Can multiple subchannels improve the delay performance of RTS/CTS-based MAC schemes?

Author

Deng, Jing ; Han, Yunghsiang S. ; Kulkarni, Sanjeev R.

Author_Institution

Dept. of Comput. Sci., Univ. of North Carolina at Greensboro, Greensboro, NC

Volume

8

Issue

4

fYear

2009

fDate

4/1/2009 12:00:00 AM

Firstpage

1591

Lastpage

1596

Abstract

We analyze the delay performance of RTS/CTS-based (Request-To-Send/Clear-To-Send) multi-channel MAC (Medium Access Control) schemes for wireless networks. These schemes usually employ multiple data subchannels for data transmission and one control subchannel to send the RTS/CTS dialogue for channel reservation. Through theoretical analysis and simulations, we show that, in fully-connected networks, such multi-channel MAC schemes suffer longer delays than the corresponding single channel MAC scheme, that puts the RTS/CTS dialogue on the same channel as data packet transmissions. This conclusion holds even when data packets have different priorities and higher priority traffic is sent ahead of lower priority traffic.

Keywords

access protocols; channel allocation; packet radio networks; telecommunication traffic; wireless channels; CTS-based MAC scheme; RTS-based MAC scheme; channel reservation; data packet transmission traffic; delay performance; medium access control; multiple subchannels; wireless network; Analytical models; Communication system traffic control; Data communication; Delay; Media Access Protocol; Performance analysis; Throughput; Traffic control; Wireless communication; Wireless networks; ALOHA; Medium access control (MAC); RTS/CTS dialogue; contention resolution; delay performance; multiple channels;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2009.060932

Filename

4907426