Title :
Distributed channel assignment using coexistence etiquettes for the land mobile environment
Author :
Grace, D. ; Burr, A.G. ; Tozer, T.C.
Author_Institution :
Dept. of Electron., York Univ., UK
Abstract :
A new distributed channel assignment scheme is described, called unsupervised FDMA (UFDMA) which makes use of a coexistence etiquette. Results are presented which show that call set up time varies linearly with number of channels to be scanned and that calls can be set up within 0.8s when up to 20 frequency channels are used, for a channel scan rate of 20 ms/channel. A lower bound on the signal to noise ratio (SNR) distribution at the receivers of fixed length UFDMA links is derived analytically. Analytical and simulated results are compared for a hypothetical urban environment with a path loss dependency of τ4 and lognormal shadow fading
Keywords :
fading; frequency allocation; frequency division multiple access; land mobile radio; losses; radio links; radio receivers; SNR distribution; analytical results; call set up time; channel scan rate; coexistence etiquettes; distributed channel assignment; fixed length UFDMA links; frequency channels; hypothetical urban environment; land mobile environment; lognormal shadow fading; lower bound; path loss; receivers; signal to noise ratio; simulated results; unsupervised FDMA;
Conference_Titel :
Networking Aspects of Radio Communication Systems , IEE Colloquium on
Conference_Location :
London
DOI :
10.1049/ic:19960366
