Effects of users mobility on the selection of time slot size in TDMA wireless networks

Author

Chung, Trang Cong ; Nguyen, Thong ; Tuan, Nguyen Quoc

Author_Institution

Coll. of Technol., Vietnam Nat. Univ. Hanoi, Hanoi

fYear

2008

fDate

6-9 Oct. 2008

Firstpage

16

Lastpage

19

Abstract

Users mobility in wireless networks has the obvious effect of increasing the channel fading fluctuation rate, hence the efficiency of opportunistic scheduling algorithms. In time-slotted wireless systems, the chosen slot size has to be compatible with the average channel access time (AAT) in order to preserve the multiuser diversity gain of the scheduling algorithm. This paper proposes to determine the slot size for max CNR and normalised CNR scheduling algorithms taking into account the distribution of users mobility in a wireless cell.

Keywords

diversity reception; fading channels; mobile radio; multiuser channels; scheduling; time division multiple access; TDMA wireless networks; average channel access time; channel fading fluctuation rate; max CNR scheduling algorithms; multiuser diversity gain; normalised CNR scheduling algorithms; opportunistic scheduling algorithms; time division multiple access; time slot size; time-slotted wireless systems; user mobility; wireless cell; Bandwidth; Fading; Fluctuations; Measurement; Multiuser detection; Resource management; Scheduling algorithm; Throughput; Time division multiple access; Wireless networks; Mobile communication; Rayleigh fading channels; degree of fairness; multiuser channels; multiuser diversity; opportunistic; scheduling; spectral efficiency;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Technologies for Communications, 2008. ATC 2008. International Conference on

Conference_Location

Hanoi

Print_ISBN

978-1-4244-2680-5

Electronic_ISBN

978-1-4244-2681-2

Type

conf

DOI

10.1109/ATC.2008.4760508

Filename

4760508