Networking requirements in a wireless system

Cordless systems together with cellular telephony will be the most important personal communication techniques in the future. Focusing on indoor applications, it will be necessary to implement closely spaced grid of micro-cells so as to use the limited radio spectrum more efficiently and to meet the expected capacity requirements. Among them, one could single out the growing demand for data services. Such reduced cell size makes the control tasks much more complex, demanding a broadband network and a distributed architecture. In order to design a network able to accommodate wireless services, the traffic generated must be modelled, particularly signalling traffic. Protocols for signalling must deal with roaming, call set-up and handover procedures. The authors present the results of computer simulations of an indoor wireless PABX system conforming to the digital European cordless telecommunications (DECT) standard