Can Multiple Subchannels Improve the Delay Performance of RTS/CTS-based MAC Schemes?

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
Jing Deng, Assistant Professor (Creator)
Institution
The University of North Carolina at Greensboro (UNCG )
Web Site: http://library.uncg.edu/

Abstract: We analyze the delay performance of RTS/CTSbased (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.

Additional Information

Publication
Transactions on Wireless Communication 8(4), 1591 - 1596
Language: English
Date: 2009
Keywords
Medium access control (MAC), Multiple channels , ALOHA, Contention resolution, RTS/CTS dialogue, Delay performance