Title :
Effective forward-channel capacity of non-dedicated CDPD networks
Author :
Salkintzis, Apostolis K.
Author_Institution :
Ins. for Space Appl. & Remote Sensing, Nat. Obs. of Athens, Greece
fDate :
5/1/2000 12:00:00 AM
Abstract :
Cellular digital packet data (CDPD) is a mobile packet data technology developed to operate on the spectrum assigned to a telephone cellular network. Since it operates on non-dedicated RF channels, it is subject to channel hopping and its performance is affected by the traffic profile of the underlying telephone system. We develop formulas expressing the normalized forward channel capacity in terms of telephone traffic conditions and channel hopping parameters. We show that forward capacity is very near to maximum for telephone network utilization less than one, while it degrades rapidly thereafter. Moreover, we develop an expression for the average hopping rate and we demonstrate the sensitivity of capacity with the number of RF channels.
Keywords :
cellular radio; channel capacity; digital radio; packet radio networks; telephone networks; telephone traffic; average hopping rate; cellular digital packet data; channel hopping; channel hopping parameters; effective forward-channel capacity; mobile packet data technology; nondedicated CDPD networks; nondedicated RF channels; normalized forward channel capacity; performance; telephone cellular network; telephone network utilization; telephone traffic conditions; traffic profile; Application software; Cellular networks; Channel capacity; Degradation; Land mobile radio cellular systems; Radio frequency; Remote sensing; Telecommunication traffic; Telephony; Traffic control;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.846499