Personal communication

personal communication

Personal Communication Systems

In this paper, a new Markovian model is developed to analyze the Packet Reservation Multiple Access (PRMA) protocol over Rician fading channels with lognormal shadowing. The packet dropping probability and the voice user capacity are defined as the performance measures. A new formula is derived to evaluate the dropping probability in the fading environment. The analytical results from our new f...

Omnisphere: a Personal Communication Environment

Small ubiquitous devices connected by wireless networks will become future Internet appliances. To support them, communication networks must evolve to seamlessly assist appliances and provide advanced functionalities. We present a personal communication environment called Omnisphere that provides a communication and information universe surrounding wireless appliances. It is based on a high lev...

Location Management in Personal Communication Systems

Cellular communication allows subscribers to make and receive calls from anywhere. In the USA, cellular communication was fi rst deployed at the 800MHz band. In order to accommodate more subscribers, the FCC (Federal Communications Commission) allocated the 1900MHz band for PCSs. PCS uses a cellular network as its infrastructure. In a cellular network, a service coverage area is divided into sm...

1 Authentication Protocols for Personal Communication Systems

Masquerading and eavesdropping are major threats to the security of wireless communications. To provide proper protection for the communication of the wireless link, contents of the communication should be enciphered and mutual authentication should be conducted between the subscriber and the serving network. Several protocols have been proposed by standards bodies and independent researchers i...