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.
| Original language | English (US) |
|---|---|
| Article number | 4907426 |
| Pages (from-to) | 1591-1596 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Wireless Communications |
| Volume | 8 |
| Issue number | 4 |
| DOIs | |
| State | Published - Apr 2009 |
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics
Keywords
- ALOHA
- Contention resolution
- Delay performance
- Medium access control (MAC)
- Multiple channels
- RTS/CTS dialogue