Mobile radio window random-access algorithm with diversity

Author

Yücel, Burak ; Deliç, Hakan

Author_Institution

Dept. of Electr. & Electron. Eng., Bogazici Univ., Istanbul, Turkey

Volume

49

Issue

6

fYear

2000

fDate

11/1/2000 12:00:00 AM

Firstpage

2060

Lastpage

2070

Abstract

We consider a mobile radio random-access algorithm equipped with a choice of three distinct antenna diversity plans (two-fold, maximum selection, or ideal selection diversity) to improve the performance. The algorithm is stable with high throughput and low delays. The mobile environment is regulated by the presence of multipath fading, shadowing, and path loss. The capture model is a threshold model based on the signal-to-interference ratio. The maximum throughput and optimal window size of the algorithm are analytically computed. The delay performance is evaluated through simulations, and significant improvement is demonstrated over slotted ALOHA under various mobile scenarios

Keywords

access protocols; delays; digital simulation; diversity reception; fading channels; land mobile radio; losses; multipath channels; packet radio networks; radiofrequency interference; random processes; antenna diversity; capture model; delay performance; high throughput; ideal selection diversity; low delays; maximum selection diversity; maximum throughput; mobile radio link; mobile radio window random-access algorithm; multipath fading; multipath scattering; optimal window size; packet transmission; path loss; shadowing; signal-to-interference ratio; simulations; slotted ALOHA; stable algorithm; threshold model; two-fold diversity; Antennas and propagation; Computational modeling; Delay; Fading; Land mobile radio; Mobile antennas; Multiaccess communication; Shadow mapping; Signal processing; Throughput;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.901869

Filename

901869