable TV and the Internet The Telecommunications Act of 1996 opened the way for cable TV (CATV) companies to become full-fledged telecommunications companies, offering two-way voice and data communications services, in addition to television programming. After passage of the Act, the cable companies were eager to expand into the new fields of business that had been opened to them, especially the rapidly growing Internet Service Provider (ISP) business. The biggest hurdle facing