Stability of mobile slotted ALOHA network with Rayleigh fading, shadowing, and near-far effect

Author

Van Der Plas, Cornelis ; Linnartz, Jean-Paul M G

Author_Institution

Telecommun. & Traffic-Control Syst. Group, Delft Univ. of Technol., Netherlands

Volume

39

Issue

4

fYear

1990

fDate

11/1/1990 12:00:00 AM

Firstpage

359

Lastpage

366

Abstract

Dynamic network behavior is investigated using the classical ALOHA queueing model extended to mobile channels. The focus is on the assessment of receiver capture probabilities, based on a general propagation model for mobile radio communications. Queueing of packets in a mobile slotted ALOHA network with Rayleigh fading, shadowing, and UHF groundwave propagation is studied, using a finite Markov chain model. It is shown that receiver capture, assisted by all three propagation mechanisms, reduces bistability of the network substantially compared to the retransmission strategy. Results are presented for a uniform spatial distribution of the packet traffic ordered to the ALOHA channel. The near-far effect is highlighted, since the total network performance and the spatial distribution of the attempted traffic interact

Keywords

digital radio systems; fading; mobile radio systems; multi-access systems; packet switching; protocols; queueing theory; radiowave propagation; Rayleigh fading; UHF groundwave propagation; dynamic network behaviour; finite Markov chain model; mobile channels; mobile radio communications; mobile slotted ALOHA network; near-far effect; packet traffic; propagation model; queueing model; receiver capture probabilities; shadowing; stability; uniform spatial distribution; Access protocols; Base stations; Density estimation robust algorithm; Programmable logic arrays; Rayleigh channels; Shadow mapping; Stability; Telecommunication traffic; Traffic control; UHF propagation;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.61357

Filename

61357