Title :
A packet channel sharing protocol for dynamic channel assignment systems
Author :
Kayama, Hidetoshi ; Ichikawa, Takeo
Author_Institution :
NTT Wireless Syst. Labs., Kanagawa, Japan
Abstract :
A major trend in mobile communications is the development of digital cordless telephone systems such as PHS and DECT for personal communications. These systems offer higher channel speeds than existing cellular systems, and should support data transmission as well as voice. This paper proposes a new packet channel provisioning method for sharing TDMA radio channels with circuit-switched calls for dynamic channel assignment systems. The method is characterized by a two step random-access mechanism; the first step is carrier sensing to obtain an available TDMA channel for packet transmission. The next step is the application of a reservation-grant based random-access protocol for multiplexing terminals on the packet channel. The characteristics of this protocol are evaluated using a computer simulation based on a 4-channel TDMA/TDD. The results clarify the advantage of the method in terms of channel efficiency
Keywords :
cellular radio; circuit switching; cordless telephone systems; data communication; digital radio; frequency allocation; land mobile radio; packet radio networks; personal communication networks; time division multiple access; voice communication; 4-channel TDMA/TDD; DECT; PHS; TDMA radio channels; carrier sensing; cellular systems; channel efficiency; channel sharing; circuit switched calls; computer simulation; data transmission; digital cordless telephone systems; dynamic channel assignment; dynamic channel assignment systems; mobile communications; packet channel provisioning method; packet channel sharing protocol; packet transmission; performance evaluation; personal communications; random-access mechanism; reservation grant based random access protocol; terminals multiplexing; voice transmission; Access protocols; Base stations; Channel capacity; Circuits; Communication system traffic control; Computer simulation; Data communication; Downlink; Speech; Time division multiple access;
Conference_Titel :
Global Telecommunications Conference, 1995. GLOBECOM '95., IEEE
Print_ISBN :
0-7803-2509-5
DOI :
10.1109/GLOCOM.1995.502585
